YJIT Benchmarks

Details for Benchmarks at 2025-03-25 03:47:44 UTC

YJIT metrics from the yjit-bench suite using Ruby 1427629a5f.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 85.8% faster than CRuby 3.5.0dev
  • 4.8% faster than YJIT 3.3.6
On railsbench it is
  • 101.1% faster than CRuby 3.5.0dev
  • 5.7% 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 84 50 156 50 162
chunky-png 5 32 5 34 50 15 50 33
erubi-rails 5 15 5 16 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 420 5 431 50 588 50 651
liquid-compile 5 408 5 414 50 541 50 564
liquid-render 5 173 5 171 50 405 50 432
lobsters 5 19 5 19 50 10 50 10
mail 5 195 5 196 50 251 50 250
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 156 5 156 50 251 50 262
ruby-lsp 5 156 5 164 50 246 50 206
sequel 5 434 5 426 50 572 50 573
binarytrees 5 84 5 86 50 149 50 142
blurhash 5 82 5 86 50 127 50 145
erubi 5 75 5 145 50 98 50 139
etanni 5 90 5 100 50 54 50 72
fannkuchredux 5 52 5 58 50 99 50 104
fluentd 5 64 5 64 50 25 50 29
graphql 5 85 5 88 50 56 50 57
graphql-native 5 40 5 52 50 10 50 15
lee 5 22 5 23 50 10 50 10
matmul 5 51 5 54 50 85 50 97
nbody 5 248 5 283 50 578 50 706
nqueens 5 120 5 130 50 75 50 566
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 175 5 184 50 620 50 733
protoboeuf-encode 5 180 5 213 50 328 50 794
rack 5 587 5 620 50 945 50 1050
ruby-json 5 84 5 84 50 50 50 51
rubyboy 5 10 5 10 50 10 50 10
rubykon 5 21 5 22 50 10 50 10
sudoku 5 48 5 51 50 164 50 159
tinygql 5 36 5 38 50 22 50 29
30k_ifelse 5 27 5 28 50 214 50 206
30k_methods 5 39 5 38 50 479 50 474
cfunc_itself 5 345 5 363 50 1147 50 1258
fib 5 125 5 147 50 910 50 933
getivar 5 207 5 322 50 2238 50 2760
keyword_args 5 107 5 109 50 1042 50 1243
loops-times 5 24 5 28 50 48 50 65
object-new 5 322 5 326 50 405 50 381
respond_to 5 132 5 139 50 3259 50 3980
ruby-xor 5 240 5 264 50 803 50 1389
setivar 5 358 5 646 50 3190 50 5930
setivar_object 5 355 5 480 50 700 50 762
setivar_young 5 365 5 480 50 743 50 804
str_concat 5 397 5 466 50 969 50 1219
throw 5 1265 5 1313 50 1787 50 1798

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) 1416714 1224677 209 2202 0 0% 0 0 64.730344
chunky-png (click) 302261 259516 84 1124 1 0% 0 0 33.789164
erubi-rails (click) 1901003 1626981 259 2945 19 0% 0 0 80.6908
hexapdf (click) 1444247 1217918 595 13139 41 0% 0 0 380.345689
liquid-c (click) 483573 420200 114 1741 5 0% 0 0 48.738026
liquid-compile (click) 409520 335825 146 2083 2 0% 0 0 64.120138
liquid-render (click) 605929 572191 131 2307 8 0% 0 0 65.529366
lobsters (click) 8138727 6757876 3159 52721 104 0% 0 0 1829.103627
mail (click) 735258 649552 342 5317 14 0% 0 0 154.912635
psych-load (click) 254801 232955 61 617 3 0% 0 0 19.390742
railsbench (click) 3252606 2799674 1645 16185 52 0% 0 0 465.093242
rubocop (click) 5691812 4902007 2887 50512 110 0% 4 0 1484.419999
ruby-lsp (click) 844971 789820 305 4730 24 0% 0 0 134.523597
sequel (click) 476876 426500 11 94 0 0% 0 0 3.354175
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.280747
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.239821
erubi (click) 252493 222670 5 97 0 0% 0 0 3.263714
etanni (click) 27158 26329 8 88 0 0% 0 0 2.980815
fannkuchredux (click) 23031 13626 3 249 0 0% 0 0 7.372809
fluentd (click) 387026 309992 7 93 0 0% 0 0 3.212463
graphql (click) 403241 362936 66 676 0 0% 0 0 21.208604
graphql-native (click) 364899 303763 37 255 0 0% 0 0 8.784725
lee (click) 300123 255333 45 749 0 0% 0 0 23.512121
matmul (click) 10657 3512 8 109 0 0% 0 0 3.536996
nbody (click) 13050 17086 6 172 0 0% 0 0 4.443724
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.857349
optcarrot (click) 318856 234467 188 4395 34 0% 0 0 102.930886
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.479463
protoboeuf-encode (click) 221062 212146 14 1220 0 0% 0 0 31.444808
rack (click) 234575 199253 32 385 0 0% 0 0 10.179706
ruby-json (click) 23859 20840 8 178 0 0% 0 0 5.039898
rubyboy (click) 658200 626285 177 5807 40 0% 0 0 145.378609
rubykon (click) 133501 111856 137 1482 3 0% 0 0 42.58597
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.485944
tinygql (click) 265449 225651 58 762 5 0% 0 0 22.118187
30k_ifelse (click) 5658774 5284843 9259 51667 0 0% 0 0 1416.325087
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 453.675408
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.338272
fib (click) 2599 2861 3 26 0 0% 0 0 1.043921
getivar (click) 3501 4713 3 51 0 0% 0 0 1.352742
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.606674
loops-times (click) 6688 7405 5 70 0 0% 0 0 2.32366
object-new (click) 1918 2093 2 22 0 0% 0 0 0.854906
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.729569
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.906711
setivar (click) 2652 3389 3 31 0 0% 0 0 1.004205
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.13395
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.360633
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.064875
throw (click) 5848 4291 5 46 0 0% 0 0 1.634513

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.