YJIT Benchmarks

Details for Benchmarks at 2025-04-02 03:49:05 UTC

YJIT metrics from the yjit-bench suite using Ruby 938db05361.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 89.5% faster than CRuby 3.5.0dev
  • 6.2% faster than YJIT 3.3.6
On railsbench it is
  • 103.2% faster than CRuby 3.5.0dev
  • 6.6% faster than YJIT 3.3.6
x86_64 runtime: 4 hours, 19 minutes
aarch64 runtime: 3 hours, 40 minutes

Performance on Headline Benchmarks

Speed of each Ruby implementation relative to the baseline CRuby measurement. Higher is better.

Memory Usage on Headline Benchmarks

Memory usage of each Ruby implementation relative to the baseline CRuby measurement. Lower is better.

Performance on Other Benchmarks

Speed of each Ruby implementation relative to the baseline CRuby measurement. Higher is better.

Memory Usage on Other Benchmarks

Memory usage of each Ruby implementation relative to the baseline CRuby measurement. Lower is better.

Performance on MicroBenchmarks

Speed of each Ruby implementation relative to the baseline CRuby measurement. Higher is better.

Memory Usage on MicroBenchmarks

Memory usage of each Ruby implementation relative to the baseline CRuby measurement. Lower is better.

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Benchmarks Speed Details

Benchmark Memory Usage Details

Number of Iterations and Warmups Tested

bench CRuby 3.3.6 warmups CRuby 3.3.6 iters CRuby 3.5.0dev warmups CRuby 3.5.0dev iters YJIT 3.3.6 warmups YJIT 3.3.6 iters YJIT 3.5.0dev warmups YJIT 3.5.0dev iters
activerecord 5 83 5 85 50 157 50 164
chunky-png 5 32 5 34 50 16 50 33
erubi-rails 5 16 5 16 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 419 5 430 50 590 50 656
liquid-compile 5 410 5 411 50 555 50 594
liquid-render 5 171 5 172 50 402 50 434
lobsters 5 19 5 19 50 10 50 10
mail 5 195 5 197 50 241 50 250
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 157 5 158 50 251 50 267
ruby-lsp 5 156 5 159 50 258 50 261
sequel 5 422 5 417 50 590 50 578
binarytrees 5 84 5 85 50 149 50 143
blurhash 5 82 5 88 50 127 50 145
erubi 5 124 5 142 50 97 50 123
etanni 5 91 5 101 50 54 50 72
fannkuchredux 5 52 5 58 50 99 50 106
fluentd 5 63 5 64 50 25 50 30
graphql 5 85 5 85 50 57 50 60
graphql-native 5 49 5 52 50 10 50 14
lee 5 22 5 23 50 10 50 10
matmul 5 51 5 54 50 85 50 95
nbody 5 248 5 281 50 578 50 636
nqueens 5 120 5 131 50 75 50 564
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 175 5 186 50 620 50 738
protoboeuf-encode 5 177 5 194 50 327 50 806
rack 5 593 5 620 50 954 50 1043
ruby-json 5 83 5 84 50 50 50 50
rubyboy 5 10 5 10 50 10 50 10
rubykon 5 20 5 22 50 10 50 10
sudoku 5 48 5 51 50 164 50 160
tinygql 5 35 5 38 50 22 50 27
30k_ifelse 5 28 5 28 50 215 50 206
30k_methods 5 38 5 38 50 483 50 476
cfunc_itself 5 346 5 369 50 1147 50 1258
fib 5 126 5 151 50 910 50 933
getivar 5 207 5 297 50 2242 50 2770
keyword_args 5 107 5 109 50 1042 50 1243
loops-times 5 24 5 27 50 48 50 65
object-new 5 323 5 326 50 404 50 384
respond_to 5 134 5 142 50 3256 50 3973
ruby-xor 5 240 5 262 50 803 50 1379
setivar 5 358 5 540 50 3183 50 5873
setivar_object 5 355 5 466 50 701 50 797
setivar_young 5 365 5 464 50 741 50 804
str_concat 5 398 5 456 50 970 50 1220
throw 5 1264 5 1260 50 1774 50 1755

Different Ruby configurations want different amounts of warmup. With no JIT, CRuby needs hardly any. YJIT and MJIT 3.0 both warm up quite quickly, while MJIT in 3.1 often slows down for a time as it compiles, after an unpredictable delay.

