buffer: make methods work on Uint8Array instances #56578
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Codecov Report❌ Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #56578 +/- ##
==========================================
+ Coverage 88.51% 88.52% +0.01%
==========================================
Files 704 704
Lines 208776 208795 +19
Branches 40301 40295 -6
==========================================
+ Hits 184803 184841 +38
+ Misses 15966 15953 -13
+ Partials 8007 8001 -6
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addaleax
reviewed
Jan 13, 2025
lib/internal/buffer.js
Outdated
| return FunctionPrototypeCall(readInt16BE, this, offset); | ||
| if (byteLength === 1) | ||
| return this.readInt8(offset); | ||
| return FunctionPrototypeCall(readInt8, this, offset); |
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This is already (correctly imo) marked as needing a benchmark CI run, but just as a heads up, if this does turn out to be an issue, it shouldn't be a big deal to create non-prototype versions of these functions that don't use this as the target
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Yea I was thinking of that as an alternative implementation but took the route of least blast radius to start, happy to go through and change them to match the other int parsers that take the argument. (Should we go ahead and do that regardless of the benchmarks?)
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Should we go ahead and do that regardless of the benchmarks?
No strong preferences from my side, maybe somebody else has one. But for now, I'd say we can fix the failures reported by GHA, then run regular CI + benchmark CI and see what happens
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buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='utf8' type='two_bytes' ** -1.37 % ±0.99% ±1.32% ±1.71%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='base64' type='latin1' ** 2.49 % ±1.83% ±2.45% ±3.24%
buffers/buffer-creation.js n=600000 len=1024 type='slow-allocUnsafe' *** -3.01 % ±1.32% ±1.76% ±2.29%
buffers/buffer-creation.js n=600000 len=4096 type='fast-allocUnsafe' *** -4.03 % ±2.22% ±2.96% ±3.85%
buffers/buffer-creation.js n=600000 len=8192 type='fast-allocUnsafe' ** -2.50 % ±1.64% ±2.19% ±2.86%
buffers/buffer-creation.js n=600000 len=8192 type='slow-allocUnsafe' ** -2.49 % ±1.44% ±1.92% ±2.50%
buffers/buffer-fill.js n=20000 size=8192 type='fill("t", 0)' ** -4.09 % ±3.06% ±4.09% ±5.37%
buffers/buffer-from.js n=800000 len=100 source='uint16array' *** -2.03 % ±0.98% ±1.31% ±1.71%
buffers/buffer-from.js n=800000 len=2048 source='arraybuffer-middle' ** 1.65 % ±1.21% ±1.61% ±2.09%
buffers/buffer-from.js n=800000 len=2048 source='arraybuffer' ** 1.82 % ±1.10% ±1.46% ±1.91%
buffers/buffer-swap.js n=1000000 len=256 method='swap32' aligned='false' ** 0.75 % ±0.48% ±0.64% ±0.84%
buffers/buffer-swap.js n=1000000 len=768 method='swap16' aligned='false' ** -1.57 % ±1.08% ±1.45% ±1.90%
buffers/dataview-set.js n=1000000 type='Uint16BE' *** -24.92 % ±1.98% ±2.65% ±3.50%
buffers/dataview-set.js n=1000000 type='Uint16LE' *** -25.11 % ±0.99% ±1.32% ±1.72%
23.55 false positives, when considering a 5% risk acceptance (*, **, ***),
4.71 false positives, when considering a 1% risk acceptance (**, ***),
0.47 false positives, when considering a 0.1% risk acceptance (***)
Just filtered for the two and three star confidence ones and the changes are small, except for oddly the dataview tests, which just happen to be in the buffers folder, not sure how I could've changed that value but maybe this won't reproduce in CI? 🤞🏻
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I think the up-to-minus-4% regressions on the others are also a bit concerning though 😕
To me this does feel like an impact we'd want to avoid if we can at all
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SGTM, I'll try switching over to direct invocations and see if we climb back up
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nbbeeken
commented
Jan 16, 2025
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| // Sanity check (remove if the internals of Buffer.from change): | ||
| // The custom implementation of utf8Write should cause Buffer.from() to encode | ||
| // traversalPath instead of the sanitized output of resolve(). | ||
| assert.strictEqual(Buffer.from(resolve(traversalPathWithExtraChars)).toString(), traversalPath); |
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If I understood correctly this can be deleted now that Buffer.prototype.utf8Write tampering doesn't impact from/toString. However, the test still has value (along with the tampering code above) if that were to be reversed at any point.
nbbeeken
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Jan 18, 2025
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toString()write()[Symbol.for('nodejs.util.inspect.custom')]()includes()readIntBE()(byteLength: 4, 2, 1)readIntLE()(byteLength: 4, 2, 1)readUIntBE()(byteLength: 4, 2, 1)readUIntLE()(byteLength: 4, 2, 1)
still need to update the docs, just noting the functions changed here
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Running: node benchmark/compare.js --runs 10 --old ./node-main --new ./node-buffer-generic-methods buffers > compare-buffer-generic-methods.csvUsing the node version of the compare tool: node-benchmark-compare compare-buffer-generic-methods.csv Gave these results: confidence improvement accuracy (*) (**) (***)
buffers/buffer-atob.js n=1000000 size=128 -0.33 % ±1.48% ±2.06% ±2.87%
buffers/buffer-atob.js n=1000000 size=16 -0.43 % ±1.89% ±2.60% ±3.57%
buffers/buffer-atob.js n=1000000 size=32 0.20 % ±2.27% ±3.12% ±4.27%
buffers/buffer-atob.js n=1000000 size=64 1.98 % ±2.06% ±2.95% ±4.29%
buffers/buffer-base64-decode-wrapped.js n=32 linesCount=524288 charsPerLine=76 1.88 % ±4.92% ±7.02% ±10.20%
buffers/buffer-base64-decode.js size=8388608 n=32 -3.53 % ±6.38% ±9.12% ±13.32%
buffers/buffer-base64-encode.js n=32 len=67108864 0.41 % ±3.63% ±4.97% ±6.77%
buffers/buffer-base64url-decode.js size=8388608 n=32 -1.71 % ±3.26% ±4.62% ±6.65%
buffers/buffer-base64url-encode.js n=32 len=67108864 0.95 % ±1.94% ±2.70% ±3.76%
buffers/buffer-btoa.js n=1000000 size=1024 -0.39 % ±0.72% ±0.99% ±1.35%
buffers/buffer-btoa.js n=1000000 size=128 -0.86 % ±1.39% ±1.90% ±2.59%
buffers/buffer-btoa.js n=1000000 size=16 0.09 % ±0.74% ±1.01% ±1.39%
buffers/buffer-btoa.js n=1000000 size=256 -0.85 % ±2.47% ±3.42% ±4.75%
buffers/buffer-btoa.js n=1000000 size=32 0.33 % ±0.54% ±0.74% ±1.01%
buffers/buffer-btoa.js n=1000000 size=64 -0.22 % ±0.73% ±1.03% ±1.46%
buffers/buffer-bytelength-buffer.js n=4000000 len=16 -0.05 % ±0.63% ±0.86% ±1.18%
buffers/buffer-bytelength-buffer.js n=4000000 len=2 -4.01 % ±8.08% ±11.59% ±17.02%
buffers/buffer-bytelength-buffer.js n=4000000 len=256 1.11 % ±1.67% ±2.36% ±3.38%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='base64' type='four_bytes' 0.02 % ±0.68% ±0.95% ±1.33%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='base64' type='latin1' 1.62 % ±3.25% ±4.45% ±6.07%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='base64' type='one_byte' -0.63 % ±2.80% ±3.86% ±5.29%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='base64' type='three_bytes' -0.52 % ±4.01% ±5.52% ±7.56%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='base64' type='two_bytes' 0.72 % ±2.18% ±3.02% ±4.20%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='utf8' type='four_bytes' -0.04 % ±0.68% ±0.94% ±1.28%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='utf8' type='latin1' -2.31 % ±4.13% ±5.84% ±8.37%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='utf8' type='one_byte' -1.07 % ±1.18% ±1.69% ±2.48%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='utf8' type='three_bytes' -1.35 % ±3.37% ±4.76% ±6.82%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='utf8' type='two_bytes' -0.15 % ±0.48% ±0.67% ±0.94%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='base64' type='four_bytes' 0.05 % ±7.36% ±10.11% ±13.83%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='base64' type='latin1' -0.07 % ±0.88% ±1.23% ±1.71%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='base64' type='one_byte' -1.12 % ±3.74% ±5.14% ±7.01%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='base64' type='three_bytes' 2.65 % ±3.43% ±4.72% ±6.47%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='base64' type='two_bytes' 1.05 % ±4.78% ±6.64% ±9.22%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='utf8' type='four_bytes' -0.94 % ±1.99% ±2.80% ±3.98%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='utf8' type='latin1' 0.07 % ±1.60% ±2.22% ±3.11%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='utf8' type='one_byte' 0.31 % ±0.80% ±1.11% ±1.57%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='utf8' type='three_bytes' -1.70 % ±4.80% ±6.84% ±9.92%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='utf8' type='two_bytes' -0.55 % ±0.98% ±1.36% ±1.86%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='base64' type='four_bytes' 0.76 % ±3.63% ±4.98% ±6.79%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='base64' type='latin1' -0.48 % ±2.06% ±2.91% ±4.15%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='base64' type='one_byte' -2.11 % ±4.75% ±6.56% ±9.08%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='base64' type='three_bytes' 0.18 % ±3.68% ±5.04% ±6.86%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='base64' type='two_bytes' 1.22 % ±4.41% ±6.04% ±8.25%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='utf8' type='four_bytes' -0.60 % ±2.68% ±3.68% ±5.01%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='utf8' type='latin1' 0.33 % ±1.31% ±1.81% ±2.48%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='utf8' type='one_byte' -0.88 % ±4.50% ±6.24% ±8.67%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='utf8' type='three_bytes' -2.61 % ±6.54% ±9.34% ±13.61%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='utf8' type='two_bytes' 0.03 % ±0.79% ±1.09% ±1.50%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='base64' type='four_bytes' -0.36 % ±3.78% ±5.18% ±7.06%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='base64' type='latin1' 2.73 % ±5.85% ±8.20% ±11.60%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='base64' type='one_byte' 0.94 % ±2.95% ±4.04% ±5.51%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='base64' type='three_bytes' -1.58 % ±2.79% ±4.00% ±5.85%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='base64' type='two_bytes' -0.50 % ±4.02% ±5.54% ±7.61%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='utf8' type='four_bytes' -0.41 % ±1.03% ±1.42% ±1.94%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='utf8' type='latin1' 0.32 % ±0.86% ±1.18% ±1.62%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='utf8' type='one_byte' ** -1.90 % ±1.27% ±1.82% ±2.67%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='utf8' type='three_bytes' -0.47 % ±0.86% ±1.21% ±1.72%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='utf8' type='two_bytes' -2.18 % ±3.98% ±5.69% ±8.31%
buffers/buffer-compare-instance-method.js n=1000000 args=1 size=16 -1.38 % ±2.93% ±4.08% ±5.70%
buffers/buffer-compare-instance-method.js n=1000000 args=1 size=16386 1.46 % ±1.62% ±2.28% ±3.24%
buffers/buffer-compare-instance-method.js n=1000000 args=1 size=4096 * -1.85 % ±1.40% ±1.98% ±2.84%
buffers/buffer-compare-instance-method.js n=1000000 args=1 size=512 0.17 % ±1.30% ±1.81% ±2.53%
buffers/buffer-compare-instance-method.js n=1000000 args=2 size=16 *** 2.89 % ±0.64% ±0.89% ±1.22%
buffers/buffer-compare-instance-method.js n=1000000 args=2 size=16386 1.50 % ±1.84% ±2.57% ±3.61%
buffers/buffer-compare-instance-method.js n=1000000 args=2 size=4096 * 3.19 % ±2.31% ±3.25% ±4.62%
buffers/buffer-compare-instance-method.js n=1000000 args=2 size=512 * 6.97 % ±6.06% ±8.71% ±12.80%
buffers/buffer-compare-instance-method.js n=1000000 args=5 size=16 *** 2.68 % ±1.05% ±1.46% ±2.04%
buffers/buffer-compare-instance-method.js n=1000000 args=5 size=16386 0.12 % ±1.20% ±1.64% ±2.24%
