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https://github.com/v8/web-tooling-benchmark

JavaScript benchmark for common web developer workloads
https://github.com/v8/web-tooling-benchmark

benchmark benchmarking benchmarking-suite javascript node-js nodejs performance performance-testing v8 v8-javascript-engine v8js

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JavaScript benchmark for common web developer workloads

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README 

        
# Web Tooling Benchmark



[![Build Status](https://travis-ci.org/v8/web-tooling-benchmark.svg?branch=master)](https://travis-ci.org/v8/web-tooling-benchmark) [![styled with prettier](https://img.shields.io/badge/styled_with-prettier-ff69b4.svg)](https://github.com/prettier/prettier)



This is a benchmark suite designed to measure the JavaScript-related

workloads commonly used by web developers, such as the

core workloads in popular tools like [Babel](https://github.com/babel/babel)

or [TypeScript](https://github.com/Microsoft/TypeScript). The goal is to measure **only** the

JavaScript performance aspect (which is affected by the JavaScript engine) and not measure I/O

or other unrelated aspects.



See the [in-depth

analysis](https://github.com/v8/web-tooling-benchmark/blob/master/docs/in-depth.md)

for a detailed description of the tests included in this benchmark suite.



The latest browser version of the benchmark is available at

.



## Support



The Web Tooling Benchmark supports the latest [active

LTS](https://github.com/nodejs/Release#release-schedule) version of Node.js. To see the supported

Node.js versions of the current version of the benchmark, see [the `node_js` section of our CI

configuration](https://github.com/v8/web-tooling-benchmark/blob/master/.travis.yml).



## Building



To build the benchmark suite, run



```

$ npm install

```



assuming that you have a working [Node.js](https://nodejs.org) installation. Once

the command is done, it produces a bundled version that is suitable to run in

JS shells (i.e. `d8`, `jsc` or `jsshell`) in `dist/cli.js` and another bundle

in `dist/browser.js` that is used by the browser version in `dist/index.html`.



To build an individual benchmark rather than the entire suite, pass the `--env.only`

CLI flag:



```

$ npm run build -- --env.only babel

```



## Running



You can either run the benchmark suite directly via [Node](https://nodejs.org/),

i.e. like this:



```

$ node dist/cli.js

Running Web Tooling Benchmark v0.5.2…

-------------------------------------

         acorn:  5.50 runs/s

         babel:  6.10 runs/s

  babel-minify:  9.13 runs/s

       babylon:  8.00 runs/s

         buble:  4.77 runs/s

          chai: 14.47 runs/s

  coffeescript:  5.62 runs/s

        espree:  4.05 runs/s

       esprima:  6.68 runs/s

        jshint:  7.84 runs/s

         lebab:  7.52 runs/s

       postcss:  5.06 runs/s

       prepack:  6.26 runs/s

      prettier:  5.97 runs/s

    source-map:  8.60 runs/s

        terser: 16.40 runs/s

    typescript: 10.04 runs/s

     uglify-js:  3.81 runs/s

-------------------------------------

Geometric mean:  6.98 runs/s

```



Or you open a web browser and point it to `dist/index.html`, or you can use one

of the engine JS shells to run the special bundle in `dist/cli.js`. The easiest

way to install recent versions of the supported JS engine shells is to run

[`jsvu`](https://github.com/GoogleChromeLabs/jsvu). Afterwards, you can run the

benchmark as follows:



```sh

$ chakra dist/cli.js

$ javascriptcore dist/cli.js

$ spidermonkey dist/cli.js

$ v8 dist/cli.js

```



To run an individual benchmark rather than the entire suite via Node, pass the

`--only` CLI flag:



```

$ npm run build -- --env.only babel && npm run benchmark

```