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Update benchmarks
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Natalie Weizenbaum
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132
perf.md
132
perf.md
@ -3,8 +3,8 @@ the benefit Dart Sass could provide relative to other implementations.
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This was tested against:
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* libsass d4d74ef5 and sassc 66f0ef3 compiled with g++ (Debian 10.2.0-16) 10.2.0.
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* Dart Sass ae967c7 on Dart 2.10.4 (stable) (Wed Nov 11 13:35:58 2020 +0100) on "linux_x64" and Node v14.7.0.
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* libsass da91d985 and sassc 66f0ef3 compiled with g++ (Debian 10.3.0-11) 10.3.0.
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* Dart Sass 7934ad9 on Dart 2.14.1 (stable) (Wed Sep 8 13:33:08 2021 +0200) on "linux_x64" and Node v16.10.0.
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on Debian x64 with Intel Core i7-8650U CPU @ 1.90GHz.
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@ -16,139 +16,139 @@ I ran five instances of each configuration and recorded the fastest time.
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Running on a file containing 4 instances of `.foo {a: b}`:
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* sassc: 0.002s
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* Dart Sass from a script snapshot: 0.179s
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* sassc: 0.003s
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* Dart Sass from a script snapshot: 0.191s
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* Dart Sass native executable: 0.009s
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* Dart Sass on Node.js: 0.248s
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* Dart Sass on Node.js: 0.224s
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Based on these numbers, Dart Sass from a native executable is approximately:
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* 4.5x slower than libsass
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* 27.6x faster than Dart Sass on Node
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* 3.0x slower than libsass
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* 24.9x faster than Dart Sass on Node
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## Large Plain CSS
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Running on a file containing 2^17 instances of `.foo {a: b}`:
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* sassc: 1.770s
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* Dart Sass from a script snapshot: 1.548s
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* Dart Sass native executable: 1.379s
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* Dart Sass on Node.js: 2.587s
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* sassc: 1.612s
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* Dart Sass from a script snapshot: 1.663s
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* Dart Sass native executable: 1.485s
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* Dart Sass on Node.js: 2.583s
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Based on these numbers, Dart Sass from a native executable is approximately:
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* 1.3x faster than libsass
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* 1.9x faster than Dart Sass on Node
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* 1.1x faster than libsass
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* 1.7x faster than Dart Sass on Node
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## Preceding Sparse `@extend`
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Running on a file containing `.x {@extend .y}`, 2^17 instances of `.foo {a: b}`, and then `.y {a: b}`:
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* sassc: 1.797s
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* Dart Sass from a script snapshot: 1.594s
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* Dart Sass native executable: 1.490s
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* Dart Sass on Node.js: 2.783s
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* sassc: 1.644s
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* Dart Sass from a script snapshot: 1.721s
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* Dart Sass native executable: 1.506s
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* Dart Sass on Node.js: 2.613s
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Based on these numbers, Dart Sass from a native executable is approximately:
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* 1.2x faster than libsass
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* 1.9x faster than Dart Sass on Node
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* 1.1x faster than libsass
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* 1.7x faster than Dart Sass on Node
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## Following Sparse `@extend`
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Running on a file containing `.y {a: b}`, 2^17 instances of `.foo {a: b}`, and then `.x {@extend .y}`:
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* sassc: 1.902s
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* Dart Sass from a script snapshot: 1.587s
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* Dart Sass native executable: 1.425s
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* Dart Sass on Node.js: 2.550s
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* sassc: 1.643s
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* Dart Sass from a script snapshot: 1.655s
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* Dart Sass native executable: 1.504s
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* Dart Sass on Node.js: 2.625s
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Based on these numbers, Dart Sass from a native executable is approximately:
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* 1.3x faster than libsass
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* 1.8x faster than Dart Sass on Node
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* 1.1x faster than libsass
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* 1.7x faster than Dart Sass on Node
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## Preceding Dense `@extend`
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Running on a file containing `.bar {@extend .foo}` followed by 2^17 instances of `.foo {a: b}`:
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* sassc: 2.556s
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* Dart Sass from a script snapshot: 2.426s
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* Dart Sass native executable: 2.293s
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* Dart Sass on Node.js: 4.843s
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* sassc: 2.331s
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* Dart Sass from a script snapshot: 2.433s
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* Dart Sass native executable: 2.264s
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* Dart Sass on Node.js: 5.822s