buffers/buffer-compare-instance-method.js n=1000000 args=5 size=4096 -0.68 % ±3.14% ±4.47% ±6.48%
buffers/buffer-compare-instance-method.js n=1000000 args=5 size=512 *** 2.84 % ±0.92% ±1.26% ±1.71%
buffers/buffer-compare-offset.js n=1000000 size=16 method='offset' *** 1.85 % ±0.50% ±0.69% ±0.95%
buffers/buffer-compare-offset.js n=1000000 size=16 method='slice' ** 1.07 % ±0.71% ±1.00% ±1.43%
buffers/buffer-compare-offset.js n=1000000 size=16386 method='offset' *** 2.51 % ±0.32% ±0.43% ±0.59%
buffers/buffer-compare-offset.js n=1000000 size=16386 method='slice' -0.41 % ±1.20% ±1.65% ±2.26%
buffers/buffer-compare-offset.js n=1000000 size=4096 method='offset' *** 2.96 % ±0.92% ±1.30% ±1.86%
buffers/buffer-compare-offset.js n=1000000 size=4096 method='slice' -0.18 % ±1.23% ±1.69% ±2.31%
buffers/buffer-compare-offset.js n=1000000 size=512 method='offset' *** 2.53 % ±0.64% ±0.88% ±1.22%
buffers/buffer-compare-offset.js n=1000000 size=512 method='slice' -0.38 % ±1.43% ±1.96% ±2.67%
buffers/buffer-compare.js n=1000000 size=16 0.33 % ±1.12% ±1.55% ±2.12%
buffers/buffer-compare.js n=1000000 size=16386 0.59 % ±1.41% ±1.97% ±2.76%
buffers/buffer-compare.js n=1000000 size=4096 0.27 % ±0.60% ±0.82% ±1.13%
buffers/buffer-compare.js n=1000000 size=512 0.53 % ±1.02% ±1.43% ±2.04%
buffers/buffer-concat-fill.js n=800000 extraSize=1 0.63 % ±2.30% ±3.18% ±4.40%
buffers/buffer-concat-fill.js n=800000 extraSize=1024 -0.05 % ±4.65% ±6.38% ±8.70%
buffers/buffer-concat-fill.js n=800000 extraSize=256 1.99 % ±4.19% ±5.79% ±7.97%
buffers/buffer-concat.js n=800000 withTotalLength=0 pieceSize=1 pieces=16 1.57 % ±1.98% ±2.74% ±3.81%
buffers/buffer-concat.js n=800000 withTotalLength=0 pieceSize=1 pieces=4 6.34 % ±8.16% ±11.62% ±16.88%
buffers/buffer-concat.js n=800000 withTotalLength=0 pieceSize=16 pieces=16 1.05 % ±7.05% ±9.66% ±13.16%
buffers/buffer-concat.js n=800000 withTotalLength=0 pieceSize=16 pieces=4 1.81 % ±9.27% ±12.71% ±17.31%
buffers/buffer-concat.js n=800000 withTotalLength=0 pieceSize=256 pieces=16 0.20 % ±2.85% ±3.91% ±5.33%
buffers/buffer-concat.js n=800000 withTotalLength=0 pieceSize=256 pieces=4 * 5.00 % ±4.50% ±6.34% ±9.02%
buffers/buffer-concat.js n=800000 withTotalLength=1 pieceSize=1 pieces=16 3.95 % ±4.90% ±6.87% ±9.71%
buffers/buffer-concat.js n=800000 withTotalLength=1 pieceSize=1 pieces=4 * 3.30 % ±3.03% ±4.18% ±5.75%
buffers/buffer-concat.js n=800000 withTotalLength=1 pieceSize=16 pieces=16 0.71 % ±2.41% ±3.31% ±4.52%
buffers/buffer-concat.js n=800000 withTotalLength=1 pieceSize=16 pieces=4 10.85 % ±12.14% ±17.33% ±25.23%
buffers/buffer-concat.js n=800000 withTotalLength=1 pieceSize=256 pieces=16 -0.86 % ±3.06% ±4.24% ±5.89%
buffers/buffer-concat.js n=800000 withTotalLength=1 pieceSize=256 pieces=4 3.84 % ±4.50% ±6.36% ±9.11%
buffers/buffer-copy.js n=6000000 partial='false' bytes=1024 -2.50 % ±6.74% ±9.67% ±14.20%
buffers/buffer-copy.js n=6000000 partial='false' bytes=128 0.22 % ±0.74% ±1.03% ±1.42%
buffers/buffer-copy.js n=6000000 partial='false' bytes=8 * 0.84 % ±0.84% ±1.18% ±1.67%
buffers/buffer-copy.js n=6000000 partial='true' bytes=1024 4.44 % ±8.55% ±12.28% ±18.06%
buffers/buffer-copy.js n=6000000 partial='true' bytes=128 0.48 % ±0.84% ±1.17% ±1.65%
buffers/buffer-copy.js n=6000000 partial='true' bytes=8 2.00 % ±3.93% ±5.61% ±8.19%
buffers/buffer-creation.js n=600000 len=10 type='fast-alloc-fill' 0.24 % ±2.53% ±3.49% ±4.81%
buffers/buffer-creation.js n=600000 len=10 type='fast-alloc' -1.11 % ±3.17% ±4.44% ±6.26%
buffers/buffer-creation.js n=600000 len=10 type='fast-allocUnsafe' 3.02 % ±4.03% ±5.67% ±8.06%
buffers/buffer-creation.js n=600000 len=10 type='slow-allocUnsafe' -0.09 % ±2.45% ±3.37% ±4.61%
buffers/buffer-creation.js n=600000 len=1024 type='fast-alloc-fill' 1.88 % ±8.54% ±11.79% ±16.26%
buffers/buffer-creation.js n=600000 len=1024 type='fast-alloc' 2.89 % ±8.55% ±11.76% ±16.15%
buffers/buffer-creation.js n=600000 len=1024 type='fast-allocUnsafe' 0.66 % ±2.98% ±4.09% ±5.58%
buffers/buffer-creation.js n=600000 len=1024 type='slow-allocUnsafe' 2.80 % ±6.70% ±9.22% ±12.65%
buffers/buffer-creation.js n=600000 len=4096 type='fast-alloc-fill' 0.37 % ±3.85% ±5.30% ±7.28%
buffers/buffer-creation.js n=600000 len=4096 type='fast-alloc' 0.10 % ±3.19% ±4.39% ±6.04%
buffers/buffer-creation.js n=600000 len=4096 type='fast-allocUnsafe' 0.95 % ±2.04% ±2.87% ±4.07%
buffers/buffer-creation.js n=600000 len=4096 type='slow-allocUnsafe' 0.24 % ±3.38% ±4.63% ±6.31%
buffers/buffer-creation.js n=600000 len=8192 type='fast-alloc-fill' -0.92 % ±4.70% ±6.48% ±8.90%
buffers/buffer-creation.js n=600000 len=8192 type='fast-alloc' 1.32 % ±7.52% ±10.37% ±14.26%
buffers/buffer-creation.js n=600000 len=8192 type='fast-allocUnsafe' -0.73 % ±6.19% ±8.49% ±11.59%
buffers/buffer-creation.js n=600000 len=8192 type='slow-allocUnsafe' 3.44 % ±7.31% ±10.12% ±14.03%
buffers/buffer-equals.js n=1000000 difflen='false' size=0 -0.72 % ±1.13% ±1.57% ±2.18%
buffers/buffer-equals.js n=1000000 difflen='false' size=16386 0.16 % ±0.25% ±0.35% ±0.47%
buffers/buffer-equals.js n=1000000 difflen='false' size=512 ** -1.11 % ±0.74% ±1.01% ±1.39%
buffers/buffer-equals.js n=1000000 difflen='true' size=0 -0.23 % ±1.02% ±1.40% ±1.92%
buffers/buffer-equals.js n=1000000 difflen='true' size=16386 -0.97 % ±1.56% ±2.21% ±3.16%
buffers/buffer-equals.js n=1000000 difflen='true' size=512 -0.71 % ±1.58% ±2.22% ±3.15%
buffers/buffer-fill.js n=20000 size=65536 type='fill()' * -0.68 % ±0.53% ±0.74% ±1.01%
buffers/buffer-fill.js n=20000 size=65536 type='fill(0)' -0.63 % ±1.01% ±1.39% ±1.90%
buffers/buffer-fill.js n=20000 size=65536 type='fill(100)' -0.68 % ±1.60% ±2.28% ±3.29%
buffers/buffer-fill.js n=20000 size=65536 type='fill(400)' 0.51 % ±1.18% ±1.67% ±2.42%
buffers/buffer-fill.js n=20000 size=65536 type='fill(Buffer.alloc(1), 0)' -0.84 % ±2.05% ±2.85% ±3.98%
buffers/buffer-fill.js n=20000 size=65536 type='fill(t, 0, utf8)' -0.86 % ±1.44% ±2.05% ±2.99%
buffers/buffer-fill.js n=20000 size=65536 type='fill(t, 0)' 0.62 % ±1.36% ±1.88% ±2.60%
buffers/buffer-fill.js n=20000 size=65536 type='fill(t, utf8)' -0.84 % ±0.87% ±1.21% ±1.68%
buffers/buffer-fill.js n=20000 size=65536 type='fill(t)' 0.67 % ±1.49% ±2.04% ±2.77%
buffers/buffer-fill.js n=20000 size=65536 type='fill(test)' -0.87 % ±2.72% ±3.80% ±5.33%
buffers/buffer-fill.js n=20000 size=8192 type='fill()' 0.39 % ±3.55% ±4.89% ±6.72%
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buffers/buffer-swap.js n=1000000 len=768 method='swap16' aligned='true' 0.64 % ±1.36% ±1.87% ±2.57%
buffers/buffer-swap.js n=1000000 len=768 method='swap32' aligned='false' * 1.29 % ±1.05% ±1.44% ±1.97%
buffers/buffer-swap.js n=1000000 len=768 method='swap32' aligned='true' -2.46 % ±9.26% ±13.28% ±19.48%
buffers/buffer-swap.js n=1000000 len=768 method='swap64' aligned='false' 0.97 % ±1.35% ±1.88% ±2.63%
buffers/buffer-swap.js n=1000000 len=768 method='swap64' aligned='true' 2.08 % ±4.15% ±5.87% ±8.44%
buffers/buffer-swap.js n=1000000 len=8192 method='swap16' aligned='false' * -4.60 % ±4.59% ±6.29% ±8.56%
buffers/buffer-swap.js n=1000000 len=8192 method='swap16' aligned='true' 2.63 % ±5.59% ±8.02% ±11.79%
buffers/buffer-swap.js n=1000000 len=8192 method='swap32' aligned='false' -6.74 % ±7.03% ±9.71% ±13.42%
buffers/buffer-swap.js n=1000000 len=8192 method='swap32' aligned='true' -0.02 % ±1.74% ±2.46% ±3.50%
buffers/buffer-swap.js n=1000000 len=8192 method='swap64' aligned='false' -2.60 % ±5.74% ±7.89% ±10.80%
buffers/buffer-swap.js n=1000000 len=8192 method='swap64' aligned='true' 0.18 % ±0.90% ±1.28% ±1.83%
buffers/buffer-tojson.js len=0 n=10000 8.57 % ±24.29% ±33.27% ±45.33%
buffers/buffer-tojson.js len=256 n=10000 -1.86 % ±3.11% ±4.26% ±5.81%
buffers/buffer-tojson.js len=4096 n=10000 0.38 % ±2.13% ±2.93% ±3.99%
buffers/buffer-tostring.js n=1000000 len=1 args=0 encoding='' -0.29 % ±0.46% ±0.64% ±0.87%
buffers/buffer-tostring.js n=1000000 len=1 args=1 encoding='ascii' *** -2.87 % ±1.02% ±1.42% ±1.99%
buffers/buffer-tostring.js n=1000000 len=1 args=1 encoding='hex' * -2.88 % ±2.10% ±2.93% ±4.11%
buffers/buffer-tostring.js n=1000000 len=1 args=1 encoding='latin1' 1.16 % ±1.86% ±2.61% ±3.70%
buffers/buffer-tostring.js n=1000000 len=1 args=1 encoding='UCS-2' -0.37 % ±6.57% ±9.00% ±12.27%
buffers/buffer-tostring.js n=1000000 len=1 args=1 encoding='utf8' * 0.59 % ±0.51% ±0.70% ±0.96%
buffers/buffer-tostring.js n=1000000 len=1 args=3 encoding='ascii' -0.05 % ±5.73% ±8.23% ±12.09%
buffers/buffer-tostring.js n=1000000 len=1 args=3 encoding='hex' * -2.61 % ±2.13% ±2.92% ±3.99%
buffers/buffer-tostring.js n=1000000 len=1 args=3 encoding='latin1' ** 1.75 % ±1.19% ±1.67% ±2.38%
buffers/buffer-tostring.js n=1000000 len=1 args=3 encoding='UCS-2' -3.64 % ±5.98% ±8.21% ±11.20%
buffers/buffer-tostring.js n=1000000 len=1 args=3 encoding='utf8' 4.42 % ±8.73% ±12.48% ±18.23%
buffers/buffer-tostring.js n=1000000 len=1024 args=0 encoding='' 1.67 % ±2.93% ±4.05% ±5.60%
buffers/buffer-tostring.js n=1000000 len=1024 args=1 encoding='ascii' 0.92 % ±8.34% ±11.53% ±15.90%
buffers/buffer-tostring.js n=1000000 len=1024 args=1 encoding='hex' -1.29 % ±2.75% ±3.84% ±5.39%
buffers/buffer-tostring.js n=1000000 len=1024 args=1 encoding='latin1' 3.45 % ±6.18% ±8.79% ±12.71%
buffers/buffer-tostring.js n=1000000 len=1024 args=1 encoding='UCS-2' 0.82 % ±4.30% ±6.16% ±9.04%
buffers/buffer-tostring.js n=1000000 len=1024 args=1 encoding='utf8' * 1.99 % ±1.90% ±2.62% ±3.59%
buffers/buffer-tostring.js n=1000000 len=1024 args=3 encoding='ascii' 1.18 % ±3.41% ±4.68% ±6.39%
buffers/buffer-tostring.js n=1000000 len=1024 args=3 encoding='hex' -0.44 % ±2.67% ±3.72% ±5.18%
buffers/buffer-tostring.js n=1000000 len=1024 args=3 encoding='latin1' 0.57 % ±3.18% ±4.35% ±5.93%
buffers/buffer-tostring.js n=1000000 len=1024 args=3 encoding='UCS-2' 1.76 % ±3.95% ±5.45% ±7.51%
buffers/buffer-tostring.js n=1000000 len=1024 args=3 encoding='utf8' 2.58 % ±4.16% ±5.90% ±8.49%
buffers/buffer-tostring.js n=1000000 len=64 args=0 encoding='' *** 4.79 % ±1.27% ±1.78% ±2.52%
buffers/buffer-tostring.js n=1000000 len=64 args=1 encoding='ascii' -2.02 % ±2.29% ±3.13% ±4.27%
buffers/buffer-tostring.js n=1000000 len=64 args=1 encoding='hex' -4.68 % ±7.01% ±9.98% ±14.44%
buffers/buffer-tostring.js n=1000000 len=64 args=1 encoding='latin1' 0.44 % ±1.97% ±2.70% ±3.69%
buffers/buffer-tostring.js n=1000000 len=64 args=1 encoding='UCS-2' * 4.49 % ±3.83% ±5.46% ±7.94%
buffers/buffer-tostring.js n=1000000 len=64 args=1 encoding='utf8' 2.15 % ±2.18% ±2.98% ±4.06%
buffers/buffer-tostring.js n=1000000 len=64 args=3 encoding='ascii' -0.17 % ±4.79% ±6.72% ±9.52%
buffers/buffer-tostring.js n=1000000 len=64 args=3 encoding='hex' -0.37 % ±2.48% ±3.40% ±4.64%
buffers/buffer-tostring.js n=1000000 len=64 args=3 encoding='latin1' -4.26 % ±11.36% ±16.23% ±23.66%
buffers/buffer-tostring.js n=1000000 len=64 args=3 encoding='UCS-2' * 3.24 % ±2.86% ±3.94% ±5.43%
