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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: about 2 months 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 (about 3 years ago)
- Default Branch: master
- Last Pushed: 2024-07-19T06:42:48.000Z (6 months ago)
- Last Synced: 2024-11-07T10:42:37.856Z (3 months ago)
- Topics: benchmark, code-generator, ecmascript, ecmascript-parser, parser
- Language: JavaScript
- Homepage:
- Size: 227 KB
- Stars: 11
- Watchers: 3
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
Awesome Lists containing this project
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.js
❯ node perf/script && node perf/module && \
node perf/script --locations && node perf/module --locations
Parsing jquery.js as a script by...
esprima x 92.34 ops/sec ±0.82% (79 runs sampled)
acorn x 94.69 ops/sec ±0.61% (81 runs sampled)
babel x 45.87 ops/sec ±2.62% (61 runs sampled)
hermes x 23.77 ops/sec ±5.10% (44 runs sampled)
meriyah x 182 ops/sec ±0.83% (84 runs sampled)
kataw x 115 ops/sec ±1.63% (84 runs sampled)
seafox x 104 ops/sec ±1.95% (76 runs sampled)
cherow x 135 ops/sec ±2.11% (77 runs sampled)
escaya x 91.67 ops/sec ±1.76% (70 runs sampled)
tenko x 68.73 ops/sec ±1.37% (71 runs sampled)
Parsing collection-view.js as a module by...
esprima x 1,558 ops/sec ±0.73% (91 runs sampled)
acorn x 1,467 ops/sec ±0.58% (94 runs sampled)
babel x 1,228 ops/sec ±3.77% (88 runs sampled)
hermes x 460 ops/sec ±0.58% (93 runs sampled)
meriyah x 2,659 ops/sec ±2.09% (86 runs sampled)
kataw x 2,234 ops/sec ±1.03% (89 runs sampled)
seafox x 2,272 ops/sec ±3.51% (89 runs sampled)
cherow x 2,911 ops/sec ±1.04% (92 runs sampled)
escaya x 2,456 ops/sec ±2.24% (90 runs sampled)
tenko x 1,152 ops/sec ±1.10% (90 runs sampled)
tree-sitter x 325 ops/sec ±1.09% (86 runs sampled)
Parsing jquery.js as a script with locations by...
esprima x 75.89 ops/sec ±1.98% (66 runs sampled)
acorn x 55.51 ops/sec ±2.35% (59 runs sampled)
babel x 43.29 ops/sec ±3.45% (58 runs sampled)
hermes x 24.15 ops/sec ±4.71% (44 runs sampled)
meriyah x 91.36 ops/sec ±3.27% (67 runs sampled)
kataw x 86.75 ops/sec ±2.78% (65 runs sampled)
seafox x 79.40 ops/sec ±2.77% (69 runs sampled)
cherow x 85.76 ops/sec ±2.68% (64 runs sampled)
escaya x 81.44 ops/sec ±2.02% (70 runs sampled)
tenko x 55.39 ops/sec ±2.80% (59 runs sampled)
Parsing collection-view.js as a module with locations by...
esprima x 1,368 ops/sec ±1.39% (92 runs sampled)
acorn x 1,190 ops/sec ±0.95% (92 runs sampled)
babel x 1,151 ops/sec ±0.88% (91 runs sampled)
hermes x 426 ops/sec ±1.06% (87 runs sampled)
meriyah x 2,206 ops/sec ±0.74% (90 runs sampled)
kataw x 2,071 ops/sec ±1.26% (86 runs sampled)
seafox x 2,057 ops/sec ±0.85% (90 runs sampled)
cherow x 2,228 ops/sec ±0.84% (90 runs sampled)
escaya x 2,171 ops/sec ±1.11% (85 runs sampled)
tenko x 1,015 ops/sec ±1.09% (90 runs sampled)
tree-sitter x 309 ops/sec ±1.31% (87 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.
The `tree-sitter` parser failed witn an invalid argument when parsing `jquery.js`.
### Bun
❯ bun perf/script.js && bun perf/module.js && \
bun perf/script --locations && node perf/module --locations
Parsing jquery.js as a script by...
esprima x 60.09 ops/sec ±1.71% (63 runs sampled)
acorn x 68.57 ops/sec ±1.53% (71 runs sampled)
babel x 44.51 ops/sec ±1.68% (58 runs sampled)
hermes x 34.13 ops/sec ±1.99% (60 runs sampled)
meriyah x 166 ops/sec ±1.38% (77 runs sampled)
kataw x 108 ops/sec ±1.67% (72 runs sampled)
seafox x 123 ops/sec ±2.14% (73 runs sampled)
cherow x 126 ops/sec ±1.90% (72 runs sampled)
escaya x 105 ops/sec ±1.94% (69 runs sampled)
tenko x 56.54 ops/sec ±3.48% (60 runs sampled)
Parsing collection-view.js as a module by...
