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5396baf7c1
When create Buffer from a Buffer will copy data from old to new even though length is zero. This patch can improve edge case 4x faster. following is benchmark results. new: buffers/buffer_zero.js n=1024: 2463.53891 old: buffers/buffer_zero.js n=1024: 618.70801 PR-URL: https://github.com/nodejs/node/pull/4326 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
19 lines
288 B
JavaScript
19 lines
288 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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n: [1024]
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});
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const zero = new Buffer(0);
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function main(conf) {
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var n = +conf.n;
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bench.start();
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for (let i = 0; i < n * 1024; i++) {
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new Buffer(zero);
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}
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bench.end(n);
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}
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