buffers/buffer-tostring.js n=1000000 len=64 args=3 encoding='utf8' ** 2.21 % ±1.57% ±2.15% ±2.93%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ascii' fromEncoding='ascii' 0.84 % ±6.77% ±9.27% ±12.63%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ascii' fromEncoding='latin1' 7.43 % ±21.04% ±29.80% ±42.83%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ascii' fromEncoding='ucs2' 5.38 % ±11.95% ±16.70% ±23.49%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ascii' fromEncoding='utf8' -3.97 % ±8.64% ±11.85% ±16.17%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='latin1' fromEncoding='ascii' 6.91 % ±10.16% ±14.04% ±19.40%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='latin1' fromEncoding='latin1' -2.94 % ±6.88% ±9.43% ±12.85%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='latin1' fromEncoding='ucs2' 5.13 % ±7.49% ±10.29% ±14.07%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='latin1' fromEncoding='utf8' 1.33 % ±8.04% ±11.08% ±15.22%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ucs2' fromEncoding='ascii' 1.99 % ±7.87% ±10.81% ±14.80%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ucs2' fromEncoding='latin1' 3.77 % ±9.75% ±13.36% ±18.22%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ucs2' fromEncoding='ucs2' -6.74 % ±7.49% ±10.37% ±14.35%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ucs2' fromEncoding='utf8' 2.55 % ±7.32% ±10.06% ±13.79%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='utf8' fromEncoding='ascii' 0.06 % ±7.26% ±9.97% ±13.61%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='utf8' fromEncoding='latin1' -0.87 % ±5.22% ±7.22% ±10.00%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='utf8' fromEncoding='utf8' 12.77 % ±13.73% ±19.03% ±26.42%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ascii' fromEncoding='ascii' 11.67 % ±24.60% ±34.99% ±50.65%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ascii' fromEncoding='latin1' 4.95 % ±5.46% ±7.54% ±10.39%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ascii' fromEncoding='ucs2' 3.44 % ±4.60% ±6.31% ±8.61%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ascii' fromEncoding='utf8' 3.59 % ±7.43% ±10.24% ±14.06%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='latin1' fromEncoding='ascii' 4.80 % ±6.88% ±9.50% ±13.10%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='latin1' fromEncoding='latin1' 2.57 % ±6.35% ±8.70% ±11.85%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='latin1' fromEncoding='ucs2' -0.01 % ±8.26% ±11.35% ±15.53%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='latin1' fromEncoding='utf8' -3.06 % ±8.03% ±11.00% ±14.99%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ucs2' fromEncoding='ascii' 4.85 % ±12.49% ±17.22% ±23.71%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ucs2' fromEncoding='latin1' 1.15 % ±8.27% ±11.38% ±15.59%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ucs2' fromEncoding='ucs2' -0.76 % ±6.18% ±8.50% ±11.65%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ucs2' fromEncoding='utf8' -1.40 % ±11.85% ±16.42% ±22.77%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='utf8' fromEncoding='ascii' -3.78 % ±8.36% ±11.48% ±15.70%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='utf8' fromEncoding='latin1' 1.67 % ±8.91% ±12.33% ±17.07%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='utf8' fromEncoding='utf8' 3.33 % ±15.98% ±22.10% ±30.56%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ascii' fromEncoding='ascii' 7.20 % ±13.47% ±19.26% ±28.11%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ascii' fromEncoding='latin1' -0.39 % ±4.33% ±6.01% ±8.36%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ascii' fromEncoding='ucs2' -1.70 % ±4.86% ±6.70% ±9.22%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ascii' fromEncoding='utf8' -4.31 % ±4.57% ±6.34% ±8.84%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='latin1' fromEncoding='ascii' 2.27 % ±4.57% ±6.28% ±8.58%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='latin1' fromEncoding='latin1' 3.92 % ±7.06% ±9.94% ±14.13%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='latin1' fromEncoding='ucs2' -0.88 % ±2.20% ±3.02% ±4.13%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='latin1' fromEncoding='utf8' -0.46 % ±1.85% ±2.54% ±3.46%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ucs2' fromEncoding='ascii' 0.63 % ±5.39% ±7.50% ±10.48%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ucs2' fromEncoding='latin1' 1.10 % ±3.47% ±4.75% ±6.47%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ucs2' fromEncoding='ucs2' 0.82 % ±2.89% ±4.10% ±5.92%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ucs2' fromEncoding='utf8' -0.19 % ±3.85% ±5.28% ±7.19%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='utf8' fromEncoding='ascii' 0.51 % ±3.87% ±5.32% ±7.31%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='utf8' fromEncoding='latin1' 0.48 % ±4.04% ±5.64% ±7.90%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='utf8' fromEncoding='utf8' -6.01 % ±14.36% ±20.31% ±29.13%
buffers/buffer-write-string-short.js n=1000000 len=1 encoding='ascii' 2.56 % ±4.92% ±6.94% ±9.92%
buffers/buffer-write-string-short.js n=1000000 len=1 encoding='latin1' -0.81 % ±1.42% ±1.96% ±2.70%
buffers/buffer-write-string-short.js n=1000000 len=1 encoding='utf8' -0.69 % ±2.14% ±2.94% ±4.03%
buffers/buffer-write-string-short.js n=1000000 len=16 encoding='ascii' -3.41 % ±6.29% ±8.90% ±12.77%
buffers/buffer-write-string-short.js n=1000000 len=16 encoding='latin1' -0.31 % ±3.22% ±4.41% ±6.01%
buffers/buffer-write-string-short.js n=1000000 len=16 encoding='utf8' -0.68 % ±2.76% ±3.79% ±5.16%
buffers/buffer-write-string-short.js n=1000000 len=32 encoding='ascii' 0.51 % ±2.65% ±3.63% ±4.96%
buffers/buffer-write-string-short.js n=1000000 len=32 encoding='latin1' -1.33 % ±2.14% ±2.94% ±4.02%
buffers/buffer-write-string-short.js n=1000000 len=32 encoding='utf8' -4.41 % ±5.67% ±7.97% ±11.30%
buffers/buffer-write-string-short.js n=1000000 len=8 encoding='ascii' 0.51 % ±2.74% ±3.78% ±5.19%
buffers/buffer-write-string-short.js n=1000000 len=8 encoding='latin1' -5.80 % ±9.26% ±13.16% ±19.02%
buffers/buffer-write-string-short.js n=1000000 len=8 encoding='utf8' -1.51 % ±4.29% ±5.90% ±8.11%
buffers/buffer-write-string.js n=1000000 len=2048 args='' encoding='' -1.03 % ±1.79% ±2.45% ±3.34%
buffers/buffer-write-string.js n=1000000 len=2048 args='' encoding='ascii' 0.46 % ±1.40% ±1.95% ±2.73%
buffers/buffer-write-string.js n=1000000 len=2048 args='' encoding='hex' 0.48 % ±2.77% ±3.84% ±5.31%
buffers/buffer-write-string.js n=1000000 len=2048 args='' encoding='latin1' 0.00 % ±12.08% ±16.56% ±22.59%
buffers/buffer-write-string.js n=1000000 len=2048 args='' encoding='utf16le' ** -4.86 % ±3.33% ±4.70% ±6.72%
buffers/buffer-write-string.js n=1000000 len=2048 args='' encoding='utf8' -1.49 % ±3.73% ±5.18% ±7.20%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset' encoding='' * -1.17 % ±1.11% ±1.53% ±2.08%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset' encoding='ascii' -0.05 % ±2.44% ±3.35% ±4.58%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset' encoding='hex' -1.74 % ±2.10% ±2.91% ±4.02%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset' encoding='latin1' 1.22 % ±3.35% ±4.75% ±6.82%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset' encoding='utf16le' -0.45 % ±7.45% ±10.63% ±15.46%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset' encoding='utf8' * -2.07 % ±1.80% ±2.49% ±3.45%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset+length' encoding='' -1.69 % ±1.90% ±2.65% ±3.74%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset+length' encoding='ascii' -2.70 % ±7.75% ±11.11% ±16.30%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset+length' encoding='hex' * -2.10 % ±1.59% ±2.20% ±3.03%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset+length' encoding='latin1' 0.84 % ±2.86% ±3.96% ±5.47%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset+length' encoding='utf16le' * -3.12 % ±2.79% ±3.88% ±5.42%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset+length' encoding='utf8' -1.02 % ±1.82% ±2.49% ±3.39%
buffers/buffer-write.js n=1000000 type='BigInt64BE' buffer='fast' 1.60 % ±5.58% ±7.84% ±11.13%
buffers/buffer-write.js n=1000000 type='BigInt64LE' buffer='fast' -0.04 % ±4.20% ±5.79% ±7.96%
buffers/buffer-write.js n=1000000 type='BigUInt64BE' buffer='fast' -3.06 % ±4.55% ±6.31% ±8.76%
buffers/buffer-write.js n=1000000 type='BigUInt64LE' buffer='fast' -0.58 % ±4.93% ±6.82% ±9.43%
buffers/buffer-write.js n=1000000 type='DoubleBE' buffer='fast' -0.19 % ±2.84% ±3.89% ±5.31%
buffers/buffer-write.js n=1000000 type='DoubleLE' buffer='fast' 8.25 % ±16.59% ±23.77% ±34.84%
buffers/buffer-write.js n=1000000 type='FloatBE' buffer='fast' 0.12 % ±2.95% ±4.05% ±5.56%
buffers/buffer-write.js n=1000000 type='FloatLE' buffer='fast' -0.83 % ±2.88% ±3.95% ±5.39%
buffers/buffer-write.js n=1000000 type='Int16BE' buffer='fast' -1.29 % ±2.55% ±3.62% ±5.20%
buffers/buffer-write.js n=1000000 type='Int16LE' buffer='fast' 1.93 % ±2.79% ±3.91% ±5.54%
buffers/buffer-write.js n=1000000 type='Int32BE' buffer='fast' -0.78 % ±3.70% ±5.09% ±6.98%
buffers/buffer-write.js n=1000000 type='Int32LE' buffer='fast' -0.14 % ±4.69% ±6.43% ±8.77%
buffers/buffer-write.js n=1000000 type='Int8' buffer='fast' 0.58 % ±3.33% ±4.66% ±6.57%
buffers/buffer-write.js n=1000000 type='IntBE' buffer='fast' * 2.36 % ±1.96% ±2.69% ±3.67%
buffers/buffer-write.js n=1000000 type='IntLE' buffer='fast' 0.22 % ±1.88% ±2.58% ±3.53%
buffers/buffer-write.js n=1000000 type='UInt16BE' buffer='fast' 3.07 % ±3.96% ±5.57% ±7.91%
buffers/buffer-write.js n=1000000 type='UInt16LE' buffer='fast' 1.34 % ±3.94% ±5.40% ±7.37%
buffers/buffer-write.js n=1000000 type='UInt32BE' buffer='fast' -1.69 % ±2.62% ±3.64% ±5.08%
buffers/buffer-write.js n=1000000 type='UInt32LE' buffer='fast' -1.68 % ±3.55% ±4.91% ±6.79%
buffers/buffer-write.js n=1000000 type='UInt8' buffer='fast' 8.56 % ±13.99% ±20.00% ±29.17%
buffers/buffer-write.js n=1000000 type='UIntBE' buffer='fast' -0.29 % ±3.57% ±4.94% ±6.83%
buffers/buffer-write.js n=1000000 type='UIntLE' buffer='fast' * -2.54 % ±2.50% ±3.45% ±4.74%
buffers/buffer-zero.js type='buffer' n=1000000 0.34 % ±2.89% ±3.97% ±5.43%
buffers/buffer-zero.js type='string' n=1000000 -1.99 % ±3.64% ±5.14% ±7.36%
buffers/dataview-set.js n=1000000 type='Float32BE' -5.55 % ±9.42% ±13.50% ±19.80%
buffers/dataview-set.js n=1000000 type='Float32LE' -0.89 % ±6.55% ±9.03% ±12.43%
buffers/dataview-set.js n=1000000 type='Float64BE' 6.10 % ±17.80% ±25.46% ±37.19%
buffers/dataview-set.js n=1000000 type='Float64LE' -5.14 % ±11.87% ±17.00% ±24.89%
buffers/dataview-set.js n=1000000 type='Int16BE' -0.53 % ±2.70% ±3.71% ±5.05%
buffers/dataview-set.js n=1000000 type='Int16LE' -0.04 % ±1.98% ±2.72% ±3.73%
buffers/dataview-set.js n=1000000 type='Int32BE' 3.64 % ±6.25% ±8.80% ±12.54%
buffers/dataview-set.js n=1000000 type='Int32LE' 1.00 % ±2.96% ±4.06% ±5.54%
buffers/dataview-set.js n=1000000 type='Int8' -1.75 % ±2.16% ±2.97% ±4.07%
buffers/dataview-set.js n=1000000 type='Uint16BE' 1.55 % ±2.42% ±3.32% ±4.55%
buffers/dataview-set.js n=1000000 type='Uint16LE' -0.33 % ±2.19% ±3.01% ±4.09%
buffers/dataview-set.js n=1000000 type='Uint32BE' -1.22 % ±1.92% ±2.64% ±3.61%
buffers/dataview-set.js n=1000000 type='Uint32LE' 0.10 % ±2.83% ±3.91% ±5.38%
buffers/dataview-set.js n=1000000 type='Uint8' 2.38 % ±3.74% ±5.22% ±7.32%
Be aware that when doing many comparisons the risk of a false-positive result increases.
In this case, there are 471 comparisons, you can thus expect the following amount of false-positive results:
23.55 false positives, when considering a 5% risk acceptance (*, **, ***),
4.71 false positives, when considering a 1% risk acceptance (**, ***),
0.47 false positives, when considering a 0.1% risk acceptance (***)
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Benchmark CI to see what this currently looks like: https://ci.nodejs.org/view/Node.js%20benchmark/job/benchmark-node-micro-benchmarks/1751/ Edit: Results: in the fold |
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btw, this failure in the Github CI seems related: |
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nbbeeken
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Nov 6, 2025
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| eval('%OptimizeFunctionOnNextCall(Buffer.prototype.utf8Write)'); | ||
| eval('%OptimizeFunctionOnNextCall(utf8Write)'); |
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There was a problem hiding this comment.
For the same reason this test was changed: https://github.com/nodejs/node/pull/56578/files#r1917498109
No longer do we rely on neighboring prototype methods as the helpers to support other methods, "writeString" is going to call a floating function "utf8Write" in the buffer module so that it can still work when "this" is a Uint8Array and not a Buffer.
Contributor
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Def need to open these in a new tab and zooooooooom Visualizing the results of the CI runJust the significant negatives
The negatives (considering error bar)
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addaleax
approved these changes
Dec 9, 2025
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I'm good with this in its current state.
