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There is a benchmark for the class method `Buffer.compare()` but not for the instance method `buf.compare()`. This adds that benchmark. I used this to confirm a performance regression in an implementation I was considering. While the implementation was a bust, it does seem like the benchmark is worthwhile. The benchmark is nearly identical to the existing `Buffer.compare()` benchmark except, of course, that it calls `buf.compare()` instead. PR-URL: https://github.com/nodejs/node/pull/5441 Reviewed-By: Brian White <mscdex@mscdex.net> Reviewed-By: Evan Lucas <evanlucas@me.com>
30 lines
701 B
JavaScript
30 lines
701 B
JavaScript
'use strict';
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const common = require('../common.js');
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const v8 = require('v8');
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const bench = common.createBenchmark(main, {
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size: [16, 512, 1024, 4096, 16386],
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millions: [1]
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});
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function main(conf) {
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const iter = (conf.millions >>> 0) * 1e6;
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const size = (conf.size >>> 0);
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const b0 = new Buffer(size).fill('a');
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const b1 = new Buffer(size).fill('a');
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b1[size - 1] = 'b'.charCodeAt(0);
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// Force optimization before starting the benchmark
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b0.compare(b1);
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v8.setFlagsFromString('--allow_natives_syntax');
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eval('%OptimizeFunctionOnNextCall(b0.compare)');
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b0.compare(b1);
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bench.start();
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for (var i = 0; i < iter; i++) {
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b0.compare(b1);
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}
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bench.end(iter / 1e6);
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}
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