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0f9efef05d
Instead of using kOnTimeout index to track a special list processing function, just pass in a function to C++ at startup that executes all handles and determines which function to call. This change improves the performance of unpooled timeouts by roughly 20%, as well as makes the unref/ref processing easier to follow. PR-URL: https://github.com/nodejs/node/pull/18582 Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Vladimir de Turckheim <vlad2t@hotmail.com> Reviewed-By: Evan Lucas <evanlucas@me.com>
37 lines
824 B
JavaScript
37 lines
824 B
JavaScript
'use strict';
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const common = require('../common.js');
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// The following benchmark sets up n * 1e6 unpooled timeouts,
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// then measures their execution on the next uv tick
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const bench = common.createBenchmark(main, {
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n: [1e6],
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});
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function main({ n }) {
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let count = 0;
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// Function tracking on the hidden class in V8 can cause misleading
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// results in this benchmark if only a single function is used —
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// alternate between two functions for a fairer benchmark
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function cb() {
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count++;
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if (count === n)
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bench.end(n);
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}
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function cb2() {
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count++;
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if (count === n)
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bench.end(n);
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}
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for (var i = 0; i < n; i++) {
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// unref().ref() will cause each of these timers to
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// allocate their own handle
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setTimeout(i % 2 ? cb : cb2, 1).unref().ref();
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}
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bench.start();
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}
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