benchmark: add benchmark for leaf source text modules

PR-URL: #60205 Refs: #59656 Refs: #37648 Reviewed-By: Chengzhong Wu <[email protected]>

Author: joyeecheung

benchmark/vm/source-text-module-leaf.js

@@ -0,0 +1,84 @@
+'use strict';
+
+constvm=require('vm');
+constcommon=require('../common.js');
+constassert=require('assert');
+
+constbench=common.createBenchmark(main,{
+stage: ['all','compile','link','instantiate','evaluate'],
+type: ['sync','async'],
+n: [1000],
+},{
+flags: ['--experimental-vm-modules'],
+});
+
+functionmain({ stage, type, n }){
+constarr=[];
+if(stage==='all'||stage==='compile'){
+bench.start();
+}
+
+for(leti=0;i<n;i++){
+letsource=`export const value${i} = 1;`;
+if(type==='async'){
+source+=`\nawait Promise.resolve();\n`;
+}
+constm=newvm.SourceTextModule(source);
+arr.push(m);
+}
+
+if(stage==='compile'){
+bench.end(n);
+return;
+}
+
+if(stage==='link'){
+bench.start();
+}
+
+for(leti=0;i<n;i++){
+arr[i].linkRequests([]);
+}
+
+if(stage==='link'){
+bench.end(n);
+return;
+}
+
+if(stage==='instantiate'){
+bench.start();
+}
+
+for(leti=0;i<n;i++){
+arr[i].instantiate();
+}
+
+if(stage==='instantiate'){
+bench.end(n);
+return;
+}
+
+if(stage==='evaluate'){
+bench.start();
+}
+
+functionfinalize(){
+bench.end(n);
+for(leti=0;i<n;i++){
+assert.strictEqual(arr[i].namespace[`value${i}`],1);
+}
+}
+
+if(type==='sync'){
+for(leti=0;i<n;i++){
+arr[i].evaluate();
+}
+finalize();
+}else{
+constpromises=[];
+for(leti=0;i<n;i++){
+promises.push(arr[i].evaluate());
+}
+Promise.all(promises).then(finalize);
+}
+}