@kyle-west/perf-test
v0.2.0
Published
CLI to test performance page load trials on Chromium, Firefox, and WebKit.
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Web Page Load Performance Tester
CLI to test performance page load trials on Chromium, Firefox, and WebKit.
Uses the beautiful playwright package underneath.
Note: This package is still in pre-release and subject to possible change.
Install
Install globally using NPM.
npm install -g @kyle-west/perf-test
Usage
The perf
CLI simply needs a URL to test against, and a count for the number of trials to run (defaults to 3).
perf <url> [<number of trials>]
Example
Running: perf https://github.com/kyle-west 3
will test 3 page load trials of loading github.com. It will output something of the following:
Time Trials for https://github.com/kyle-west on Thu Jul 09 2020
Time Trials for Chromium Browser
┌─────────┬─────────────┬────────────────┬──────────────────────────┬──────────────┐
│ (index) │ responseEnd │ domInteractive │ domContentLoadedEventEnd │ loadEventEnd │
├─────────┼─────────────┼────────────────┼──────────────────────────┼──────────────┤
│ 0 │ 2269 │ 2420 │ 2420 │ 2772 │
│ 1 │ 388 │ 553 │ 554 │ 891 │
│ 2 │ 372 │ 675 │ 675 │ 841 │
└─────────┴─────────────┴────────────────┴──────────────────────────┴──────────────┘
Chromium Averages
┌──────────────────────────┬────────────────────┐
│ (index) │ Values │
├──────────────────────────┼────────────────────┤
│ responseEnd │ 1009.6666666666666 │
│ domInteractive │ 1216 │
│ domContentLoadedEventEnd │ 1216.3333333333333 │
│ loadEventEnd │ 1501.3333333333333 │
└──────────────────────────┴────────────────────┘
Time Trials for Firefox Browser
┌─────────┬─────────────┬────────────────┬──────────────────────────┬──────────────┐
│ (index) │ responseEnd │ domInteractive │ domContentLoadedEventEnd │ loadEventEnd │
├─────────┼─────────────┼────────────────┼──────────────────────────┼──────────────┤
│ 0 │ 532 │ 906 │ 910 │ 1096 │
│ 1 │ 542 │ 916 │ 920 │ 1105 │
│ 2 │ 546 │ 920 │ 947 │ 1129 │
└─────────┴─────────────┴────────────────┴──────────────────────────┴──────────────┘
Firefox Averages
┌──────────────────────────┬───────────────────┐
│ (index) │ Values │
├──────────────────────────┼───────────────────┤
│ responseEnd │ 540 │
│ domInteractive │ 914 │
│ domContentLoadedEventEnd │ 925.6666666666666 │
│ loadEventEnd │ 1110 │
└──────────────────────────┴───────────────────┘
Time Trials for WebKit Browser
┌─────────┬─────────────┬────────────────┬──────────────────────────┬──────────────┐
│ (index) │ responseEnd │ domInteractive │ domContentLoadedEventEnd │ loadEventEnd │
├─────────┼─────────────┼────────────────┼──────────────────────────┼──────────────┤
│ 0 │ 305 │ 502 │ 502 │ 828 │
│ 1 │ 315 │ 529 │ 529 │ 846 │
│ 2 │ 304 │ 497 │ 498 │ 819 │
└─────────┴─────────────┴────────────────┴──────────────────────────┴──────────────┘
WebKit Averages
┌──────────────────────────┬───────────────────┐
│ (index) │ Values │
├──────────────────────────┼───────────────────┤
│ responseEnd │ 308 │
│ domInteractive │ 509.3333333333333 │
│ domContentLoadedEventEnd │ 509.6666666666667 │
│ loadEventEnd │ 831 │
└──────────────────────────┴───────────────────┘
Run a script
perf --script <filename> [--engine <chromium|firefox|webkit>]
Scripts must be modules of the form:
module.exports = async () => {
// page, browser, engine, engineName, context available globally
await page.goto("https://google.com")
}
Record Video
Include the --record-video
in the arguments list to save a local file. Note this feature only works in script mode for Chromium browsers
perf --script <filename> --record-video <video-name>
File will be saved to <video-name>.mp4