Commit 760a351
benchmark: add benchmark for EventTarget add and remove
Refs: nodejs/performance#60
PR-URL: #46779
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>1 parent f4cbe4e commit 760a351
1 file changed
Lines changed: 26 additions & 0 deletions
| Original file line number | Diff line number | Diff line change | |
|---|---|---|---|
@@ -0,0 +1,26 @@ | |||
| 1 | + 'use strict'; | ||
| 2 | + const common = require('../common.js'); | ||
| 3 | + | ||
| 4 | + const bench = common.createBenchmark(main, { | ||
| 5 | + n: [1e6], | ||
| 6 | + nListener: [5, 10], | ||
| 7 | + }); | ||
| 8 | + | ||
| 9 | + function main({ n, nListener }) { | ||
| 10 | + const target = new EventTarget(); | ||
| 11 | + const listeners = []; | ||
| 12 | + for (let k = 0; k < nListener; k += 1) | ||
| 13 | + listeners.push(() => {}); | ||
| 14 | + | ||
| 15 | + bench.start(); | ||
| 16 | + for (let i = 0; i < n; i += 1) { | ||
| 17 | + const dummy = (i % 2 === 0) ? 'dummy0' : 'dummy1'; | ||
| 18 | + for (let k = listeners.length; --k >= 0;) { | ||
| 19 | + target.addEventListener(dummy, listeners[k]); | ||
| 20 | + } | ||
| 21 | + for (let k = listeners.length; --k >= 0;) { | ||
| 22 | + target.removeEventListener(dummy, listeners[k]); | ||
| 23 | + } | ||
| 24 | + } | ||
| 25 | + bench.end(n); | ||
| 26 | + } | ||
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