Benchmark for Oxc vs ESLint

This benchmark only compares with ESLint and does not compare against Biome because the rules do not match.

Summary

Oxlint is 50x - 100x faster than ESLint depending on the number of CPU cores.

Input

• uses the vscode/src directory, which contains 3684 files to lint
• See .eslintrc.json for ESLint configuration.
• @typescript-eslint is required for TypeScript

Results for eslint v8

Mac M2 8 cores

58 times faster than ESLint.

Benchmark 1: oxc
  Time (mean ± σ):     424.0 ms ±   2.2 ms    [User: 2243.9 ms, System: 373.6 ms]
  Range (min … max):   420.9 ms … 427.0 ms    10 runs

Benchmark 2: eslint
  Time (mean ± σ):     24.904 s ±  0.624 s    [User: 40.804 s, System: 1.691 s]
  Range (min … max):   24.292 s … 26.469 s    10 runs

Summary
  'oxc' ran
   58.73 ± 1.50 times faster than 'eslint'

Intel i7 6-cores

Benchmark 1: oxc
  Time (mean ± σ):     366.6 ms ±  16.8 ms    [User: 3116.9 ms, System: 507.3 ms]
  Range (min … max):   343.6 ms … 399.8 ms    10 runs

Benchmark 2: eslint
  Time (mean ± σ):     50.486 s ±  1.975 s    [User: 82.670 s, System: 3.590 s]
  Range (min … max):   47.101 s … 54.417 s    10 runs

Summary
  'oxc' ran
  137.70 ± 8.28 times faster than 'eslint'

AMD 5800H 8-cores

Benchmark 1: oxc
  Time (mean ± σ):     239.6 ms ±   2.3 ms    [User: 3113.7 ms, System: 153.3 ms]
  Range (min … max):   236.8 ms … 244.1 ms    10 runs

Benchmark 2: eslint
  Time (mean ± σ):      16.318 s ±  0.566 s   [User: 16.324 s, System: 0.723 s]
  Range (min … max):    15.624 s … 16.965 s   10 runs

Summary
  oxc ran
   68.09 ± 2.45 times faster than eslint

13th Gen Intel(R) i9-13980HX 24-cores (8p / 16e)

Benchmark 1: oxc
  Time (mean ± σ):      28.7 ms ±   3.0 ms    [User: 13.3 ms, System: 20.6 ms]
  Range (min … max):    23.1 ms …  44.3 ms    119 runs

Benchmark 2: eslint
  Time (mean ± σ):     374.9 ms ±   3.9 ms    [User: 416.3 ms, System: 67.2 ms]
  Range (min … max):   367.6 ms … 382.5 ms    10 runs

Summary
  'oxc' ran
   13.07 ± 1.38 times faster than 'eslint'

Intel core i5-4590

Benchmark 1: oxc
  Time (mean ± σ):      1.197 s ±  0.065 s    [User: 3.590 s, System: 0.273 s]
  Range (min … max):    1.147 s …  1.314 s    10 runs

  Warning: Ignoring non-zero exit code.

Benchmark 2: eslint
  Time (mean ± σ):     82.076 s ±  5.129 s    [User: 126.155 s, System: 3.591 s]
  Range (min … max):   77.457 s … 91.170 s    10 runs

Summary
  'oxc' ran
   71.68 ± 4.81 times faster than 'eslint'

Mac m1 10 Cores (8 performance and 2 efficiency)

Benchmark 1: oxc ./node_modules/.bin/oxlint ./tmp/vscode/src
  Time (mean ± σ):     584.6 ms ±  11.5 ms    [User: 3640.2 ms, System: 196.4 ms]
  Range (min … max):   573.8 ms … 612.2 ms    10 runs
 
  Warning: Ignoring non-zero exit code.
 
Benchmark 2: eslint ./node_modules/.bin/eslint -c .eslintrc.json ./tmp/vscode/src
  Time (mean ± σ):     33.316 s ±  0.478 s    [User: 50.109 s, System: 2.097 s]
  Range (min … max):   32.560 s … 34.375 s    10 runs
 
  Warning: Ignoring non-zero exit code.
 
Summary
  oxc ran
   56.99 ± 1.39 times faster than eslint

Results for eslint v9

Mac m1 10 Cores (8 performance and 2 efficiency)

Benchmark 1: oxc
  Time (mean ± σ):     615.3 ms ±  30.4 ms    [User: 3613.8 ms, System: 195.5 ms]
  Range (min … max):   583.7 ms … 677.1 ms    10 runs
 
  Warning: Ignoring non-zero exit code.
 
Benchmark 2: eslint
  Time (mean ± σ):     33.481 s ±  0.453 s    [User: 51.682 s, System: 2.329 s]
  Range (min … max):   32.861 s … 34.085 s    10 runs
 
  Warning: Ignoring non-zero exit code.
 
Summary
  oxc ran
   54.42 ± 2.78 times faster than eslint

Run

./init.sh
./bench.sh