react-ssr-benchmarks

The purpose of this repo is to host runnable benchmarks of React's server-side rendering across different versions.

I've browserified React into different bundles which exist in the react/ folder.

The benchmarks are ran with NODE_ENV=production so that checks and warnings are skipped.

Instructions

1. Clone this repo.
2. Run npm install.
3. Run npm run bench.

API

If you wish to run your own benchmarks (say you're developing your own renderToString function) you can do so programatically:

const benchmarks = require('react-ssr-benchmarks')
 
benchmarks()

The benchmarks function is configurable. The following config will only run the benchmarks on React versions 14 and 15.

const benchmarks = require('react-ssr-benchmarks')
 
benchmarks({
  versions: {
    12: false,
    13: false,
    14: true,
    15: true,
  }
})

You don't have to set 12 and 13 to false explicitly, they can be omitted and won't be ran.

const benchmarks = require('react-ssr-benchmarks')
 
benchmarks({
  versions: {
    14: true,
    15: true,
  }
})

If you wish to change the component or how it is rendered in the benchmark, we've got options for you:

const benchmarks = require('react-ssr-benchmarks')
 
benchmarks({
  versions: {
    14: true,
    15: true,
  },
 
  getComponent: React => class extends React.Component {
    render() {
      return <div>My own very simple Test Component. Here is a prop: {this.props.foo}</div>
    }
  },
 
  props: {
    foo: 'baz',
  },
})

Finally, to add your own suite of tests to run against React you can pass in a test Array:

const benchmarks = require('react-ssr-benchmarks')
 
benchmarks({
  versions: {
    14: true,
    15: true,
  },
 
  test: [{
    name: 'My own super fast renderToString',
    React: React14,
    ReactDOMServer: {
      renderToString() {
        // my own implementation here
      }
    },
  }, {
    name: 'A streaming version of renderToString compatible with React 15',
    React: React15,
    ReactDOMServer: {
      renderToString() {
        // another r2s implementation here
      }
    },
  }]
})

Results

Simple

12 x 41,539 ops/sec ±1.95% (86 runs sampled)
13 x 49,345 ops/sec ±3.08% (82 runs sampled)
14 x 65,459 ops/sec ±2.99% (83 runs sampled)
15 x 103,724 ops/sec ±2.55% (82 runs sampled)

Complex

12 x 44.76 ops/sec ±1.76% (57 runs sampled)
13 x 49.06 ops/sec ±3.41% (63 runs sampled)
14 x 70.77 ops/sec ±2.07% (61 runs sampled)
15 x 65.38 ops/sec ±4.63% (63 runs sampled)

License

MIT