Benchmark YJIT Stats

Hover your cursor over the benchmark names for descriptions of each benchmark.

bench Exit Report Inline Outlined Comp iSeqs Comp Blocks Inval Inval Ratio Bind Alloc Bind Set Const Bumps Compile Time MS
activerecord (click) 1428334 1168781 209 2202 0 0% 0 0 68.308277
chunky-png (click) 299182 239921 84 1124 1 0% 0 0 33.195035
erubi-rails (click) 1901851 1626978 259 2951 19 0% 0 0 87.43729
hexapdf (click) 1435408 1160112 595 13140 40 0% 0 0 379.227006
liquid-c (click) 470207 385410 115 1744 5 0% 0 0 48.336314
liquid-compile (click) 397485 340499 146 2077 2 0% 0 0 63.72443
liquid-render (click) 575520 486647 132 2310 8 0% 0 0 65.770013
lobsters (click) 8128730 6753767 3161 52718 104 0% 0 0 1840.82211
mail (click) 736173 585452 342 5317 14 0% 0 0 155.743366
psych-load (click) 250903 237209 61 617 3 0% 0 0 19.387013
railsbench (click) 3232288 2683946 1645 16219 52 0% 0 0 477.001876
rubocop (click) 5667152 4830314 2887 50525 110 0% 4 0 1472.321472
ruby-lsp (click) 842500 714330 305 4727 24 0% 0 0 134.058958
sequel (click) 456310 399630 11 94 0 0% 0 0 3.28029
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.256711
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.150923
erubi (click) 255420 217154 5 97 0 0% 0 0 3.223749
etanni (click) 30101 29597 8 88 0 0% 0 0 3.001078
fannkuchredux (click) 23031 13626 3 249 0 0% 0 0 7.366463
fluentd (click) 371687 331538 7 93 0 0% 0 0 3.220067
graphql (click) 413237 380780 66 676 0 0% 0 0 20.902265
graphql-native (click) 389715 351642 37 255 0 0% 0 0 8.793658
lee (click) 279291 220392 45 749 0 0% 0 0 23.422121
matmul (click) 10657 3512 8 109 0 0% 0 0 3.581063
nbody (click) 13050 17086 6 172 0 0% 0 0 4.410777
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.877124
optcarrot (click) 318856 234467 188 4395 34 0% 0 0 101.511263
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.137281
protoboeuf-encode (click) 221062 212146 14 1220 0 0% 0 0 31.358285
rack (click) 232495 205735 32 385 0 0% 0 0 10.046842
ruby-json (click) 23776 20731 8 178 0 0% 0 0 5.082226
rubyboy (click) 663105 597889 177 5803 40 0% 0 0 143.678394
rubykon (click) 133501 111856 137 1482 3 0% 0 0 42.677625
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.603723
tinygql (click) 293141 250590 58 762 5 0% 0 0 21.879278
30k_ifelse (click) 5658774 5284843 9259 51667 0 0% 0 0 1418.52289
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 452.764784
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.319774
fib (click) 2599 2861 3 26 0 0% 0 0 1.014432
getivar (click) 3501 4713 3 51 0 0% 0 0 1.378117
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.620793
loops-times (click) 6688 7405 5 70 0 0% 0 0 2.342008
object-new (click) 1918 2093 2 22 0 0% 0 0 0.870929
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.764657
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.8793
setivar (click) 2652 3389 3 31 0 0% 0 0 1.031587
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.140291
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.345016
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.016641
throw (click) 5848 4291 5 46 0 0% 0 0 1.622016

YJIT stats correspond to the YJIT stats exit report.

Note: currently, all stats are collected on x86_64, not ARM.

Raw JSON data files

All graphs and table data in this page comes from processing these data files, which come from benchmark runs.