Full disclosure: @nbbeeken and me are coworkers, so I'll ping @nodejs/buffer and apply the review wanted label in case somebody else would like to take a look
CI: https://ci.nodejs.org/job/node-test-pull-request/70455/ (💛)
Benchmark CI: https://ci.nodejs.org/view/Node.js%20benchmark/job/benchmark-node-micro-benchmarks/1771/
Edit: Longer Benchmark CI: https://ci.nodejs.org/view/Node.js%20benchmark/job/benchmark-node-micro-benchmarks/1772/
Benchmark CI results
buffers/buffer-atob.js n=1000000 size=128 -0.66 % ±0.84% ±1.10% ±1.42%
buffers/buffer-atob.js n=1000000 size=16 * -0.81 % ±0.68% ±0.89% ±1.14%
buffers/buffer-atob.js n=1000000 size=32 * 0.76 % ±0.74% ±0.98% ±1.26%
buffers/buffer-atob.js n=1000000 size=64 ** 1.22 % ±0.72% ±0.95% ±1.22%
buffers/buffer-base64-decode-wrapped.js n=32 linesCount=524288 charsPerLine=76 -0.00 % ±0.33% ±0.43% ±0.55%
buffers/buffer-base64-decode.js size=8388608 n=32 -0.04 % ±0.07% ±0.09% ±0.11%
buffers/buffer-base64-encode.js n=32 len=67108864 -0.02 % ±0.05% ±0.06% ±0.08%
buffers/buffer-base64url-decode.js size=8388608 n=32 *** -0.12 % ±0.07% ±0.09% ±0.12%
buffers/buffer-base64url-encode.js n=32 len=67108864 -0.01 % ±0.05% ±0.06% ±0.08%
buffers/buffer-btoa.js n=1000000 size=1024 *** -1.79 % ±0.30% ±0.40% ±0.51%
buffers/buffer-btoa.js n=1000000 size=128 *** -2.21 % ±0.78% ±1.02% ±1.31%
buffers/buffer-btoa.js n=1000000 size=16 *** -2.45 % ±0.73% ±0.96% ±1.23%
buffers/buffer-btoa.js n=1000000 size=256 * -0.91 % ±0.78% ±1.03% ±1.32%
buffers/buffer-btoa.js n=1000000 size=32 *** -1.83 % ±0.92% ±1.22% ±1.56%
buffers/buffer-btoa.js n=1000000 size=64 *** -1.86 % ±0.80% ±1.06% ±1.36%
buffers/buffer-bytelength-buffer.js n=4000000 len=16 -0.03 % ±1.07% ±1.41% ±1.81%
buffers/buffer-bytelength-buffer.js n=4000000 len=2 -0.50 % ±1.00% ±1.32% ±1.69%
buffers/buffer-bytelength-buffer.js n=4000000 len=256 -0.73 % ±1.04% ±1.37% ±1.75%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='base64' type='four_bytes' 0.37 % ±1.24% ±1.64% ±2.10%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='base64' type='latin1' 0.90 % ±1.22% ±1.61% ±2.06%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='base64' type='one_byte' 0.76 % ±1.23% ±1.61% ±2.07%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='base64' type='three_bytes' -0.60 % ±1.23% ±1.62% ±2.07%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='base64' type='two_bytes' * 1.38 % ±1.29% ±1.70% ±2.18%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='utf8' type='four_bytes' *** 6.86 % ±0.53% ±0.70% ±0.89%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='utf8' type='latin1' *** 2.64 % ±1.06% ±1.40% ±1.79%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='utf8' type='one_byte' * 1.20 % ±0.96% ±1.27% ±1.62%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='utf8' type='three_bytes' *** 17.84 % ±0.54% ±0.71% ±0.91%
buffers/buffer-bytelength-string.js n=4000000 repeat=1 encoding='utf8' type='two_bytes' 0.72 % ±0.85% ±1.12% ±1.44%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='base64' type='four_bytes' -0.54 % ±1.28% ±1.69% ±2.16%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='base64' type='latin1' 0.53 % ±1.25% ±1.65% ±2.11%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='base64' type='one_byte' 0.06 % ±1.28% ±1.68% ±2.16%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='base64' type='three_bytes' 0.47 % ±1.23% ±1.62% ±2.08%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='base64' type='two_bytes' -0.60 % ±1.32% ±1.73% ±2.22%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='utf8' type='four_bytes' 0.04 % ±0.04% ±0.05% ±0.07%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='utf8' type='latin1' * 0.43 % ±0.40% ±0.52% ±0.67%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='utf8' type='one_byte' *** 3.77 % ±1.23% ±1.62% ±2.07%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='utf8' type='three_bytes' *** 2.41 % ±0.09% ±0.12% ±0.15%
buffers/buffer-bytelength-string.js n=4000000 repeat=16 encoding='utf8' type='two_bytes' *** 1.58 % ±0.09% ±0.12% ±0.16%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='base64' type='four_bytes' * 1.48 % ±1.25% ±1.65% ±2.11%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='base64' type='latin1' -0.11 % ±1.27% ±1.67% ±2.14%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='base64' type='one_byte' 0.47 % ±1.40% ±1.85% ±2.36%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='base64' type='three_bytes' 0.41 % ±1.12% ±1.47% ±1.89%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='base64' type='two_bytes' -0.19 % ±1.24% ±1.63% ±2.08%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='utf8' type='four_bytes' *** 2.11 % ±0.25% ±0.33% ±0.42%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='utf8' type='latin1' *** 4.28 % ±1.25% ±1.64% ±2.10%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='utf8' type='one_byte' *** 4.40 % ±1.48% ±1.95% ±2.50%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='utf8' type='three_bytes' *** 10.69 % ±0.83% ±1.10% ±1.41%
buffers/buffer-bytelength-string.js n=4000000 repeat=2 encoding='utf8' type='two_bytes' *** -1.53 % ±0.79% ±1.04% ±1.33%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='base64' type='four_bytes' 0.66 % ±1.30% ±1.72% ±2.20%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='base64' type='latin1' 0.04 % ±1.20% ±1.58% ±2.02%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='base64' type='one_byte' 0.09 % ±1.18% ±1.56% ±1.99%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='base64' type='three_bytes' ** 1.82 % ±1.23% ±1.62% ±2.07%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='base64' type='two_bytes' -0.35 % ±1.33% ±1.75% ±2.24%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='utf8' type='four_bytes' *** -0.04 % ±0.01% ±0.01% ±0.01%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='utf8' type='latin1' -0.14 % ±0.28% ±0.36% ±0.47%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='utf8' type='one_byte' 0.15 % ±0.64% ±0.85% ±1.09%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='utf8' type='three_bytes' *** 3.46 % ±0.04% ±0.05% ±0.06%
buffers/buffer-bytelength-string.js n=4000000 repeat=256 encoding='utf8' type='two_bytes' *** 1.90 % ±0.04% ±0.05% ±0.07%
buffers/buffer-compare-instance-method.js n=1000000 args=1 size=16 *** -7.30 % ±1.37% ±1.80% ±2.31%
buffers/buffer-compare-instance-method.js n=1000000 args=1 size=16386 *** -8.41 % ±1.55% ±2.04% ±2.62%
buffers/buffer-compare-instance-method.js n=1000000 args=1 size=4096 ** -2.59 % ±1.62% ±2.13% ±2.73%
buffers/buffer-compare-instance-method.js n=1000000 args=1 size=512 *** -4.22 % ±1.76% ±2.31% ±2.96%
buffers/buffer-compare-instance-method.js n=1000000 args=2 size=16 * 1.06 % ±1.01% ±1.33% ±1.70%
buffers/buffer-compare-instance-method.js n=1000000 args=2 size=16386 *** -9.11 % ±1.78% ±2.35% ±3.01%
buffers/buffer-compare-instance-method.js n=1000000 args=2 size=4096 * -1.83 % ±1.49% ±1.96% ±2.51%
buffers/buffer-compare-instance-method.js n=1000000 args=2 size=512 *** -2.28 % ±1.03% ±1.36% ±1.74%
buffers/buffer-compare-instance-method.js n=1000000 args=5 size=16 * 1.55 % ±1.35% ±1.78% ±2.28%
buffers/buffer-compare-instance-method.js n=1000000 args=5 size=16386 *** -7.65 % ±1.88% ±2.47% ±3.17%
buffers/buffer-compare-instance-method.js n=1000000 args=5 size=4096 *** -2.41 % ±1.40% ±1.85% ±2.37%
buffers/buffer-compare-instance-method.js n=1000000 args=5 size=512 ** -2.05 % ±1.37% ±1.80% ±2.31%
buffers/buffer-compare-offset.js n=1000000 size=16 method='offset' 0.69 % ±0.76% ±1.00% ±1.28%
buffers/buffer-compare-offset.js n=1000000 size=16 method='slice' *** -4.91 % ±0.67% ±0.88% ±1.12%
buffers/buffer-compare-offset.js n=1000000 size=16386 method='offset' *** -1.41 % ±0.79% ±1.04% ±1.34%
buffers/buffer-compare-offset.js n=1000000 size=16386 method='slice' *** -4.89 % ±0.77% ±1.02% ±1.30%
buffers/buffer-compare-offset.js n=1000000 size=4096 method='offset' *** -1.86 % ±0.86% ±1.13% ±1.45%
buffers/buffer-compare-offset.js n=1000000 size=4096 method='slice' *** -5.16 % ±0.71% ±0.94% ±1.20%
buffers/buffer-compare-offset.js n=1000000 size=512 method='offset' *** -1.48 % ±0.75% ±0.98% ±1.26%
buffers/buffer-compare-offset.js n=1000000 size=512 method='slice' *** -4.48 % ±0.75% ±0.99% ±1.26%
buffers/buffer-compare.js n=1000000 size=16 *** -3.84 % ±0.93% ±1.22% ±1.56%
buffers/buffer-compare.js n=1000000 size=16386 0.41 % ±0.49% ±0.65% ±0.83%
buffers/buffer-compare.js n=1000000 size=4096 *** -4.37 % ±0.98% ±1.29% ±1.65%
buffers/buffer-compare.js n=1000000 size=512 *** -3.49 % ±0.88% ±1.15% ±1.48%
buffers/buffer-concat-fill.js n=800000 extraSize=1 -0.05 % ±0.35% ±0.46% ±0.59%
buffers/buffer-concat-fill.js n=800000 extraSize=1024 -0.03 % ±0.32% ±0.42% ±0.53%
buffers/buffer-concat-fill.js n=800000 extraSize=256 0.16 % ±0.32% ±0.42% ±0.54%
buffers/buffer-concat.js n=800000 withTotalLength=0 pieceSize=1 pieces=16 -0.03 % ±0.51% ±0.68% ±0.87%
buffers/buffer-concat.js n=800000 withTotalLength=0 pieceSize=1 pieces=4 0.20 % ±0.75% ±0.98% ±1.26%
buffers/buffer-concat.js n=800000 withTotalLength=0 pieceSize=16 pieces=16 * -0.49 % ±0.45% ±0.60% ±0.76%
buffers/buffer-concat.js n=800000 withTotalLength=0 pieceSize=16 pieces=4 -0.17 % ±0.72% ±0.95% ±1.22%
buffers/buffer-concat.js n=800000 withTotalLength=0 pieceSize=256 pieces=16 * -0.35 % ±0.28% ±0.36% ±0.47%
buffers/buffer-concat.js n=800000 withTotalLength=0 pieceSize=256 pieces=4 0.10 % ±0.41% ±0.54% ±0.70%
buffers/buffer-concat.js n=800000 withTotalLength=1 pieceSize=1 pieces=16 *** 0.89 % ±0.47% ±0.62% ±0.80%
buffers/buffer-concat.js n=800000 withTotalLength=1 pieceSize=1 pieces=4 *** -1.31 % ±0.66% ±0.88% ±1.12%
buffers/buffer-concat.js n=800000 withTotalLength=1 pieceSize=16 pieces=16 *** 1.46 % ±0.51% ±0.67% ±0.86%
buffers/buffer-concat.js n=800000 withTotalLength=1 pieceSize=16 pieces=4 -0.71 % ±0.78% ±1.03% ±1.32%
buffers/buffer-concat.js n=800000 withTotalLength=1 pieceSize=256 pieces=16 *** -0.58 % ±0.28% ±0.37% ±0.48%
buffers/buffer-concat.js n=800000 withTotalLength=1 pieceSize=256 pieces=4 *** -0.83 % ±0.39% ±0.52% ±0.66%
buffers/buffer-copy.js n=6000000 partial='false' bytes=1024 0.49 % ±0.76% ±1.00% ±1.29%
buffers/buffer-copy.js n=6000000 partial='false' bytes=128 -0.32 % ±1.03% ±1.35% ±1.73%
buffers/buffer-copy.js n=6000000 partial='false' bytes=8 * 1.26 % ±1.02% ±1.34% ±1.71%
buffers/buffer-copy.js n=6000000 partial='true' bytes=1024 *** -0.54 % ±0.30% ±0.39% ±0.50%
buffers/buffer-copy.js n=6000000 partial='true' bytes=128 *** -6.72 % ±0.30% ±0.40% ±0.51%
buffers/buffer-copy.js n=6000000 partial='true' bytes=8 *** -7.99 % ±0.39% ±0.52% ±0.66%
buffers/buffer-creation.js n=600000 len=10 type='fast-alloc-fill' *** -4.50 % ±1.82% ±2.39% ±3.07%
buffers/buffer-creation.js n=600000 len=10 type='fast-alloc' *** -4.25 % ±1.93% ±2.54% ±3.25%
buffers/buffer-creation.js n=600000 len=10 type='fast-allocUnsafe' -1.91 % ±2.19% ±2.88% ±3.70%
buffers/buffer-creation.js n=600000 len=10 type='slow-allocUnsafe' *** -2.67 % ±1.39% ±1.82% ±2.34%
buffers/buffer-creation.js n=600000 len=1024 type='fast-alloc-fill' *** -1.17 % ±0.31% ±0.40% ±0.52%
buffers/buffer-creation.js n=600000 len=1024 type='fast-alloc' *** -1.10 % ±0.31% ±0.41% ±0.53%
buffers/buffer-creation.js n=600000 len=1024 type='fast-allocUnsafe' *** -1.20 % ±0.59% ±0.77% ±0.99%
buffers/buffer-creation.js n=600000 len=1024 type='slow-allocUnsafe' *** -1.57 % ±0.31% ±0.40% ±0.52%
buffers/buffer-creation.js n=600000 len=4096 type='fast-alloc-fill' * -0.38 % ±0.31% ±0.40% ±0.52%
