perf: speed up swc_ecma_codegen JsWriter hot path
#11870Comparing
hardfist:codex/ecma-codegen-10pct-speedup
(5145cc0
) withmain
(dbceade
)+10%
- Improvement
- 19
- Untouched
- 200
- Ignored
- 1
- Skipped
- 31
No successful run was found on main ( 6cb4b08) during the generation of this report, so dbceade was used instead as the comparison base. There might be some changes unrelated to this pull request in this report.
Different runtime environments detected
Some benchmarks with significant performance changes were compared across different runtime environments, which may affect the accuracy of the results. Learn more about regression causes.Benchmarks
251 total
es/large/codegen/es2017
crates/swc/benches/typescript.rs::benches::codegen_group+18%
34.1 ms28.8 ms
es/large/codegen/es2020
crates/swc/benches/typescript.rs::benches::codegen_group+18%
34.1 ms28.9 ms
es/large/codegen/es2019
crates/swc/benches/typescript.rs::benches::codegen_group+18%
34.1 ms28.9 ms
es/large/codegen/es3
crates/swc/benches/typescript.rs::benches::codegen_group+18%
34.1 ms28.8 ms
es/large/codegen/es2018
crates/swc/benches/typescript.rs::benches::codegen_group+18%
34.1 ms28.9 ms
es/large/codegen/es5
crates/swc/benches/typescript.rs::benches::codegen_group+18%
34.1 ms28.9 ms
es/large/codegen/es2016
crates/swc/benches/typescript.rs::benches::codegen_group+18%
34.1 ms28.9 ms
es/large/codegen/es2015
crates/swc/benches/typescript.rs::benches::codegen_group+18%
34 ms28.9 ms
es/codegen/large
crates/swc_ecma_codegen/benches/bench.rs::benches::bench_cases+16%
645.1 µs555.6 µs
es/codegen/with-parser/large
crates/swc_ecma_codegen/benches/with_parse.rs::benches::bench_cases+9%
1,067.5 µs978 µs
es/codegen/colors
crates/swc_ecma_codegen/benches/bench.rs::benches::bench_cases+6%
72.2 µs68 µs
es/codegen/with-parser/colors
crates/swc_ecma_codegen/benches/with_parse.rs::benches::bench_cases+4%
150.5 µs145.4 µs
es/oxc/benches/assets/table.tsx/sourceMap=true/reactDev=true
crates/swc/benches/oxc.rs::benches::full_group+3%
8.2 ms7.9 ms
es/oxc/benches/assets/table.tsx/sourceMap=true/reactDev=false
crates/swc/benches/oxc.rs::benches::full_group+3%
7.4 ms7.2 ms
es/oxc/benches/assets/parser.ts/sourceMap=true/reactDev=true
crates/swc/benches/oxc.rs::benches::full_group+3%
83.7 ms81.5 ms
es/oxc/benches/assets/renderer.ts/sourceMap=true/reactDev=true
crates/swc/benches/oxc.rs::benches::full_group+3%
13.6 ms13.3 ms
es/oxc/benches/assets/renderer.ts/sourceMap=true/reactDev=false
crates/swc/benches/oxc.rs::benches::full_group+3%
13.6 ms13.3 ms
es/oxc/benches/assets/parser.ts/sourceMap=true/reactDev=false
crates/swc/benches/oxc.rs::benches::full_group+2%
83.6 ms81.6 ms
es/oxc/benches/assets/UserSettings.tsx/sourceMap=true/reactDev=false
crates/swc/benches/oxc.rs::benches::full_group+2%
1.2 ms1.2 ms
es/oxc/benches/assets/UserSettings.tsx/sourceMap=true/reactDev=true
crates/swc/benches/oxc.rs::benches::full_group+2%
1.3 ms1.3 ms
es/large/all/es2020
crates/swc/benches/typescript.rs::benches::full_group+2%
111.2 ms109.2 ms
es/large/minify/libraries/three
crates/swc/benches/minify.rs::benches::files_group::es/large/minify/libraries+2%
822.5 ms808.7 ms
es/large/minify/libraries/typescript
crates/swc/benches/minify.rs::benches::files_group::es/large/minify/libraries+1%
4.6 s4.5 s
es/large/minify/libraries/moment
crates/swc/benches/minify.rs::benches::files_group::es/large/minify/libraries+1%
80.9 ms79.7 ms
es/large/minify/libraries/vue
crates/swc/benches/minify.rs::benches::files_group::es/large/minify/libraries+1%
178.2 ms175.7 ms
Commits
Click on a commit to change the comparison rangeBase
main
dbceade
+10.18%
perf(ecma_codegen): streamline write hot path branching
5145cc0
21 hours ago
by hardfist