Update README's

This commit is contained in:
Nicolas Gallagher
2018-02-08 16:09:56 -08:00
parent 73b459e770
commit fb4635e013
3 changed files with 27 additions and 49 deletions

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@@ -19,7 +19,7 @@ rewriting existing code. React Native for Web can also render to HTML and
critical CSS on the server using Node.js.
Who is using React Native for Web? [Twitter](https://mobile.twitter.com),
[Major League Soccer](https://matchcenter.mlssoccer.com), [The
[Major League Soccer](https://matchcenter.mlssoccer.com), Playstation, Uber, [The
Times](https://github.com/newsuk/times-components), [React Native's
documentation](http://facebook.github.io/react-native/).

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@@ -19,12 +19,9 @@ yarn benchmarks --watch
## Notes
These benchmarks are approximations of extreme cases that libraries may
encounter. The deep and wide tree cases look at the performance of mounting and
rendering large trees of styled elements. The dynamic case looks at the
performance of repeated style updates to a large mounted tree. Some libraries
must inject new styles for each "dynamic style", whereas others may not.
Libraries without support for dynamic styles (i.e., they rely on user-authored
inline styles) do not include a corresponding benchmark.
encounter. Their purpose is to provide an early-warning signal for performance
regressions. Each test report includes the mean and standard deviation of the
timings, and approximations of the time spent in scripting (S) and layout (L).
The components used in the render benchmarks are simple enough to be
implemented by multiple UI or style libraries. The benchmark implementations
@@ -33,6 +30,19 @@ functionality_.
No benchmark will run for more than 20 seconds.
### Mount deep/wide tree
These cases look at the performance of mounting and rendering large trees of
elements that use static styles.
### Update dynamic styles
This case looks at the performance of repeated style updates to a large mounted
tree. Some libraries choose to inject new styles for each "dynamic style",
whereas others choose to use inline styles. Libraries without built-in support
for dynamic styles (i.e., they rely on user-authored inline styles) are not
included.
## Example results
### MacBook Pro (2011)
@@ -41,52 +51,20 @@ MacBook Pro (13-inch, Early 2011); 2.3 GHz Intel Core i5; 8 GB 1333 MHz DDR3 RAM
Typical render timings: mean ± standard deviations.
| Implementation | Mount deep tree (ms) | Mount wide tree (ms) | Dynamic update (ms) |
| Implementation | Mount deep tree (ms) | Mount wide tree (ms) | Dynamic update (ms) |
| :--- | ---: | ---: | ---: |
| `css-modules` | `15.23` `±04.31` | `21.27` `±07.03` | - |
| `react-native-web@0.3.2` | `17.52` `±04.44` | `24.14` `±04.39` | `15.03` `±02.22` |
| `inline-styles` | `50.06` `±06.70` | `76.38` `±09.58` | `06.43` `±02.02` |
Other libraries
| Implementation | Mount deep tree (ms) | Mount wide tree (ms) | Dynamic update (ms) |
| :--- | ---: | ---: | ---: |
| `aphrodite@1.2.5` | `17.27` `±05.96` | `24.89` `±08.36` | - |