buffers/buffer-creation.js n=600000 len=4096 type='fast-alloc' -0.11 % ±0.30% ±0.40% ±0.51%
buffers/buffer-creation.js n=600000 len=4096 type='fast-allocUnsafe' *** -1.41 % ±0.30% ±0.40% ±0.51%
buffers/buffer-creation.js n=600000 len=4096 type='slow-allocUnsafe' *** -1.56 % ±0.33% ±0.44% ±0.56%
buffers/buffer-creation.js n=600000 len=8192 type='fast-alloc-fill' -0.14 % ±0.28% ±0.37% ±0.47%
buffers/buffer-creation.js n=600000 len=8192 type='fast-alloc' 0.13 % ±0.31% ±0.41% ±0.53%
buffers/buffer-creation.js n=600000 len=8192 type='fast-allocUnsafe' *** -1.33 % ±0.33% ±0.44% ±0.56%
buffers/buffer-creation.js n=600000 len=8192 type='slow-allocUnsafe' *** -0.79 % ±0.35% ±0.46% ±0.60%
buffers/buffer-equals.js n=1000000 difflen='false' size=0 -0.34 % ±0.73% ±0.96% ±1.23%
buffers/buffer-equals.js n=1000000 difflen='false' size=16386 -0.40 % ±0.48% ±0.63% ±0.80%
buffers/buffer-equals.js n=1000000 difflen='false' size=512 *** -3.35 % ±0.80% ±1.06% ±1.35%
buffers/buffer-equals.js n=1000000 difflen='true' size=0 -0.51 % ±0.89% ±1.17% ±1.50%
buffers/buffer-equals.js n=1000000 difflen='true' size=16386 0.58 % ±1.09% ±1.43% ±1.84%
buffers/buffer-equals.js n=1000000 difflen='true' size=512 0.43 % ±0.59% ±0.78% ±1.00%
buffers/buffer-fill.js n=20000 size=65536 type='fill("")' *** -6.27 % ±1.49% ±1.96% ±2.52%
buffers/buffer-fill.js n=20000 size=65536 type='fill("t", "utf8")' *** -7.11 % ±1.74% ±2.30% ±2.95%
buffers/buffer-fill.js n=20000 size=65536 type='fill("t", 0, "utf8")' *** -10.27 % ±1.71% ±2.26% ±2.89%
buffers/buffer-fill.js n=20000 size=65536 type='fill("t", 0)' 0.39 % ±0.78% ±1.02% ±1.31%
buffers/buffer-fill.js n=20000 size=65536 type='fill("t")' *** -4.41 % ±1.72% ±2.27% ±2.91%
buffers/buffer-fill.js n=20000 size=65536 type='fill("test")' *** -7.51 % ±1.79% ±2.36% ±3.02%
buffers/buffer-fill.js n=20000 size=65536 type='fill(0)' ** -0.88 % ±0.64% ±0.85% ±1.09%
buffers/buffer-fill.js n=20000 size=65536 type='fill(100)' -0.35 % ±0.76% ±1.00% ±1.29%
buffers/buffer-fill.js n=20000 size=65536 type='fill(400)' * 0.89 % ±0.76% ±1.00% ±1.29%
buffers/buffer-fill.js n=20000 size=65536 type='fill(Buffer.alloc(1), 0)' *** -6.51 % ±1.59% ±2.09% ±2.69%
buffers/buffer-fill.js n=20000 size=8192 type='fill("")' *** -21.72 % ±5.12% ±6.75% ±8.65%
buffers/buffer-fill.js n=20000 size=8192 type='fill("t", "utf8")' *** -20.96 % ±4.54% ±5.98% ±7.67%
buffers/buffer-fill.js n=20000 size=8192 type='fill("t", 0, "utf8")' *** -18.56 % ±4.86% ±6.41% ±8.21%
buffers/buffer-fill.js n=20000 size=8192 type='fill("t", 0)' *** -23.83 % ±4.25% ±5.61% ±7.19%
buffers/buffer-fill.js n=20000 size=8192 type='fill("t")' *** -24.04 % ±4.83% ±6.37% ±8.16%
buffers/buffer-fill.js n=20000 size=8192 type='fill("test")' *** -25.09 % ±4.10% ±5.40% ±6.93%
buffers/buffer-fill.js n=20000 size=8192 type='fill(0)' * 0.88 % ±0.72% ±0.95% ±1.22%
buffers/buffer-fill.js n=20000 size=8192 type='fill(100)' *** 2.26 % ±1.01% ±1.33% ±1.70%
buffers/buffer-fill.js n=20000 size=8192 type='fill(400)' 0.37 % ±1.37% ±1.81% ±2.32%
buffers/buffer-fill.js n=20000 size=8192 type='fill(Buffer.alloc(1), 0)' *** -8.16 % ±3.87% ±5.10% ±6.53%
buffers/buffer-from.js n=800000 len=100 source='array' -0.09 % ±0.45% ±0.59% ±0.76%
buffers/buffer-from.js n=800000 len=100 source='arraybuffer-middle' *** -3.70 % ±1.73% ±2.28% ±2.92%
buffers/buffer-from.js n=800000 len=100 source='arraybuffer' * -2.12 % ±1.72% ±2.27% ±2.91%
buffers/buffer-from.js n=800000 len=100 source='buffer' *** -1.92 % ±1.09% ±1.44% ±1.84%
buffers/buffer-from.js n=800000 len=100 source='object' *** -2.68 % ±1.44% ±1.90% ±2.43%
buffers/buffer-from.js n=800000 len=100 source='string-base64' *** -3.63 % ±0.49% ±0.65% ±0.83%
buffers/buffer-from.js n=800000 len=100 source='string-utf8' *** -4.41 % ±0.81% ±1.06% ±1.36%
buffers/buffer-from.js n=800000 len=100 source='string' *** -3.62 % ±0.78% ±1.03% ±1.32%
buffers/buffer-from.js n=800000 len=100 source='uint16array' ** 1.27 % ±0.84% ±1.10% ±1.41%
buffers/buffer-from.js n=800000 len=100 source='uint8array' -1.11 % ±1.16% ±1.52% ±1.95%
buffers/buffer-from.js n=800000 len=2048 source='array' *** 0.29 % ±0.10% ±0.13% ±0.16%
buffers/buffer-from.js n=800000 len=2048 source='arraybuffer-middle' *** -3.12 % ±1.71% ±2.25% ±2.88%
buffers/buffer-from.js n=800000 len=2048 source='arraybuffer' -1.24 % ±1.88% ±2.47% ±3.17%
buffers/buffer-from.js n=800000 len=2048 source='buffer' *** -0.67 % ±0.37% ±0.48% ±0.62%
buffers/buffer-from.js n=800000 len=2048 source='object' * -1.99 % ±1.79% ±2.36% ±3.03%
buffers/buffer-from.js n=800000 len=2048 source='string-base64' 0.21 % ±0.30% ±0.39% ±0.51%
buffers/buffer-from.js n=800000 len=2048 source='string-utf8' -0.14 % ±0.35% ±0.46% ±0.59%
buffers/buffer-from.js n=800000 len=2048 source='string' *** -1.08 % ±0.37% ±0.49% ±0.63%
buffers/buffer-from.js n=800000 len=2048 source='uint16array' 0.31 % ±0.32% ±0.42% ±0.54%
buffers/buffer-from.js n=800000 len=2048 source='uint8array' *** 0.93 % ±0.42% ±0.55% ±0.71%
buffers/buffer-hex-decode.js n=1000000 len=1024 *** -8.26 % ±0.22% ±0.28% ±0.36%
buffers/buffer-hex-decode.js n=1000000 len=64 *** 3.34 % ±0.41% ±0.53% ±0.68%
buffers/buffer-hex-encode.js n=1000000 len=1024 *** -0.40 % ±0.06% ±0.08% ±0.10%
buffers/buffer-hex-encode.js n=1000000 len=64 *** -4.58 % ±0.39% ±0.51% ±0.65%
buffers/buffer-indexof-number.js n=1000000 value=64 -0.51 % ±1.23% ±1.61% ±2.07%
buffers/buffer-indexof.js n=50000 type='buffer' encoding='undefined' search='--l' 0.15 % ±0.17% ±0.22% ±0.28%
buffers/buffer-indexof.js n=50000 type='buffer' encoding='undefined' search='@' -3.04 % ±4.45% ±5.86% ±7.51%
buffers/buffer-indexof.js n=50000 type='buffer' encoding='undefined' search='</i> to the Caterpillar' *** -0.17 % ±0.07% ±0.09% ±0.11%
buffers/buffer-indexof.js n=50000 type='buffer' encoding='undefined' search='aaaaaaaaaaaaaaaaa' *** 0.19 % ±0.04% ±0.06% ±0.07%
buffers/buffer-indexof.js n=50000 type='buffer' encoding='undefined' search='Alice' *** -12.41 % ±5.10% ±6.72% ±8.60%
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buffers/buffer-read.js n=1000000 type='BigInt64LE' buffer='fast' * -2.98 % ±2.32% ±3.06% ±3.92%
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buffers/buffer-read.js n=1000000 type='Int16LE' buffer='fast' *** -18.98 % ±8.08% ±10.65% ±13.64%
buffers/buffer-read.js n=1000000 type='Int32BE' buffer='fast' -2.46 % ±8.75% ±11.52% ±14.76%
buffers/buffer-read.js n=1000000 type='Int32LE' buffer='fast' * -10.89 % ±8.27% ±10.89% ±13.96%
buffers/buffer-read.js n=1000000 type='Int8' buffer='fast' *** -30.25 % ±7.24% ±9.54% ±12.23%
buffers/buffer-read.js n=1000000 type='UInt16BE' buffer='fast' *** -30.15 % ±6.73% ±8.87% ±11.36%
buffers/buffer-read.js n=1000000 type='UInt16LE' buffer='fast' *** -23.04 % ±7.65% ±10.07% ±12.90%
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buffers/buffer-read.js n=1000000 type='UInt32LE' buffer='fast' * -9.17 % ±7.91% ±10.41% ±13.34%
buffers/buffer-read.js n=1000000 type='UInt8' buffer='fast' *** -23.47 % ±7.11% ±9.36% ±11.99%
buffers/buffer-slice.js n=1000000 type='fast' ** -2.12 % ±1.47% ±1.94% ±2.48%
buffers/buffer-slice.js n=1000000 type='slow' ** -2.59 % ±1.63% ±2.15% ±2.75%
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buffers/buffer-swap.js n=1000000 len=1024 method='swap64' aligned='true' *** -1.43 % ±0.21% ±0.28% ±0.36%
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buffers/buffer-swap.js n=1000000 len=64 method='swap16' aligned='true' 0.45 % ±0.57% ±0.75% ±0.97%
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buffers/buffer-swap.js n=1000000 len=64 method='swap32' aligned='true' 0.03 % ±0.29% ±0.39% ±0.49%
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buffers/buffer-swap.js n=1000000 len=64 method='swap64' aligned='true' -0.07 % ±0.59% ±0.78% ±1.00%
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buffers/buffer-swap.js n=1000000 len=768 method='swap16' aligned='true' *** -3.04 % ±0.32% ±0.42% ±0.53%
buffers/buffer-swap.js n=1000000 len=768 method='swap32' aligned='false' *** -2.51 % ±0.25% ±0.33% ±0.42%
buffers/buffer-swap.js n=1000000 len=768 method='swap32' aligned='true' *** -2.05 % ±0.24% ±0.32% ±0.41%
buffers/buffer-swap.js n=1000000 len=768 method='swap64' aligned='false' *** -3.03 % ±0.33% ±0.43% ±0.55%
buffers/buffer-swap.js n=1000000 len=768 method='swap64' aligned='true' *** -2.17 % ±0.28% ±0.36% ±0.47%
buffers/buffer-swap.js n=1000000 len=8192 method='swap16' aligned='false' *** -0.59 % ±0.10% ±0.14% ±0.17%
buffers/buffer-swap.js n=1000000 len=8192 method='swap16' aligned='true' *** -0.52 % ±0.10% ±0.13% ±0.16%
buffers/buffer-swap.js n=1000000 len=8192 method='swap32' aligned='false' *** -0.22 % ±0.02% ±0.03% ±0.04%
buffers/buffer-swap.js n=1000000 len=8192 method='swap32' aligned='true' *** -0.10 % ±0.02% ±0.03% ±0.04%
buffers/buffer-swap.js n=1000000 len=8192 method='swap64' aligned='false' *** -0.45 % ±0.05% ±0.07% ±0.09%
buffers/buffer-swap.js n=1000000 len=8192 method='swap64' aligned='true' *** -0.32 % ±0.04% ±0.05% ±0.07%
buffers/buffer-tojson.js len=0 n=10000 -3.06 % ±9.74% ±12.82% ±16.43%
buffers/buffer-tojson.js len=256 n=10000 *** -6.68 % ±2.86% ±3.77% ±4.83%
buffers/buffer-tojson.js len=4096 n=10000 *** -3.43 % ±0.86% ±1.13% ±1.45%
buffers/buffer-tostring.js n=1000000 len=1 args=0 encoding='' 0.71 % ±1.15% ±1.51% ±1.94%
buffers/buffer-tostring.js n=1000000 len=1 args=1 encoding='ascii' -0.31 % ±1.35% ±1.77% ±2.27%
buffers/buffer-tostring.js n=1000000 len=1 args=1 encoding='hex' *** 8.00 % ±1.10% ±1.45% ±1.86%
buffers/buffer-tostring.js n=1000000 len=1 args=1 encoding='latin1' *** 6.58 % ±1.76% ±2.31% ±2.97%
buffers/buffer-tostring.js n=1000000 len=1 args=1 encoding='UCS-2' 0.68 % ±0.82% ±1.09% ±1.39%
buffers/buffer-tostring.js n=1000000 len=1 args=1 encoding='utf8' *** 2.76 % ±1.22% ±1.61% ±2.06%
buffers/buffer-tostring.js n=1000000 len=1 args=3 encoding='ascii' *** -2.62 % ±1.34% ±1.76% ±2.26%
buffers/buffer-tostring.js n=1000000 len=1 args=3 encoding='hex' *** 4.47 % ±1.10% ±1.45% ±1.85%
buffers/buffer-tostring.js n=1000000 len=1 args=3 encoding='latin1' *** 8.43 % ±1.51% ±1.99% ±2.55%
buffers/buffer-tostring.js n=1000000 len=1 args=3 encoding='UCS-2' *** 3.74 % ±0.92% ±1.21% ±1.55%
buffers/buffer-tostring.js n=1000000 len=1 args=3 encoding='utf8' -1.02 % ±1.27% ±1.68% ±2.15%
buffers/buffer-tostring.js n=1000000 len=1024 args=0 encoding='' *** -4.19 % ±0.37% ±0.48% ±0.62%
buffers/buffer-tostring.js n=1000000 len=1024 args=1 encoding='ascii' *** -6.06 % ±0.45% ±0.59% ±0.76%
buffers/buffer-tostring.js n=1000000 len=1024 args=1 encoding='hex' *** -2.12 % ±0.16% ±0.21% ±0.27%
buffers/buffer-tostring.js n=1000000 len=1024 args=1 encoding='latin1' *** -5.43 % ±0.53% ±0.69% ±0.89%
buffers/buffer-tostring.js n=1000000 len=1024 args=1 encoding='UCS-2' *** -3.45 % ±0.41% ±0.54% ±0.69%
buffers/buffer-tostring.js n=1000000 len=1024 args=1 encoding='utf8' *** -4.26 % ±0.36% ±0.47% ±0.60%
buffers/buffer-tostring.js n=1000000 len=1024 args=3 encoding='ascii' *** -5.33 % ±0.49% ±0.65% ±0.83%
buffers/buffer-tostring.js n=1000000 len=1024 args=3 encoding='hex' *** -1.29 % ±0.42% ±0.56% ±0.71%
buffers/buffer-tostring.js n=1000000 len=1024 args=3 encoding='latin1' *** -5.42 % ±0.56% ±0.73% ±0.94%
buffers/buffer-tostring.js n=1000000 len=1024 args=3 encoding='UCS-2' *** -2.11 % ±0.44% ±0.58% ±0.74%
buffers/buffer-tostring.js n=1000000 len=1024 args=3 encoding='utf8' *** -4.34 % ±0.40% ±0.53% ±0.68%
buffers/buffer-tostring.js n=1000000 len=64 args=0 encoding='' *** -2.16 % ±0.85% ±1.12% ±1.43%
