npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

iperf

v0.1.0-beta.18

Published

Performance Testing Framework for Front-end Renderers

Downloads

509

Readme

iPerf.js

iPerf is a simple performance testing framework for front-end renderers. It is developed based on Vite and supports testing rendering time, frame rate, and can collect hardware information.

Install

npm install iperf --save-dev

Usage

  1. Create a test file, e.g. test.perf.ts:
export const TestName = async ({ perf, container }) => {
  // Test the rendering duration by marking the start and end of the rendering process
  const canvas = document.createElement('canvas');
  container.appendChild(canvas);

  const ctx = canvas.getContext('2d');
  perf.mark('start');
  for (let i = 0; i < 1000; i++) {
    ctx.fillRect(0, 0, 100, 100);
  }
  perf.mark('end');
  perf.measure('rendering', 'start', 'end');

  // Test the rendering duration by giving a callback function
  await perf.evaluate('rendering', () => {
    for (let i = 0; i < 1000; i++) {
      ctx.fillRect(0, 0, 100, 100);
    }
  });

  // Record the frame rate
  requestAnimationFrame(function loop() {
    perf.frame();
    ctx.clearRect(0, 0, 100, 100);
    ctx.fillRect(0, 0, 100, 100);
    requestAnimationFrame(loop);
  });
};
  1. Run the test:
npx perf

Configuration

You can configure iPerf by creating a perf.config.js file in the root of your project:

import { defineConfig } from 'iperf';

export default defineConfig({
  perf: {
    socket: {
      port: 7880,
      timeout: 60 * 1000,
    },
    report: {
      dir: 'perf/reports-1',
    },
  },
  // other vite options
});

Preview Mode

In this mode, iPerf will open a browser window to preview the test. You can enable it by adding the preview option:

npx perf preview

License

© 2024 Aarebecca. ISC License.