redfin/babel-vs-v8-perf-test

Name: babel-vs-v8-perf-test

Owner: Redfin

Description: Perf testing for Babel vs V8

Created: 2016-04-16 08:16:33.0

Updated: 2016-08-14 01:01:50.0

Pushed: 2016-04-26 20:28:43.0

Homepage: null

Size: 7

Language: JavaScript

GitHub Committers

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README

ES6 Performance in V8 transpiled vs untranspiled

See the blog post

Results

Here's the output on my laptop:

ing array-includes
Node results: min 865.39 ms max: 887.29 ms mean: 877.9619999999999 ms
Babel results: min 870.71 ms max: 906.53 ms mean: 888.872 ms
node is 1.2% faster
ing default-parameters
Node results: min 719.47 ms max: 1165.03 ms mean: 899.086 ms
Babel results: min 716.88 ms max: 741.43 ms mean: 729.324 ms
babel is 18.9% faster
ing destructuring
Node results: min 845.47 ms max: 873.15 ms mean: 859.4529999999999 ms
Babel results: min 830.17 ms max: 867.17 ms mean: 852.933 ms
babel is 0.8% faster
ing proxy
Node results: min 715.15 ms max: 1186.28 ms mean: 1063.049 ms
Babel results: min 726.51 ms max: 1180.13 ms mean: 1108.535 ms
node is 4.1% faster
ing rest
Node results: min 1230.66 ms max: 1296.05 ms mean: 1255.2350000000001 ms
Babel results: min 1230.19 ms max: 1292.25 ms mean: 1252.0760000000002 ms
babel is 0.3% faster
ing spread
Node results: min 827.29 ms max: 855.65 ms mean: 844.019 ms
Babel results: min 833.51 ms max: 861.93 ms mean: 847.01 ms
node is 0.4% faster
ing to-primitive
Node results: min 1034.85 ms max: 1146.37 ms mean: 1093.8049999999998 ms
Babel results: min 1030.12 ms max: 1104.63 ms mean: 1074.011 ms
babel is 1.8% faster
ing to-string-tag
Node results: min 715.22 ms max: 1157.05 ms mean: 933.577 ms
Babel results: min 710.71 ms max: 1168.74 ms mean: 896.434 ms
babel is 4% faster
ing unicode-regex
Node results: min 1013.32 ms max: 1065.64 ms mean: 1048.119 ms
Babel results: min 1037.11 ms max: 1078.2 ms mean: 1057.127 ms
node is 0.9% faster

Running the test

You have to have node v6 installed. I use n

6.0.0

 install : node-v6.0.0
   mkdir : /usr/local/n/versions/node/6.0.0
   fetch : https://nodejs.org/dist/v6.0.0/node-v6.0.0-darwin-x64.tar.gz
nstalled : v6.0.0

Then run the tests

 test.js

Contributing

Please do! Submit a pull request with additional tests in tests/; I'll update the results periodically with additional test results.