esprima x 1,034 ops/sec ±2.60% (89 runs sampled)
acorn x 1,102 ops/sec ±1.26% (92 runs sampled)
babel x 860 ops/sec ±3.69% (81 runs sampled)
hermes x 572 ops/sec ±5.01% (92 runs sampled)
meriyah x 2,681 ops/sec ±0.82% (92 runs sampled)
kataw x 2,267 ops/sec ±0.83% (93 runs sampled)
seafox x 2,353 ops/sec ±0.97% (91 runs sampled)
cherow x 2,142 ops/sec ±1.29% (85 runs sampled)
escaya x 2,117 ops/sec ±0.98% (91 runs sampled)
tenko x 988 ops/sec ±1.21% (88 runs sampled)
Parsing jquery.js as a script with locations by...
esprima x 59.12 ops/sec ±1.38% (62 runs sampled)
acorn x 62.63 ops/sec ±0.94% (66 runs sampled)
babel x 43.48 ops/sec ±1.76% (58 runs sampled)
hermes x 38.07 ops/sec ±1.76% (51 runs sampled)
meriyah x 138 ops/sec ±1.70% (79 runs sampled)
kataw x 119 ops/sec ±2.44% (77 runs sampled)
seafox x 117 ops/sec ±1.80% (75 runs sampled)
cherow x 113 ops/sec ±1.60% (74 runs sampled)
escaya x 100 ops/sec ±1.56% (74 runs sampled)
tenko x 60.35 ops/sec ±1.76% (63 runs sampled)
Parsing collection-view.js as a module with locations by...
esprima x 882 ops/sec ±4.56% (85 runs sampled)
acorn x 985 ops/sec ±0.79% (91 runs sampled)
babel x 861 ops/sec ±1.49% (87 runs sampled)
hermes x 530 ops/sec ±5.70% (89 runs sampled)
meriyah x 1,847 ops/sec ±1.86% (85 runs sampled)
kataw x 1,795 ops/sec ±1.02% (83 runs sampled)
seafox x 1,674 ops/sec ±0.89% (85 runs sampled)
cherow x 1,491 ops/sec ±2.34% (82 runs sampled)
escaya x 1,661 ops/sec ±1.53% (88 runs sampled)
tenko x 908 ops/sec ±1.68% (87 runs sampled)
The `tree-sitter` parser uses native libraries and `node-gyp`, which doesn't run in Bun.
## Code Generating Speed
### Node.js
❯ node perf/generator && node perf/generator --source-map
Generating code for an AST from jquery.js by...
escodegen x 104 ops/sec ±0.92% (76 runs sampled)
astring x 465 ops/sec ±0.84% (90 runs sampled)
babel x 61.33 ops/sec ±0.80% (64 runs sampled)
Generating code with source maps for an AST from jquery.js by...
escodegen x 4.67 ops/sec ±2.16% (16 runs sampled)
astring x 97.91 ops/sec ±2.25% (72 runs sampled)
babel x 34.96 ops/sec ±3.29% (61 runs sampled)
### Bun
❯ bun perf/generator.js && bun perf/generator.js --source-map
Generating code for an AST from jquery.js by...
escodegen x 76.41 ops/sec ±2.72% (66 runs sampled)
astring x 483 ops/sec ±2.03% (78 runs sampled)
babel x 59.58 ops/sec ±0.89% (62 runs sampled)
Generating code with source maps for an AST from jquery.js by...
escodegen x 7.95 ops/sec ±1.87% (24 runs sampled)
astring x 158 ops/sec ±1.18% (79 runs sampled)
babel x 35.48 ops/sec ±1.20% (62 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] 221.78 KB 113.71 KB 32.74 KB
@babel/[email protected] 476.68 KB 282.87 KB 73.59 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] 65.3 KB 40.06 KB 5.83 KB
Computing the package sizes may need `NODE_OPTIONS=--openssl-legacy-provider` depending on the state of `crypto` in your JavaScript VM. I had to keep `meriyah` and `tree-sitter` sizes from the previous update, because `package-size` wasn't able to compile their modern code.
The `tree-sitter` parser uses native libraries, which have to considered too, when computing the package size:
❯ node perf/tree-sitter-size.js
tree-sitter: 395.30 KB
tree-sitter-javascript: 389.42 KB
## Exported Code Generator Size
❯ package-size escodegen astring
package size minified gzipped
[email protected] 279.28 KB 97.02 KB 25.68 KB
[email protected] 36.07 KB 15.57 KB 4.32 KB
Estimating the size of `@babel/generator` failed with webpack compilation errors.
## Contributing
In lieu of a formal styleguide, take care to maintain the existing coding style. Lint and test your code.
## License
Copyright (c) 2022-2024 Ferdinand Prantl
Licensed under the MIT license.