Samuel Attard MarshallOfSound

Core fs micro-benchmarks for nodejs/node FSReqPromise lazy stat arrays

Scripts used to benchmark https://github.com/nodejs/node/compare/main...MarshallOfSound:node:perf/fsreq-promise-lazy-stats

Usage

# all scenarios on one binary (one JSON line each: ns/op + ops/sec)
node fsbench.js

Ad-hoc module loading benchmarks for nodejs/node `Module._load` resolve-cache change

Scripts used to benchmark https://github.com/nodejs/node/compare/main...MarshallOfSound:node:perf/cache-only

Usage

# 1. generate the fixture module graphs (next to these scripts)
python3 fixtures-generate.py        # cjs-app, cjs-pkgs, cjs-exports, esm-app
python3 fixtures-extra.py # hot loops, lazy pattern, scaling variants

esbuild __toCommonJS identity regression repro

npm i esbuild
npx esbuild entry.js --bundle | node

Expected: a === b: true (matches Node CJS semantics, webpack, and esbuild ≤ 0.14.26) Actual: a === b: false

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<title>Hello World!</title>
	</head>
	<body style="background: red;">
	<h1>Hello World!</h1>
	<!-- All of the Node.js APIs are available in this renderer process. -->
	We are using Node.js <script>document.write(process.versions.node)</script>,

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<title>Hello World!</title>
	</head>
	<body>
	<h1>Hello World!</h1>
	<!-- All of the Node.js APIs are available in this renderer process. -->
	We are using Node.js <script>document.write(process.versions.node)</script>,

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<title>Hello World!</title>
	</head>
	<body>
	<h1>Hello World!</h1>
	<!-- All of the Node.js APIs are available in this renderer process. -->
	We are using Node.js <script>document.write(process.versions.node)</script>,

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<title>Hello World!</title>
	</head>
	<body>
	<h1>Hello World!</h1>
	<!-- All of the Node.js APIs are available in this renderer process. -->
	We are using Node.js <script>document.write(process.versions.node)</script>,

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<title>Hello World!</title>
	</head>
	<body>
	<h1>Hello World!</h1>
	<!-- All of the Node.js APIs are available in this renderer process. -->
	We are using Node.js <script>document.write(process.versions.node)</script>,

Samuel Attard MarshallOfSound

Core fs micro-benchmarks for nodejs/node FSReqPromise lazy stat arrays

Usage

Ad-hoc module loading benchmarks for nodejs/node Module._load resolve-cache change

Usage

esbuild __toCommonJS identity regression repro

Ad-hoc module loading benchmarks for nodejs/node `Module._load` resolve-cache change