Simplify benchmark by using more low-level API from 'benchmark.js' (graphql#1750)

Author: IvanGoncharov

resources/benchmark.js

@@ -9,7 +9,7 @@
 
 'use strict';
 
-const { Suite } = require('benchmark');
+const { Benchmark } = require('benchmark');
 const { execSync } = require('child_process');
 const os = require('os');
 const fs = require('fs');
@@ -79,33 +79,21 @@ function findFiles(cwd, pattern) {
 
 // Run a given benchmark test with the provided revisions.
 function runBenchmark(benchmark, environments) {
- const modules = environments.map(({ distPath }) =>
- require(path.join(distPath, benchmark))
- );
- const benchResults = []
-
- const suite = new Suite(modules[0].name, {
- onStart(event) {
- console.log('⏱️ ' + event.currentTarget.name);
- },
- onCycle({ target }) {
- benchResults.push(target);
- process.stdout.write(
- ' ' + cyan(benchResults.length) + ' tests completed.\u000D',
- );
- },
- onError(event) {
- console.error(event.target.error);
- },
- onComplete() {
- console.log('\n');
- beautifyBenchmark(benchResults);
- },
+ let benchmarkName;
+ const benches = environments.map(environment => {
+ const module = require(path.join(environment.distPath, benchmark))
+ benchmarkName = module.name;
+ return new Benchmark(environment.revision, module.measure);
  });
- for (let i = 0; i < environments.length; i++) {
- suite.add(environments[i].revision, modules[i].measure);
+
+ console.log('⏱️ ' + benchmarkName);
+ for (let i = 0; i < benches.length; ++i) {
+ benches[i].run({ async: false });
+ process.stdout.write(' ' + cyan(i + 1) + ' tests completed.\u000D');
  }
- suite.run({ async: false });
+ console.log('\n');
+
+ beautifyBenchmark(benches);
  console.log('');
 }