| `glamor@2.20.40` | `21.59` `±05.38` | `27.93` `±07.56` | ‡ |
| `emotion@8.0.12` | `21.07` `±04.16` | `31.40` `±09.40` | ‡ `19.80` `±13.56` |
| `styletron-react@3.0.3` | `23.55` `±05.14` | `34.26` `±07.58` | `10.39` `±02.94` |
| `react-fela@5.0.0` | `27.58` `±04.26` | `39.54` `±05.46` | `10.93` `±01.69` |
| `react-jss@8.2.1` | `27.31` `±07.87` | `40.74` `±10.67` | - |
| `styled-jsx@2.2.1` | `27.46` `±07.85` | `41.47` `±11.53` | `29.16` `±09.98` |
| `styled-components@2.4.0` | `43.89` `±06.99` | `63.26` `±09.02` | `16.17` `±03.71` |
| `reactxp@0.51.0-alpha.9` | `51.86` `±07.21` | `78.80` `±11.85` | `15.04` `±03.92` |
| `radium@0.21.0` | `101.06` `±13.00` | `144.46` `±16.94` | `17.44` `±03.59` |
| `css-modules` | `30.19` `±04.84` | `38.25` `±04.85` | - |
| `react-native-web@0.4.0` | `36.40` `±04.98` | `51.28` `±05.58` | `19.36` `±02.56` |
| `inline-styles` | `64.12` `±07.69` | `94.49` `±11.34` | `09.84` `±02.36` |
### Moto G4
Moto G4 (Android 7); Octa-core (4x1.5 GHz & 4x1.2 Ghz); 2 GB RAM. Google Chrome 63
Moto G4 (Android 7); Octa-core (4x1.5 GHz & 4x1.2 Ghz); 2 GB RAM. Google Chrome 63.
Typical render timings: mean ± standard deviations.
| Implementation | Mount deep tree (ms) | Mount wide tree (ms) | Dynamic update (ms) |
| Implementation | Mount deep tree (ms) | Mount wide tree (ms) | Dynamic update (ms) |
| :--- | ---: | ---: | ---: |
| `css-modules` | `56.18` 19.54` | `75.95` `±23.55` | - |
| `react-native-web@0.3.2` | `68.53` 21.00` | `101.03` 25.32` | `60.57` `±09.07` |
| `inline-styles` | `140.32` `±23.91` | `208.55` 35.25` | `20.36` `±04.92` |
Other libraries
| Implementation | Mount deep tree (ms) | Mount wide tree (ms) | Dynamic update (ms) |
| :--- | ---: | ---: | ---: |
| `aphrodite@1.2.5` | `58.77` `±19.73` | `85.83` `±24.64` | - |
| `glamor@2.20.40` | `81.05` `±15.87` | `104.02` `±20.92` | ‡ |
| `emotion@8.0.12` | `77.12` `±19.61` | `112.04` `±24.43` | ‡ `80.40` `±40.56` |
| `styletron-react@3.0.3` | `91.00` `±17.95` | `130.49` `±20.06` | `39.70` `±06.85` |
| `react-fela@5.0.0` | `101.36` `±19.55` | `142.18` `±21.87` | `43.64` `±12.24` |
| `styled-jsx@2.2.1` | `101.60` `±25.26` | `144.12` `±30.79` | `115.63` `±32.77` |
| `react-jss@8.2.1` | `112.46` `±32.07` | `165.96` `±42.54` | - |
| `styled-components@2.4.0` | `159.85` `±24.30` | `231.00` `±31.34` | `53.86` `±13.40` |
| `reactxp@0.51.0-alpha.9` | `182.05` `±30.72` | `261.25` `±35.54` | `58.20` `±08.62` |
| `radium@0.21.0` | `323.93` `±41.46` | `464.70` `±53.93` | `59.13` `±09.76` |
‡Glamor essentially crashes the browser tab. Emotion gets slower every iteration.
| `css-modules` | `98.24` 20.26` | `143.75` `±25.50` | - |
| `react-native-web@0.4.0` | `131.46` 18.96` | `174.70` 14.88` | `60.87` `±06.32` |
| `inline-styles` | `184.58` `±26.23` | `273.86` 26.23` | `30.28` `±07.44` |

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@@ -40,7 +40,7 @@ class ReportCard extends React.PureComponent {
{fmt(mean)} ±{fmt(stdDev)} ms
</Text>
<Text style={[styles.smallText, styles.monoFont]}>
(S/L) {fmt(meanScripting)} / {fmt(meanLayout)} ms
(S/L) {fmt(meanScripting)}/{fmt(meanLayout)} ms
</Text>
</Fragment>
) : (