buffers/buffer-tostring.js n=1000000 len=64 args=1 encoding='ascii' *** -1.60 % ±0.83% ±1.09% ±1.40%
buffers/buffer-tostring.js n=1000000 len=64 args=1 encoding='hex' *** 8.25 % ±0.59% ±0.78% ±1.00%
buffers/buffer-tostring.js n=1000000 len=64 args=1 encoding='latin1' *** 5.97 % ±1.15% ±1.52% ±1.95%
buffers/buffer-tostring.js n=1000000 len=64 args=1 encoding='UCS-2' 0.14 % ±0.74% ±0.98% ±1.25%
buffers/buffer-tostring.js n=1000000 len=64 args=1 encoding='utf8' *** 2.07 % ±0.88% ±1.16% ±1.48%
buffers/buffer-tostring.js n=1000000 len=64 args=3 encoding='ascii' *** -4.91 % ±0.84% ±1.11% ±1.42%
buffers/buffer-tostring.js n=1000000 len=64 args=3 encoding='hex' *** 8.31 % ±0.59% ±0.78% ±0.99%
buffers/buffer-tostring.js n=1000000 len=64 args=3 encoding='latin1' *** 6.58 % ±0.98% ±1.29% ±1.65%
buffers/buffer-tostring.js n=1000000 len=64 args=3 encoding='UCS-2' 0.67 % ±0.67% ±0.89% ±1.14%
buffers/buffer-tostring.js n=1000000 len=64 args=3 encoding='utf8' *** 2.20 % ±0.76% ±1.01% ±1.29%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ascii' fromEncoding='ascii' *** -1.20 % ±0.64% ±0.85% ±1.08%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ascii' fromEncoding='latin1' *** -1.76 % ±0.66% ±0.87% ±1.12%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ascii' fromEncoding='ucs2' -0.75 % ±0.93% ±1.23% ±1.57%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ascii' fromEncoding='utf8' *** -1.55 % ±0.78% ±1.03% ±1.32%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='latin1' fromEncoding='ascii' *** -2.00 % ±0.63% ±0.83% ±1.07%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='latin1' fromEncoding='latin1' *** -2.79 % ±0.46% ±0.61% ±0.78%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='latin1' fromEncoding='ucs2' *** -1.50 % ±0.87% ±1.15% ±1.47%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='latin1' fromEncoding='utf8' *** -1.07 % ±0.63% ±0.83% ±1.06%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ucs2' fromEncoding='ascii' 0.37 % ±0.75% ±0.99% ±1.26%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ucs2' fromEncoding='latin1' -0.19 % ±0.76% ±1.00% ±1.28%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ucs2' fromEncoding='ucs2' *** -1.51 % ±0.73% ±0.96% ±1.22%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='ucs2' fromEncoding='utf8' -0.18 % ±0.70% ±0.92% ±1.18%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='utf8' fromEncoding='ascii' ** -0.86 % ±0.62% ±0.82% ±1.04%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='utf8' fromEncoding='latin1' *** -2.16 % ±0.51% ±0.67% ±0.86%
buffers/buffer-transcode.js n=100000 length=1 toEncoding='utf8' fromEncoding='utf8' 0.02 % ±0.54% ±0.71% ±0.90%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ascii' fromEncoding='ascii' *** -2.62 % ±0.65% ±0.86% ±1.10%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ascii' fromEncoding='latin1' *** -2.00 % ±0.68% ±0.89% ±1.14%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ascii' fromEncoding='ucs2' * -0.88 % ±0.73% ±0.96% ±1.22%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ascii' fromEncoding='utf8' ** -1.09 % ±0.79% ±1.04% ±1.33%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='latin1' fromEncoding='ascii' *** -2.14 % ±0.65% ±0.86% ±1.10%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='latin1' fromEncoding='latin1' *** -2.59 % ±0.53% ±0.70% ±0.89%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='latin1' fromEncoding='ucs2' *** -1.95 % ±0.70% ±0.92% ±1.18%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='latin1' fromEncoding='utf8' *** -1.12 % ±0.62% ±0.82% ±1.05%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ucs2' fromEncoding='ascii' 0.34 % ±0.74% ±0.98% ±1.25%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ucs2' fromEncoding='latin1' ** -1.31 % ±0.78% ±1.03% ±1.32%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ucs2' fromEncoding='ucs2' *** -1.43 % ±0.69% ±0.91% ±1.17%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='ucs2' fromEncoding='utf8' ** -1.23 % ±0.75% ±0.98% ±1.26%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='utf8' fromEncoding='ascii' * -0.86 % ±0.75% ±0.99% ±1.27%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='utf8' fromEncoding='latin1' *** -2.70 % ±0.66% ±0.88% ±1.12%
buffers/buffer-transcode.js n=100000 length=10 toEncoding='utf8' fromEncoding='utf8' * -0.83 % ±0.72% ±0.95% ±1.22%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ascii' fromEncoding='ascii' * -0.49 % ±0.42% ±0.55% ±0.70%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ascii' fromEncoding='latin1' *** -1.42 % ±0.46% ±0.61% ±0.78%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ascii' fromEncoding='ucs2' 0.08 % ±0.12% ±0.15% ±0.20%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ascii' fromEncoding='utf8' *** -0.94 % ±0.55% ±0.72% ±0.92%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='latin1' fromEncoding='ascii' ** -0.54 % ±0.40% ±0.52% ±0.67%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='latin1' fromEncoding='latin1' *** -1.33 % ±0.41% ±0.54% ±0.69%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='latin1' fromEncoding='ucs2' *** 0.32 % ±0.10% ±0.13% ±0.16%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='latin1' fromEncoding='utf8' -0.15 % ±0.41% ±0.54% ±0.69%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ucs2' fromEncoding='ascii' -0.29 % ±0.43% ±0.57% ±0.73%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ucs2' fromEncoding='latin1' -0.15 % ±0.42% ±0.56% ±0.71%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ucs2' fromEncoding='ucs2' *** -1.28 % ±0.36% ±0.48% ±0.61%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='ucs2' fromEncoding='utf8' -0.35 % ±0.43% ±0.56% ±0.72%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='utf8' fromEncoding='ascii' -0.05 % ±0.36% ±0.47% ±0.60%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='utf8' fromEncoding='latin1' 0.00 % ±0.34% ±0.45% ±0.58%
buffers/buffer-transcode.js n=100000 length=1000 toEncoding='utf8' fromEncoding='utf8' 0.25 % ±0.35% ±0.46% ±0.59%
buffers/buffer-write-string-short.js n=1000000 len=1 encoding='ascii' *** -4.28 % ±2.14% ±2.82% ±3.61%
buffers/buffer-write-string-short.js n=1000000 len=1 encoding='latin1' *** -3.81 % ±1.90% ±2.51% ±3.21%
buffers/buffer-write-string-short.js n=1000000 len=1 encoding='utf8' * -2.04 % ±1.90% ±2.50% ±3.20%
buffers/buffer-write-string-short.js n=1000000 len=16 encoding='ascii' *** -6.92 % ±2.08% ±2.74% ±3.51%
buffers/buffer-write-string-short.js n=1000000 len=16 encoding='latin1' *** -5.24 % ±1.93% ±2.54% ±3.26%
buffers/buffer-write-string-short.js n=1000000 len=16 encoding='utf8' ** -3.32 % ±2.01% ±2.65% ±3.39%
buffers/buffer-write-string-short.js n=1000000 len=32 encoding='ascii' *** -6.74 % ±2.20% ±2.89% ±3.70%
buffers/buffer-write-string-short.js n=1000000 len=32 encoding='latin1' *** -5.84 % ±1.97% ±2.59% ±3.32%
buffers/buffer-write-string-short.js n=1000000 len=32 encoding='utf8' ** -2.64 % ±1.94% ±2.55% ±3.27%
buffers/buffer-write-string-short.js n=1000000 len=8 encoding='ascii' *** -5.09 % ±2.21% ±2.91% ±3.73%
buffers/buffer-write-string-short.js n=1000000 len=8 encoding='latin1' *** -5.35 % ±1.76% ±2.31% ±2.97%
buffers/buffer-write-string-short.js n=1000000 len=8 encoding='utf8' *** -3.51 % ±1.59% ±2.09% ±2.68%
buffers/buffer-write-string.js n=1000000 len=2048 args='' encoding='' *** 2.01 % ±0.22% ±0.30% ±0.38%
buffers/buffer-write-string.js n=1000000 len=2048 args='' encoding='ascii' *** -11.61 % ±0.47% ±0.62% ±0.80%
buffers/buffer-write-string.js n=1000000 len=2048 args='' encoding='hex' *** -1.34 % ±0.08% ±0.10% ±0.13%
buffers/buffer-write-string.js n=1000000 len=2048 args='' encoding='latin1' *** 4.08 % ±0.72% ±0.95% ±1.22%
buffers/buffer-write-string.js n=1000000 len=2048 args='' encoding='utf16le' *** 3.44 % ±0.61% ±0.81% ±1.03%
buffers/buffer-write-string.js n=1000000 len=2048 args='' encoding='utf8' *** 3.12 % ±0.20% ±0.26% ±0.34%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset' encoding='' ** -0.92 % ±0.69% ±0.91% ±1.17%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset' encoding='ascii' -1.11 % ±1.67% ±2.20% ±2.82%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset' encoding='hex' *** -2.64 % ±0.20% ±0.27% ±0.35%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset' encoding='latin1' *** -4.95 % ±1.60% ±2.11% ±2.71%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset' encoding='utf16le' *** 1.55 % ±0.86% ±1.13% ±1.45%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset' encoding='utf8' ** -1.06 % ±0.70% ±0.93% ±1.19%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset+length' encoding='' * -0.58 % ±0.50% ±0.65% ±0.84%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset+length' encoding='ascii' *** -8.70 % ±1.22% ±1.60% ±2.05%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset+length' encoding='hex' *** -0.91 % ±0.12% ±0.15% ±0.19%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset+length' encoding='latin1' *** 5.77 % ±1.25% ±1.64% ±2.10%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset+length' encoding='utf16le' *** 4.17 % ±0.97% ±1.28% ±1.64%
buffers/buffer-write-string.js n=1000000 len=2048 args='offset+length' encoding='utf8' *** -1.21 % ±0.54% ±0.71% ±0.91%
buffers/buffer-write.js n=1000000 type='BigInt64BE' buffer='fast' *** -2.31 % ±0.77% ±1.02% ±1.30%
buffers/buffer-write.js n=1000000 type='BigInt64LE' buffer='fast' *** -1.93 % ±0.71% ±0.94% ±1.20%
buffers/buffer-write.js n=1000000 type='BigUInt64BE' buffer='fast' *** -2.55 % ±0.73% ±0.95% ±1.22%
buffers/buffer-write.js n=1000000 type='BigUInt64LE' buffer='fast' ** -1.01 % ±0.64% ±0.84% ±1.08%
buffers/buffer-write.js n=1000000 type='DoubleBE' buffer='fast' -5.04 % ±6.10% ±8.03% ±10.29%
buffers/buffer-write.js n=1000000 type='DoubleLE' buffer='fast' -3.86 % ±6.08% ±8.01% ±10.26%
buffers/buffer-write.js n=1000000 type='FloatBE' buffer='fast' -5.81 % ±6.76% ±8.91% ±11.41%
buffers/buffer-write.js n=1000000 type='FloatLE' buffer='fast' * -8.23 % ±6.52% ±8.59% ±11.01%
buffers/buffer-write.js n=1000000 type='Int16BE' buffer='fast' -0.64 % ±6.04% ±7.96% ±10.19%
buffers/buffer-write.js n=1000000 type='Int16LE' buffer='fast' ** -8.35 % ±5.85% ±7.70% ±9.87%
buffers/buffer-write.js n=1000000 type='Int32BE' buffer='fast' * -8.17 % ±6.84% ±9.01% ±11.54%
buffers/buffer-write.js n=1000000 type='Int32LE' buffer='fast' -6.70 % ±6.86% ±9.03% ±11.57%
buffers/buffer-write.js n=1000000 type='Int8' buffer='fast' *** -16.44 % ±5.42% ±7.14% ±9.15%
buffers/buffer-write.js n=1000000 type='IntBE' buffer='fast' *** -10.08 % ±4.06% ±5.34% ±6.84%
buffers/buffer-write.js n=1000000 type='IntLE' buffer='fast' *** -7.77 % ±4.33% ±5.70% ±7.30%
buffers/buffer-write.js n=1000000 type='UInt16BE' buffer='fast' 0.19 % ±6.13% ±8.07% ±10.34%
buffers/buffer-write.js n=1000000 type='UInt16LE' buffer='fast' -0.77 % ±6.19% ±8.15% ±10.44%
buffers/buffer-write.js n=1000000 type='UInt32BE' buffer='fast' -2.71 % ±5.18% ±6.82% ±8.73%
buffers/buffer-write.js n=1000000 type='UInt32LE' buffer='fast' -3.89 % ±5.03% ±6.62% ±8.48%
buffers/buffer-write.js n=1000000 type='UInt8' buffer='fast' ** -9.44 % ±6.21% ±8.18% ±10.48%
buffers/buffer-write.js n=1000000 type='UIntBE' buffer='fast' *** -9.69 % ±4.84% ±6.38% ±8.17%
buffers/buffer-write.js n=1000000 type='UIntLE' buffer='fast' *** -17.00 % ±5.07% ±6.68% ±8.56%
buffers/buffer-zero.js type='buffer' n=1000000 *** -2.42 % ±0.94% ±1.24% ±1.59%
buffers/buffer-zero.js type='string' n=1000000 *** -3.78 % ±1.47% ±1.94% ±2.49%