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Based on these numbers, Dart Sass from a native executable is approximately:
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* 1.1x faster than libsass
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* 2.1x faster than Dart Sass on Node
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* identical to libsass
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* 2.6x faster than Dart Sass on Node
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## Following Dense `@extend`
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Running on a file containing 2^17 instances of `.foo {a: b}` followed by `.bar {@extend .foo}`:
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* sassc: 2.567s
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* Dart Sass from a script snapshot: 2.270s
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* Dart Sass native executable: 2.174s
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* Dart Sass on Node.js: 4.285s
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* sassc: 2.367s
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* Dart Sass from a script snapshot: 2.367s
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* Dart Sass native executable: 2.189s
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* Dart Sass on Node.js: 5.612s
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Based on these numbers, Dart Sass from a native executable is approximately:
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* 1.2x faster than libsass
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* 2.0x faster than Dart Sass on Node
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* 1.1x faster than libsass
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* 2.6x faster than Dart Sass on Node
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## Bootstrap
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Running on a file containing 16 instances of importing the Bootstrap framework:
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* sassc: 0.798s
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* Dart Sass from a script snapshot: 1.417s
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* Dart Sass native executable: 0.708s
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* Dart Sass on Node.js: 2.832s
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* sassc: 0.791s
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* Dart Sass from a script snapshot: 1.707s
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* Dart Sass native executable: 0.778s
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* Dart Sass on Node.js: 3.101s
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Based on these numbers, Dart Sass from a native executable is approximately:
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* 1.1x faster than libsass
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* identical to libsass
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* 4.0x faster than Dart Sass on Node
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## a11ycolor
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Running on a file containing test cases for a computation-intensive color-processing library:
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* sassc: 0.239s
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* Dart Sass from a script snapshot: 0.661s
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* Dart Sass native executable: 0.319s
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* Dart Sass on Node.js: 0.882s
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* sassc: 0.207s
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* Dart Sass from a script snapshot: 0.700s
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* Dart Sass native executable: 0.267s
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* Dart Sass on Node.js: 0.953s
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Based on these numbers, Dart Sass from a native executable is approximately:
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* 1.3x slower than libsass
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* 2.8x faster than Dart Sass on Node
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## Susy
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Running on a file containing test cases for the computation-intensive Susy grid framework:
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* sassc: 0.201s
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* Dart Sass from a script snapshot: 0.706s
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* Dart Sass native executable: 0.141s
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* Dart Sass on Node.js: 1.187s
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Based on these numbers, Dart Sass from a native executable is approximately:
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* 1.4x faster than libsass
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* 8.4x faster than Dart Sass on Node
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* 3.6x faster than Dart Sass on Node
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## Duomo
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Running on a file containing the output of the numerically-intensive Duomo framework:
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Running on a file containing the output of the numerically-intensive Duomo framework (skipping LibSass due to module system use):
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* Dart Sass from a script snapshot: 2.017s
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* Dart Sass native executable: 1.213s
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* Dart Sass on Node.js: 3.632s
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* Dart Sass from a script snapshot: 2.298s
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* Dart Sass native executable: 1.361s
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* Dart Sass on Node.js: 4.659s
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Based on these numbers, Dart Sass from a native executable is approximately:
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* 3.0x faster than Dart Sass on Node
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* 3.4x faster than Dart Sass on Node
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## Carbon
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Running on a file containing the output of the import-intensive Carbon framework:
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* sassc: 6.576s
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* Dart Sass from a script snapshot: 9.662s
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* Dart Sass native executable: 9.874s
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* Dart Sass on Node.js: 25.425s
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Based on these numbers, Dart Sass from a native executable is approximately:
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* 1.5x slower than libsass
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* 2.6x faster than Dart Sass on Node
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# Prior Measurements
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