benchmark: add benchmark for EventTarget add and remove

debadree25 · danielleadams · commit 5f647fb7b431 · 2023-04-10T20:55:01.000-04:00
Refs: nodejs/performance#60 PR-URL: #46779 Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
diff --git a/benchmark/events/eventtarget-add-remove.js b/benchmark/events/eventtarget-add-remove.js
@@ -0,0 +1,26 @@
+'use strict';
+const common = require('../common.js');
+
+const bench = common.createBenchmark(main,{
+ n: [1e6],
+ nListener: [5, 10],
+});
+
+function main({n, nListener }){
+ const target = new EventTarget();
+ const listeners = [];
+ for (let k = 0; k < nListener; k += 1)
+ listeners.push(() =>{});
+
+ bench.start();
+ for (let i = 0; i < n; i += 1){
+ const dummy = (i % 2 === 0) ? 'dummy0' : 'dummy1';
+ for (let k = listeners.length; --k >= 0;){
+ target.addEventListener(dummy, listeners[k]);
+ }
+ for (let k = listeners.length; --k >= 0;){
+ target.removeEventListener(dummy, listeners[k]);
+ }
+ }
+ bench.end(n);
+}

-Original file line number
+Diff line change
@@ @@ -0,0 +1,26 @@ @@
 +'use strict';
 +constcommon=require('../common.js');
++
 +constbench=common.createBenchmark(main,{
 +n: [1e6],
 +nListener: [5,10],
 +});
++
 +functionmain({ n, nListener }){
 +consttarget=newEventTarget();
 +constlisteners=[];
 +for(letk=0;k<nListener;k+=1)
 +listeners.push(()=>{});
++
 +bench.start();
 +for(leti=0;i<n;i+=1){
 +constdummy=(i%2===0) ? 'dummy0' : 'dummy1';
 +for(letk=listeners.length;--k>=0;){
 +target.addEventListener(dummy,listeners[k]);
 +}
 +for(letk=listeners.length;--k>=0;){
 +target.removeEventListener(dummy,listeners[k]);
 +}
 +}
 +bench.end(n);
 +}