Perf Packages

RAF loop with an adaptive fps and performance ratio calculated from either a sample count or a sample duration. Typically used when doing intensive graphics computation in canvas.

Library to replace V8's `--perf-basic-prof` flag, with the ability to toggle creation of Linux `perf` map files during runtime.

PERFect, simple JavaScript PERFormance tests

Tiny browser+node performance tracker

performance and tracing

Load test.

Converts output of various profiling/sampling tools to the .cpuprofile format so it can be loaded into Chrome DevTools.

JavaScript APM Tracer , 前端监控SDK

A GUI react-addons-perf wrapper to measure a React component's performance

Fast, lexicographic base62 encode and decode

Library to replace V8's `--perf-basic-prof` flag, with the ability to toggle creation of Linux `perf` map files during runtime.

CLI tool to convert perf record data to JSON.

Get the elapsed time of a block of code and return the result of that block of code.

nanømsg style performance benchmarks

A simple performance testing utility written in typescript

Gather performance information from GraphQL resolve methods and prepare JSON in Trace Event Format for Chrome Devtools Timeline

chronolite is a microlibrary for timing, comparing and benchmarking JavaScript functions. It supports both synchronous and asynchronous functions. Common use cases include performance benchmarking for a function, and benchmarking multiple functions agains

Calculate build stats

Easy to use, PSI API hit using Node.js to collect Web Performance Metrics

gather common performance metrics from a website like time to interactive (tti) and DOMContentLoaded