buffers/dataview-set.js n=1000000 type='Float32BE' ** 6.33 % ±3.94% ±5.19% ±6.65%
buffers/dataview-set.js n=1000000 type='Float32LE' 1.34 % ±3.72% ±4.90% ±6.28%
buffers/dataview-set.js n=1000000 type='Float64BE' -1.35 % ±3.59% ±4.73% ±6.06%
buffers/dataview-set.js n=1000000 type='Float64LE' 0.15 % ±3.52% ±4.64% ±5.95%
buffers/dataview-set.js n=1000000 type='Int16BE' -0.94 % ±1.68% ±2.21% ±2.84%
buffers/dataview-set.js n=1000000 type='Int16LE' 0.48 % ±1.67% ±2.20% ±2.82%
buffers/dataview-set.js n=1000000 type='Int32BE' 0.68 % ±1.38% ±1.81% ±2.32%
buffers/dataview-set.js n=1000000 type='Int32LE' 0.04 % ±1.47% ±1.94% ±2.49%
buffers/dataview-set.js n=1000000 type='Int8' 0.78 % ±0.84% ±1.10% ±1.41%
buffers/dataview-set.js n=1000000 type='Uint16BE' -0.86 % ±1.18% ±1.55% ±1.99%
buffers/dataview-set.js n=1000000 type='Uint16LE' 0.11 % ±1.20% ±1.58% ±2.03%
buffers/dataview-set.js n=1000000 type='Uint32BE' -0.25 % ±1.07% ±1.41% ±1.81%
buffers/dataview-set.js n=1000000 type='Uint32LE' 0.09 % ±1.09% ±1.44% ±1.84%
buffers/dataview-set.js n=1000000 type='Uint8' -0.04 % ±0.90% ±1.18% ±1.52%
Be aware that when doing many comparisons the risk of a false-positive
result increases. In this case, there are 471 comparisons, you can thus
expect the following amount of false-positive results:
23.55 false positives, when considering a 5% risk acceptance (*, **, ***),
4.71 false positives, when considering a 1% risk acceptance (**, ***),
0.47 false positives, when considering a 0.1% risk acceptance (***)
</summary>
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The jenkins UI just says:
when I click on the links, not sure how to fix it, anyone have permissions that can take a peek for me? |
Removes the reliance on prototype bound methods internally so that Uint8Arrays can be set as the bound `this` value when calling the various Buffer methods. Introduces some additional tamper protection by removing internal reliance on writable properties. Fixes: nodejs#56577
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addaleax
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Jan 20, 2026
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Landed in dc04bf6 |
aduh95
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Jan 22, 2026
Removes the reliance on prototype bound methods internally so that Uint8Arrays can be set as the bound `this` value when calling the various Buffer methods. Introduces some additional tamper protection by removing internal reliance on writable properties. Fixes: #56577 PR-URL: #56578 Reviewed-By: Anna Henningsen <anna@addaleax.net>
islandryu
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Jan 25, 2026
Removes the reliance on prototype bound methods internally so that Uint8Arrays can be set as the bound `this` value when calling the various Buffer methods. Introduces some additional tamper protection by removing internal reliance on writable properties. Fixes: nodejs#56577 PR-URL: nodejs#56578 Reviewed-By: Anna Henningsen <anna@addaleax.net>
tmeijn
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Jan 27, 2026
This MR contains the following updates: | Package | Update | Change | |---|---|---| | [node](https://nodejs.org) ([source](https://github.com/nodejs/node)) | minor | `25.4.0` → `25.5.0` | MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot). **Proposed changes to behavior should be submitted there as MRs.** --- ### Release Notes <details> <summary>nodejs/node (node)</summary> ### [`v25.5.0`](https://github.com/nodejs/node/releases/tag/v25.5.0): 2026-01-26, Version 25.5.0 (Current), @​aduh95 [Compare Source](nodejs/node@v25.4.0...v25.5.0) ##### Notable Changes - \[[`99a4e51f93`](nodejs/node@99a4e51f93)] - **crypto**: update root certificates to NSS 3.119 (Node.js GitHub Bot) [#​61419](nodejs/node#61419) - \[[`fbe4da5725`](nodejs/node@fbe4da5725)] - **(SEMVER-MINOR)** **deps**: add LIEF as a dependency (Joyee Cheung) [#​61167](nodejs/node#61167) - \[[`0feab0f083`](nodejs/node@0feab0f083)] - **(SEMVER-MINOR)** **deps**: add tools and scripts to pull LIEF as a dependency (Joyee Cheung) [#​61167](nodejs/node#61167) - \[[`e91b296001`](nodejs/node@e91b296001)] - **(SEMVER-MINOR)** **fs**: add ignore option to fs.watch (Matteo Collina) [#​61433](nodejs/node#61433) - \[[`b351910af1`](nodejs/node@b351910af1)] - **(SEMVER-MINOR)** **sea**: add `--build-sea` to generate SEA directly with Node.js binary (Joyee Cheung) [#​61167](nodejs/node#61167) - \[[`957292e233`](nodejs/node@957292e233)] - **(SEMVER-MINOR)** **sea**: split sea binary manipulation code (Joyee Cheung) [#​61167](nodejs/node#61167) - \[[`f289817ff8`](nodejs/node@f289817ff8)] - **(SEMVER-MINOR)** **sqlite**: enable defensive mode by default (Bart Louwers) [#​61266](nodejs/node#61266) - \[[`069f3603e2`](nodejs/node@069f3603e2)] - **(SEMVER-MINOR)** **sqlite**: add sqlite prepare options args (Guilherme Araújo) [#​61311](nodejs/node#61311) - \[[`5a984b9a09`](nodejs/node@5a984b9a09)] - **src**: use node- prefix on thread names (Stewart X Addison) [#​61307](nodejs/node#61307) - \[[`75c06bc2a8`](nodejs/node@75c06bc2a8)] - **(SEMVER-MINOR)** **test**: migrate to `--build-sea` in existing SEA tests (Joyee Cheung) [#​61167](nodejs/node#61167) - \[[`cabd58f1cb`](nodejs/node@cabd58f1cb)] - **(SEMVER-MINOR)** **test**: use fixture directories for sea tests (Joyee Cheung) [#​61167](nodejs/node#61167) - \[[`ff1fcabfc9`](nodejs/node@ff1fcabfc9)] - **(SEMVER-MINOR)** **test\_runner**: support expecting a test-case to fail (Jacob Smith) [#​60669](nodejs/node#60669) ##### Commits - \[[`778a56f3c9`](nodejs/node@778a56f3c9)] - **assert,util**: fix deep comparison for sets and maps with mixed types (Ruben Bridgewater) [#​61388](nodejs/node#61388) - \[[`32cd18e37f`](nodejs/node@32cd18e37f)] - **async\_hooks**: enabledHooksExist shall return if hooks are enabled (Gerhard Stöbich) [#​61054](nodejs/node#61054) - \[[`482b2568bc`](nodejs/node@482b2568bc)] - **benchmark**: add SQLite benchmarks (Guilherme Araújo) [#​61401](nodejs/node#61401) - \[[`e9a34263bb`](nodejs/node@e9a34263bb)] - **buffer**: make methods work on Uint8Array instances (Neal Beeken) [#​56578](nodejs/node#56578) - \[[`8255cdefcf`](nodejs/node@8255cdefcf)] - **build**: add `--shared-nbytes` configure flag (Antoine du Hamel) [#​61341](nodejs/node#61341) - \[[`8dd379d110`](nodejs/node@8dd379d110)] - **build**: update android-patches/trap-handler.h.patch (Mo Luo) [#​60369](nodejs/node#60369) - \[[`1b4b5eb0e4`](nodejs/node@1b4b5eb0e4)] - **build**: update devcontainer.json to use paired nix env (Joyee Cheung) [#​61414](nodejs/node#61414) - \[[`86e2a763ad`](nodejs/node@86e2a763ad)] - **build**: infer cargo mode with gyp var build\_type directly (Chengzhong Wu) [#​61354](nodejs/node#61354) - \[[`7e211e6942`](nodejs/node@7e211e6942)] - **build**: add embedtest into native suite (Joyee Cheung) [#​61357](nodejs/node#61357) - \[[`637470e79f`](nodejs/node@637470e79f)] - **build**: fix misplaced comma in ldflags (hqzing) [#​61294](nodejs/node#61294) - \[[`a1a0f77a45`](nodejs/node@a1a0f77a45)] - **build**: fix crate vendor file checksums on windows (Chengzhong Wu) [#​61329](nodejs/node#61329) - \[[`d597b8e342`](nodejs/node@d597b8e342)] - **build,tools**: fix addon build deadlock on errors (Vladimir Morozov) [#​61321](nodejs/node#61321) - \[[`b5cdc27ba4`](nodejs/node@b5cdc27ba4)] - **build,win**: improve logs when ClangCL is missing (Mike McCready) [#​61438](nodejs/node#61438) - \[[`ef01f0c033`](nodejs/node@ef01f0c033)] - **build,win**: update WinGet configurations to Python 3.14 (Mike McCready) [#​61431](nodejs/node#61431) - \[[`d8a1cdeefe`](nodejs/node@d8a1cdeefe)] - **child\_process**: treat ipc length header as unsigned uint32 (Ryuhei Shima) [#​61344](nodejs/node#61344) - \[[`588b00fafa`](nodejs/node@588b00fafa)] - **cluster**: fix port reuse between cluster (Ryuhei Shima) [#​60141](nodejs/node#60141) - \[[`99a4e51f93`](nodejs/node@99a4e51f93)] - **crypto**: update root certificates to NSS 3.119 (Node.js GitHub Bot) [#​61419](nodejs/node#61419) - \[[`048f7a5c9c`](nodejs/node@048f7a5c9c)] - **deps**: upgrade npm to 11.8.0 (npm team) [#​61466](nodejs/node#61466) - \[[`fbe4da5725`](nodejs/node@fbe4da5725)] - **(SEMVER-MINOR)** **deps**: add LIEF as a dependency (Joyee Cheung) [#​61167](nodejs/node#61167) - \[[`0feab0f083`](nodejs/node@0feab0f083)] - **(SEMVER-MINOR)** **deps**: add tools and scripts to pull LIEF as a dependency (Joyee Cheung) [#​61167](nodejs/node#61167) - \[[`4bb00d7e3c`](nodejs/node@4bb00d7e3c)] - **deps**: update googletest to [`8508785`](nodejs/node@8508785) (Node.js GitHub Bot) [#​61417](nodejs/node#61417) - \[[`6a3c614f27`](nodejs/node@6a3c614f27)] - **deps**: update sqlite to 3.51.2 (Node.js GitHub Bot) [#​61339](nodejs/node#61339) - \[[`13c0397d6d`](nodejs/node@13c0397d6d)] - **deps**: update icu to 78.2 (Node.js GitHub Bot) [#​60523](nodejs/node#60523) - \[[`098ec6f196`](nodejs/node@098ec6f196)] - **deps**: update ada to v3.4.0 (Yagiz Nizipli) [#​61315](nodejs/node#61315) - \[[`320b576125`](nodejs/node@320b576125)] - **deps**: update zlib to 1.3.1-e00f703 (Node.js GitHub Bot) [#​61135](nodejs/node#61135) - \[[`98f5e7cf51`](nodejs/node@98f5e7cf51)] - **deps**: V8: cherry-pick [highway@`dcc0ca1`](https://github.com/highway/node/commit/dcc0ca1cd42) (Richard Lau) [#​61008](nodejs/node#61008) - \[[`e326df79c9`](nodejs/node@e326df79c9)] - **deps**: V8: backport [`209d2db`](nodejs/node@209d2db9e24a) (Zhijin Zeng) [#​61322](nodejs/node#61322) - \[[`ccfd9d9b30`](nodejs/node@ccfd9d9b30)] - **doc**: remove `v` prefix for version references (Mike McCready) [#​61488](nodejs/node#61488) - \[[`b6cc5d77a1`](nodejs/node@b6cc5d77a1)] - **doc**: mention constructor comparison in assert.deepStrictEqual (Hamza Kargin) [#​60253](nodejs/node#60253) - \[[`236d7ee635`](nodejs/node@236d7ee635)] - **doc**: add CVE delay mention (Rafael Gonzaga) [#​61465](nodejs/node#61465) - \[[`0729fb6ee7`](nodejs/node@0729fb6ee7)] - **doc**: update previous version links in BUILDING (Mike McCready) [#​61457](nodejs/node#61457) - \[[`0fb464252f`](nodejs/node@0fb464252f)] - **doc**: include OpenJSF handle for security stewards (Rafael Gonzaga) [#​61454](nodejs/node#61454) - \[[`3331bdca7c`](nodejs/node@3331bdca7c)] - **doc**: clarify process.argv\[1] behavior for -e/--eval (Jeevankumar S) [#​61366](nodejs/node#61366) - \[[`94b34c38e2`](nodejs/node@94b34c38e2)] - **doc**: remove Windows Dev Home instructions from BUILDING (Mike McCready) [#​61434](nodejs/node#61434) - \[[`a17016ee81`](nodejs/node@a17016ee81)] - **doc**: clarify TypedArray properties on Buffer (Roman Reiss) [#​61355](nodejs/node#61355) - \[[`214fac9d7e`](nodejs/node@214fac9d7e)] - **doc**: update Python 3.14 manual install instructions (Windows) (Mike McCready) [#​61428](nodejs/node#61428) - \[[`6a32a685a6`](nodejs/node@6a32a685a6)] - **doc**: note resume build should not be done on node-test-commit (Stewart X Addison) [#​61373](nodejs/node#61373) - \[[`2a8e8dfaf3`](nodejs/node@2a8e8dfaf3)] - **doc**: refine WebAssembly error documentation (sangwook) [#​61382](nodejs/node#61382) - \[[`f3caf27f8b`](nodejs/node@f3caf27f8b)] - **doc**: add deprecation history for url.parse (Eng Zer Jun) [#​61389](nodejs/node#61389) - \[[`5ab8057856`](nodejs/node@5ab8057856)] - **doc**: add marco and rafael in last sec release (Marco Ippolito) [#​61383](nodejs/node#61383) - \[[`f83cb1e785`](nodejs/node@f83cb1e785)] - **doc**: packages: example of private import switch to internal (coderaiser) [#​61343](nodejs/node#61343) - \[[`3d23bcd0e2`](nodejs/node@3d23bcd0e2)] - **doc**: add esm and cjs examples to node:v8 (Alfredo González) [#​61328](nodejs/node#61328) - \[[`1d159550e0`](nodejs/node@1d159550e0)] - **doc**: added 'secure' event to tls.TLSSocket (ikeyan) [#​61066](nodejs/node#61066) - \[[`90080d2892`](nodejs/node@90080d2892)] - **doc**: restore [@​watilde](https://github.com/watilde) to collaborators (Daijiro Wachi) [#​61350](nodejs/node#61350) - \[[`a87f7a50f8`](nodejs/node@a87f7a50f8)] - **doc**: run license-builder (github-actions\[bot]) [#​61348](nodejs/node#61348) - \[[`adf5c84701`](nodejs/node@adf5c84701)] - **doc**: clean up writing-and-running-benchmarks.md (Hardanish Singh) [#​61345](nodejs/node#61345) - \[[`2be98add0c`](nodejs/node@2be98add0c)] - **doc**: document ALPNCallback option for TLSSocket constructor (ikeyan) [#​61331](nodejs/node#61331) - \[[`2db4893c8d`](nodejs/node@2db4893c8d)] - **esm**: ensure watch mode restarts after syntax errors (Xavier Stouder) [#​61232](nodejs/node#61232) - \[[`828feb2e6b`](nodejs/node@828feb2e6b)] - **events**: remove redundant todo (Gürgün Dayıoğlu) [#​60595](nodejs/node#60595) - \[[`e91b296001`](nodejs/node@e91b296001)] - **(SEMVER-MINOR)** **fs**: add ignore option to fs.watch (Matteo Collina) [#​61433](nodejs/node#61433) - \[[`606184fae5`](nodejs/node@606184fae5)] - **fs**: remove duplicate getValidatedPath calls (Mert Can Altin) [#​61359](nodejs/node#61359) - \[[`434fcd7f8f`](nodejs/node@434fcd7f8f)] - **fs**: fix errorOnExist behavior for directory copy in fs.cp (Nicholas Paun) [#​60946](nodejs/node#60946) - \[[`bacba16f5e`](nodejs/node@bacba16f5e)] - **fs**: fix ENOTDIR in globSync when file is treated as dir (sangwook) [#​61259](nodejs/node#61259) - \[[`7697ce0310`](nodejs/node@7697ce0310)] - **fs**: remove duplicate fd validation in sync functions (Mert Can Altin) [#​61361](nodejs/node#61361) - \[[`8abd54f597`](nodejs/node@8abd54f597)] - **gyp**: aix: change gcc version detection so CXX="ccache g++" works (Stewart X Addison) [#​61464](nodejs/node#61464) - \[[`24033ee7ea`](nodejs/node@24033ee7ea)] - **http**: fix rawHeaders exceeding maxHeadersCount limit (Max Harari) [#​61285](nodejs/node#61285) - \[[`cf56327939`](nodejs/node@cf56327939)] - **http2**: validate initialWindowSize per HTTP/2 spec (Matteo Collina) [#​61402](nodejs/node#61402) - \[[`696935eeeb`](nodejs/node@696935eeeb)] - **inspector**: initial support storage inspection (Ryuhei Shima) [#​61139](nodejs/node#61139) - \[[`3d5e718e38`](nodejs/node@3d5e718e38)] - **lib**: fix typo in `util.js` comment (Taejin Kim) [#​61365](nodejs/node#61365) - \[[`f55a5fea00`](nodejs/node@f55a5fea00)] - **lib**: fix TypeScript support check in jitless mode (sangwook) [#​61382](nodejs/node#61382) - \[[`b3fbc3c375`](nodejs/node@b3fbc3c375)] - **meta**: do not fast-track npm updates (Antoine du Hamel) [#​61475](nodejs/node#61475) - \[[`2423ecdaef`](nodejs/node@2423ecdaef)] - **meta**: fix typos in issue template config (Daijiro Wachi) [#​61399](nodejs/node#61399) - \[[`e2df85a33a`](nodejs/node@e2df85a33a)] - **meta**: label v8 module MRs (René) [#​61325](nodejs/node#61325) - \[[`bc9e5f7d4d`](nodejs/node@bc9e5f7d4d)] - **node-api**: fix node\_api\_create\_object\_with\_properties name (Vladimir Morozov) [#​61319](nodejs/node#61319) - \[[`4f30c21c59`](nodejs/node@4f30c21c59)] - **node-api**: use Node-API in comments (Vladimir Morozov) [#​61320](nodejs/node#61320) - \[[`62d71eb28d`](nodejs/node@62d71eb28d)] - **quic**: copy options.certs buffer instead of detaching (Chengzhong Wu) [#​61403](nodejs/node#61403) - \[[`4bbbe75ba1`](nodejs/node@4bbbe75ba1)] - **quic**: move quic behind compile time flag (Matteo Collina) [#​61444](nodejs/node#61444) - \[[`b351910af1`](nodejs/node@b351910af1)] - **(SEMVER-MINOR)** **sea**: add --build-sea to generate SEA directly with Node.js binary (Joyee Cheung) [#​61167](nodejs/node#61167) - \[[`957292e233`](nodejs/node@957292e233)] - **(SEMVER-MINOR)** **sea**: split sea binary manipulation code (Joyee Cheung) [#​61167](nodejs/node#61167) - \[[`f289817ff8`](nodejs/node@f289817ff8)] - **(SEMVER-MINOR)** **sqlite**: enable defensive mode by default (Bart Louwers) [#​61266](nodejs/node#61266) - \[[`6442229880`](nodejs/node@6442229880)] - **sqlite**: add some tests (Guilherme Araújo) [#​61410](nodejs/node#61410) - \[[`069f3603e2`](nodejs/node@069f3603e2)] - **(SEMVER-MINOR)** **sqlite**: add sqlite prepare options args (Guilherme Araújo) [#​61311](nodejs/node#61311) - \[[`df02d00d61`](nodejs/node@df02d00d61)] - **src**: improve StringBytes::Encode perf on UTF8 (Сковорода Никита Андреевич) [#​61131](nodejs/node#61131) - \[[`e35814ba80`](nodejs/node@e35814ba80)] - **src**: add missing override specifier to Clean() (Tobias Nießen) [#​61429](nodejs/node#61429) - \[[`803ff7d3de`](nodejs/node@803ff7d3de)] - **src**: cache context lookup in vectored io loops (Mert Can Altin) [#​61387](nodejs/node#61387) - \[[`58abe99cbf`](nodejs/node@58abe99cbf)] - **src**: cache missing package.json files in the C++ package config cache (Michael Smith) [#​60425](nodejs/node#60425) - \[[`2a542094e4`](nodejs/node@2a542094e4)] - **src**: use starts\_with instead of rfind/find (Tobias Nießen) [#​61426](nodejs/node#61426) - \[[`77cacf6d9d`](nodejs/node@77cacf6d9d)] - **src**: use C++ nullptr in sqlite (Tobias Nießen) [#​61416](nodejs/node#61416) - \[[`344cc629d4`](nodejs/node@344cc629d4)] - **src**: use C++ nullptr in webstorage (Tobias Nießen) [#​61407](nodejs/node#61407) - \[[`9f25cad26c`](nodejs/node@9f25cad26c)] - **src**: fix pointer alignment (jhofstee) [#​61336](nodejs/node#61336) - \[[`5a984b9a09`](nodejs/node@5a984b9a09)] - **src**: use node- prefix on thread names (Stewart X Addison) [#​61307](nodejs/node#61307) - \[[`d4cf423a65`](nodejs/node@d4cf423a65)] - **stream**: export namespace object from internal end-of-stream module (René) [#​61455](nodejs/node#61455) - \[[`7d8232e34c`](nodejs/node@7d8232e34c)] - **test**: add some validation for JSON doc output (Antoine du Hamel) [#​61413](nodejs/node#61413) - \[[`75c06bc2a8`](nodejs/node@75c06bc2a8)] - **(SEMVER-MINOR)** **test**: migrate to --build-sea in existing SEA tests (Joyee Cheung) [#​61167](nodejs/node#61167) - \[[`cabd58f1cb`](nodejs/node@cabd58f1cb)] - **(SEMVER-MINOR)** **test**: use fixture directories for sea tests (Joyee Cheung) [#​61167](nodejs/node#61167) - \[[`bcffca8911`](nodejs/node@bcffca8911)] - **test**: aix: mark test\_threadsafe\_function/test flaky on AIX (Stewart X Addison) [#​61452](nodejs/node#61452) - \[[`29399501c1`](nodejs/node@29399501c1)] - **test**: add implicit test for fs dispose handling with using (Ilyas Shabi) [#​61140](nodejs/node#61140) - \[[`3bb481571a`](nodejs/node@3bb481571a)] - **test**: reveal wpt evaluation errors in status files (Chengzhong Wu) [#​61358](nodejs/node#61358) - \[[`a132be7f71`](nodejs/node@a132be7f71)] - **test**: check new WebCryptoAPI enum values (Filip Skokan) [#​61406](nodejs/node#61406) - \[[`72f1463735`](nodejs/node@72f1463735)] - **test**: split test-esm-loader-hooks (Joyee Cheung) [#​61374](nodejs/node#61374) - \[[`39105e4c5f`](nodejs/node@39105e4c5f)] - **test**: aix: mark test-emit-on-destroyed as flaky (Stewart X Addison) [#​61381](nodejs/node#61381) - \[[`3f17acfb1c`](nodejs/node@3f17acfb1c)] - **test**: add webidl web-platform tests (Yagiz Nizipli) [#​61316](nodejs/node#61316) - \[[`89983cf747`](nodejs/node@89983cf747)] - **test**: update url web-platform tests (Yagiz Nizipli) [#​61315](nodejs/node#61315) - \[[`73c0a242d7`](nodejs/node@73c0a242d7)] - **test**: forbid use of named imports for fixtures (Antoine du Hamel) [#​61228](nodejs/node#61228) - \[[`a49d54308e`](nodejs/node@a49d54308e)] - **test**: enforce better never-settling-promise detection (Antoine du Hamel) [#​60976](nodejs/node#60976) - \[[`335cb0b5cc`](nodejs/node@335cb0b5cc)] - **test**: ensure assertions are reached on all tests (Antoine du Hamel) [#​60845](nodejs/node#60845) - \[[`5ee02c789a`](nodejs/node@5ee02c789a)] - **test**: ensure assertions are reached on more tests (Antoine du Hamel) [#​60763](nodejs/node#60763) - \[[`141fb82ffb`](nodejs/node@141fb82ffb)] - **test**: ensure assertions are reached on more tests (Antoine du Hamel) [#​60760](nodejs/node#60760) - \[[`edf90ce457`](nodejs/node@edf90ce457)] - **test**: use `RegExp.escape` to improve test reliability (Antoine du Hamel) [#​60803](nodejs/node#60803) - \[[`f5f9b2dcf6`](nodejs/node@f5f9b2dcf6)] - **test**: ensure assertions are reached on more tests (Antoine du Hamel) [#​60728](nodejs/node#60728) - \[[`ec1cbbe0b6`](nodejs/node@ec1cbbe0b6)] - **test\_runner**: fix memory leaks in runner (Abhishek Kv. Savani) [#​60860](nodejs/node#60860) - \[[`399ac68427`](nodejs/node@399ac68427)] - **test\_runner**: fix coverage report when a directory is named file (Heath Dutton🕴️) [#​61169](nodejs/node#61169) - \[[`6e1beda333`](nodejs/node@6e1beda333)] - **test\_runner**: print info when test restarts (Xavier Stouder) [#​61160](nodejs/node#61160) - \[[`f5803ccb86`](nodejs/node@f5803ccb86)] - **test\_runner**: fix rerun ambiguous test failures (Moshe Atlow) [#​61392](nodejs/node#61392) - \[[`a5a4c3eb44`](nodejs/node@a5a4c3eb44)] - **test\_runner**: nix dead reporter code (Vas Sudanagunta) [#​59700](nodejs/node#59700) - \[[`ff1fcabfc9`](nodejs/node@ff1fcabfc9)] - **(SEMVER-MINOR)** **test\_runner**: support expecting a test-case to fail (Jacob Smith) [#​60669](nodejs/node#60669) - \[[`ade4fc2338`](nodejs/node@ade4fc2338)] - **tools**: copyedit Nix files (Antoine du Hamel) [#​61447](nodejs/node#61447) - \[[`7c2242beb9`](nodejs/node@7c2242beb9)] - **tools**: validate release commit diff as part of `lint-release-proposal` (Antoine du Hamel) [#​61440](nodejs/node#61440) - \[[`ca4ebed258`](nodejs/node@ca4ebed258)] - **tools**: use ad-hoc flag to lint Nix files (Antoine du Hamel) [#​61405](nodejs/node#61405) - \[[`05ce2c87f3`](nodejs/node@05ce2c87f3)] - **tools**: fix vcbuild lint-js-build (Vladimir Morozov) [#​61318](nodejs/node#61318) - \[[`41adb54a37`](nodejs/node@41adb54a37)] - **tools**: enforce trailing commas in `test/es-module` (Antoine du Hamel) [#​60891](nodejs/node#60891) - \[[`eebd732a52`](nodejs/node@eebd732a52)] - **tools**: enforce trailing commas in `test/sequential` (Antoine du Hamel) [#​60892](nodejs/node#60892) - \[[`8b73739e03`](nodejs/node@8b73739e03)] - **typings**: add typing for string\_decoder (Taejin Kim) [#​61368](nodejs/node#61368) - \[[`e88dd012ad`](nodejs/node@e88dd012ad)] - **v8**: changing total\_allocated\_bytes to avoid ABI changes (Caio Lima) [#​60800](nodejs/node#60800) - \[[`c75ad3d87d`](nodejs/node@c75ad3d87d)] - **v8**: add GCProfiler support for erm (Ilyas Shabi) [#​61191](nodejs/node#61191) - \[[`611c179663`](nodejs/node@611c179663)] - **zlib**: validate write\_result array length (Ryuhei Shima) [#​61342](nodejs/node#61342) </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this MR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this MR, check this box --- This MR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0Mi45Mi4xMSIsInVwZGF0ZWRJblZlciI6IjQyLjkyLjExIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJSZW5vdmF0ZSBCb3QiLCJhdXRvbWF0aW9uOmJvdC1hdXRob3JlZCIsImRlcGVuZGVuY3ktdHlwZTo6bWlub3IiXX0=-->
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Removes the reliance on prototype bound methods internally
so that Uint8Arrays can be set as the bound
thisvalue when callingthe various Buffer methods. Introduces some additional tamper protection
by removing internal reliance on writable properties.
Fixes: #56577