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https://github.com/prantlf/ecmascript-parser-benchmark
Compares the speed and package size of various ECMAScript parsers and code generators.
https://github.com/prantlf/ecmascript-parser-benchmark
benchmark code-generator ecmascript ecmascript-parser parser
Last synced: 1 day ago
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Compares the speed and package size of various ECMAScript parsers and code generators.
- Host: GitHub
- URL: https://github.com/prantlf/ecmascript-parser-benchmark
- Owner: prantlf
- License: mit
- Created: 2022-01-02T12:22:09.000Z (over 2 years ago)
- Default Branch: master
- Last Pushed: 2022-09-10T07:40:05.000Z (almost 2 years ago)
- Last Synced: 2024-03-19T10:35:02.447Z (4 months ago)
- Topics: benchmark, code-generator, ecmascript, ecmascript-parser, parser
- Language: JavaScript
- Homepage:
- Size: 48.8 KB
- Stars: 8
- Watchers: 3
- Forks: 1
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
Lists
- awesome-stars - prantlf/ecmascript-parser-benchmark - Compares the speed and package size of various ECMAScript parsers and code generators. (JavaScript)
README
# ECMAScript Parser and Code Generator Benchmark
Compares the speed and package size of various ECMAScript parsers and code generators.
The new contender `meriyah` runs twice as fast as the old bard `esprima`. Babel produces an AST, which is not compatible with the other parsers.
Generating code with `astring` is faster than with `escodegen`.
## Synopsis
git clone https://github.com/prantlf/ecmascript-parser-benchmark.git
cd ecmascript-parser-benchmark
pnpm i
npm start
## Parsing Speed
$ node perf/script && node perf/module && \
node perf/script --locations && node perf/module --locations
Parsing jquery.js as a script by...
esprima x 91.91 ops/sec ±0.85% (78 runs sampled)
acorn x 91.55 ops/sec ±0.49% (79 runs sampled)
babel x 46.68 ops/sec ±2.53% (62 runs sampled)
hermes x 26.12 ops/sec ±4.30% (47 runs sampled)
meriyah x 151 ops/sec ±2.41% (71 runs sampled)
kataw x 87.17 ops/sec ±3.11% (65 runs sampled)
seafox x 109 ops/sec ±1.81% (80 runs sampled)
cherow x 142 ops/sec ±1.78% (78 runs sampled)
escaya x 93.83 ops/sec ±2.06% (69 runs sampled)
tenko x 62.02 ops/sec ±7.86% (67 runs sampled)
tree-sitter x 29.87 ops/sec ±1.67% (46 runs sampled)
Parsing collection-view.js as a module by...
esprima x 1,581 ops/sec ±0.73% (92 runs sampled)
acorn x 1,502 ops/sec ±0.44% (93 runs sampled)
babel x 1,278 ops/sec ±1.02% (91 runs sampled)
hermes x 532 ops/sec ±0.93% (92 runs sampled)
meriyah x 3,107 ops/sec ±1.16% (94 runs sampled)
kataw x 2,491 ops/sec ±0.79% (96 runs sampled)
seafox x 2,613 ops/sec ±0.58% (90 runs sampled)
cherow x 2,877 ops/sec ±1.42% (91 runs sampled)
escaya x 2,760 ops/sec ±0.82% (94 runs sampled)
tenko x 1,183 ops/sec ±0.90% (93 runs sampled)
tree-sitter x 479 ops/sec ±0.71% (84 runs sampled)
Parsing jquery.js as a script with locations by...
esprima x 79.59 ops/sec ±0.46% (69 runs sampled)
acorn x 53.86 ops/sec ±2.22% (59 runs sampled)
babel x 40.50 ops/sec ±6.18% (55 runs sampled)
hermes x 26.04 ops/sec ±4.52% (48 runs sampled)
meriyah x 108 ops/sec ±1.07% (71 runs sampled)
kataw x 89.44 ops/sec ±3.12% (67 runs sampled)
seafox x 86.19 ops/sec ±3.31% (69 runs sampled)
cherow x 82.27 ops/sec ±2.72% (64 runs sampled)
escaya x 83.81 ops/sec ±2.18% (72 runs sampled)
tenko x 51.95 ops/sec ±7.58% (58 runs sampled)
tree-sitter x 30.92 ops/sec ±1.55% (49 runs sampled)
Parsing collection-view.js as a module with locations by...
esprima x 1,424 ops/sec ±0.63% (94 runs sampled)
acorn x 1,349 ops/sec ±0.66% (93 runs sampled)
babel x 1,213 ops/sec ±1.01% (90 runs sampled)
hermes x 537 ops/sec ±0.85% (93 runs sampled)
meriyah x 2,514 ops/sec ±0.50% (92 runs sampled)
kataw x 2,506 ops/sec ±0.68% (93 runs sampled)
seafox x 2,398 ops/sec ±0.67% (91 runs sampled)
cherow x 2,595 ops/sec ±0.86% (94 runs sampled)
escaya x 2,549 ops/sec ±0.66% (93 runs sampled)
tenko x 1,157 ops/sec ±0.77% (93 runs sampled)
tree-sitter x 469 ops/sec ±1.06% (81 runs sampled)
The `hermes` parser always creates an AST with source code locations. They cannot be disabled to gain more performance.
The `tree-sitter` parser always creates an AST with source code locations. They cannot be disabled to gain more performance. It makes no difference between a script and a module either.
## Code Generating Speed
$ node perf/generator && node perf/generator --source-map
Generating code for an AST from jquery.js by...
escodegen x 91.99 ops/sec ±1.57% (73 runs sampled)
astring x 362 ops/sec ±1.21% (83 runs sampled)
babel x 28.71 ops/sec ±4.65% (52 runs sampled)
Generating code with source maps for an AST from jquery.js by...
escodegen x 4.47 ops/sec ±6.08% (16 runs sampled)
astring x 98.70 ops/sec ±1.40% (72 runs sampled)
babel x 16.80 ops/sec ±6.85% (33 runs sampled)
## Exported Parser Size
$ package-size esprima acorn @babel/parser hermes meriyah seafox kataw \
cherow @azariasb/escaya tenko tree-sitter tree-sitter-javascript
package size minified gzipped
[email protected] 278.47 KB 132.14 KB 28.59 KB
[email protected] 206.72 KB 107.29 KB 30.81 KB
@babel/[email protected] 469.98 KB 271 KB 69.84 KB
[email protected] 308.87 KB 53.94 KB 17.98 KB
[email protected] 128.94 KB 127.33 KB 40.25 KB
[email protected] 95 KB 93.41 KB 25.57 KB
[email protected] 297.65 KB 291.29 KB 59.47 KB
[email protected] 300.63 KB 89.85 KB 25.12 KB
@azariasb/[email protected] 98.24 KB 96.53 KB 25.97 KB
[email protected] 371.71 KB 142.41 KB 39.75 KB
[email protected] 51.28 KB 22.81 KB 6.8 KB
[email protected] 37.99 KB 29.81 KB 2.68 KB
## Exported Code Generator Size
$ package-size escodegen astring
package size minified gzipped
[email protected] 278.79 KB 96.82 KB 25.41 KB
[email protected] 35.61 KB 15.4 KB 4.26 KB
Estimating the size of `@babel/generator` failed.
## Contributing
In lieu of a formal styleguide, take care to maintain the existing coding style. Lint and test your code.
## License
Copyright (c) 2022 Ferdinand Prantl
Licensed under the MIT license.