YJIT Benchmarks

Details for Benchmarks at 2025-03-22 03:48:10 UTC

YJIT metrics from the yjit-bench suite using Ruby 595040ba27.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 89.1% faster than CRuby 3.5.0dev
  • 7.5% faster than YJIT 3.3.6
On railsbench it is
  • 102.0% faster than CRuby 3.5.0dev
  • 6.7% 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 82 5 84 50 145 50 162
chunky-png 5 31 5 34 50 15 50 33
erubi-rails 5 16 5 15 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 421 5 432 50 565 50 642
liquid-compile 5 420 5 426 50 539 50 598
liquid-render 5 170 5 170 50 405 50 444
lobsters 5 19 5 19 50 10 50 10
mail 5 195 5 196 50 252 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 50 266
ruby-lsp 5 161 5 161 50 244 50 266
sequel 5 418 5 421 50 574 50 587
binarytrees 5 84 5 86 50 148 50 142
blurhash 5 82 5 86 50 127 50 145
erubi 5 125 5 148 50 88 50 151
etanni 5 90 5 101 50 54 50 73
fannkuchredux 5 52 5 58 50 99 50 107
fluentd 5 63 5 63 50 26 50 26
graphql 5 85 5 85 50 57 50 60
graphql-native 5 40 5 53 50 10 50 14
lee 5 22 5 23 50 10 50 10
matmul 5 51 5 54 50 85 50 97
nbody 5 248 5 283 50 577 50 654
nqueens 5 120 5 130 50 75 50 569
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 174 5 184 50 620 50 726
protoboeuf-encode 5 180 5 212 50 328 50 790
rack 5 573 5 630 50 949 50 1067
ruby-json 5 84 5 84 50 50 50 49
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 50 161
tinygql 5 36 5 37 50 23 50 30
30k_ifelse 5 28 5 28 50 215 50 206
30k_methods 5 38 5 38 50 479 50 473
cfunc_itself 5 346 5 368 50 1147 50 1258
fib 5 127 5 148 50 910 50 933
getivar 5 207 5 322 50 2240 50 2757
keyword_args 5 106 5 110 50 1042 50 1243
loops-times 5 24 5 27 50 48 50 65
object-new 5 322 5 326 50 405 50 380
respond_to 5 132 5 138 50 3258 50 3982
ruby-xor 5 241 5 262 50 803 50 1381
setivar 5 358 5 650 50 3186 50 5934
setivar_object 5 355 5 477 50 699 50 757
setivar_young 5 365 5 477 50 743 50 801
str_concat 5 401 5 457 50 969 50 1221
throw 5 1265 5 1313 50 1770 50 1766

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) 1426425 1240693 209 2202 0 0% 0 0 64.066695
chunky-png (click) 296895 272505 84 1124 1 0% 0 0 33.412514
erubi-rails (click) 1917734 1617387 260 2979 19 0% 0 0 87.492939
hexapdf (click) 1429652 1263839 595 13140 36 0% 0 0 378.958254
liquid-c (click) 476702 398034 114 1741 5 0% 0 0 49.045536
liquid-compile (click) 396853 359486 146 2084 2 0% 0 0 64.689919
liquid-render (click) 569038 475199 131 2307 8 0% 0 0 66.089014
lobsters (click) 8147657 6789810 3159 52839 104 0% 0 0 1830.771256
mail (click) 745407 642205 342 5317 14 0% 0 0 154.769689
psych-load (click) 243871 225079 61 617 3 0% 0 0 19.347502
railsbench (click) 3232759 2766479 1645 16185 52 0% 0 0 465.405236
rubocop (click) 5689237 4908297 2887 50522 110 0% 4 0 1502.615134
ruby-lsp (click) 811449 708448 305 4732 24 0% 0 0 135.237138
sequel (click) 454061 399690 11 92 0 0% 0 0 3.333575
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.25671
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.193913
erubi (click) 250324 212525 5 97 0 0% 0 0 3.227752
etanni (click) 27158 26329 8 88 0 0% 0 0 2.994696
fannkuchredux (click) 23031 13626 3 249 0 0% 0 0 7.330448
fluentd (click) 359122 319714 7 93 0 0% 0 0 3.271575
graphql (click) 392692 363673 66 676 0 0% 0 0 20.936491
graphql-native (click) 361245 303731 37 255 0 0% 0 0 8.571812
lee (click) 264258 200716 45 749 0 0% 0 0 23.637881
matmul (click) 10657 3512 8 109 0 0% 0 0 3.550368
nbody (click) 13050 17086 6 172 0 0% 0 0 4.394916
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.893397
optcarrot (click) 318856 234467 188 4395 34 0% 0 0 100.738355
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.786321
protoboeuf-encode (click) 221062 212146 14 1220 0 0% 0 0 31.325334
rack (click) 224078 200843 32 385 0 0% 0 0 10.214916
ruby-json (click) 19367 16755 8 178 0 0% 0 0 5.048294
rubyboy (click) 656936 649236 177 5803 40 0% 0 0 145.068489
rubykon (click) 133501 111856 137 1482 3 0% 0 0 42.747427
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.550984
tinygql (click) 270596 221493 58 762 5 0% 0 0 21.780732
30k_ifelse (click) 5658774 5284843 9259 51667 0 0% 0 0 1424.589487
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 454.434255
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.348846
fib (click) 2599 2861 3 26 0 0% 0 0 1.011285
getivar (click) 3501 4713 3 51 0 0% 0 0 1.360224
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.635008
loops-times (click) 6688 7405 5 70 0 0% 0 0 2.344176
object-new (click) 1918 2093 2 22 0 0% 0 0 0.855626
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.735233
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.922512
setivar (click) 2652 3389 3 31 0 0% 0 0 1.015614
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.129589
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.327211
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.002319
throw (click) 5848 4291 5 46 0 0% 0 0 1.625869

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.