9e0dc8b472- copyBytesFrom: calculate byte offsets directly instead of
slicing into an intermediate typed array
- toString('hex'): use V8 Uint8Array.prototype.toHex() builtin
- fill: add single-char ASCII fast path
- indexOf: use indexOfString directly for ASCII encoding
- swap16/32/64: add V8 Fast API functions
PR-URL: https://github.com/nodejs/node/pull/61871
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
31 lines
727 B
JavaScript
31 lines
727 B
JavaScript
'use strict';
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const common = require('../common.js');
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const bench = common.createBenchmark(main, {
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type: ['Uint8Array', 'Uint16Array', 'Uint32Array', 'Float64Array'],
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len: [64, 256, 2048],
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partial: ['none', 'offset', 'offset-length'],
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n: [6e5],
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});
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function main({ n, len, type, partial }) {
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const TypedArrayCtor = globalThis[type];
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const src = new TypedArrayCtor(len);
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for (let i = 0; i < len; i++) src[i] = i;
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let offset;
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let length;
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if (partial === 'offset') {
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offset = len >>> 2;
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} else if (partial === 'offset-length') {
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offset = len >>> 2;
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length = len >>> 1;
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}
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bench.start();
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for (let i = 0; i < n; i++) {
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Buffer.copyBytesFrom(src, offset, length);
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}
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bench.end(n);
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}
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