YJIT Benchmarks

Details for Benchmarks at 2025-03-24 03:48:15 UTC

YJIT metrics from the yjit-bench suite using Ruby 08d81ac627.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 90.3% faster than CRuby 3.5.0dev
  • 6.5% faster than YJIT 3.3.6
On railsbench it is
  • 96.6% faster than CRuby 3.5.0dev
  • 3.7% faster than YJIT 3.3.6
x86_64 runtime: 4 hours, 19 minutes
aarch64 runtime: 3 hours, 43 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 50 156 50 162
chunky-png 5 31 5 34 50 16 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 5 433 50 590 50 650
liquid-compile 5 410 5 415 50 572 50 565
liquid-render 5 169 5 173 50 406 50 446
lobsters 5 19 5 19 50 10 50 10
mail 5 189 5 195 50 251 50 249
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 157 5 158 50 250 50 264
ruby-lsp 5 155 5 144 50 232 50 276
sequel 5 421 5 431 50 598 50 596
binarytrees 5 84 5 85 50 149 50 142
blurhash 5 82 5 86 50 127 50 145
erubi 5 117 5 139 50 91 50 140
etanni 5 90 5 101 50 54 50 72
fannkuchredux 5 52 5 58 50 99 50 104
fluentd 5 64 5 63 50 24 50 28
graphql 5 85 5 85 50 56 50 59
graphql-native 5 40 5 52 50 10 50 14
lee 5 22 5 23 50 10 50 10
matmul 5 50 5 54 50 85 50 96
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 5 211 50 327 50 825
rack 5 580 5 624 50 941 50 1048
ruby-json 5 84 5 84 50 50 50 50
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 35 5 38 50 23 50 29
30k_ifelse 5 28 5 28 50 214 50 206
30k_methods 5 39 5 38 50 482 50 475
cfunc_itself 5 344 5 364 50 1147 50 1258
fib 5 127 5 148 50 910 50 933
getivar 5 207 5 321 50 2239 50 2767
keyword_args 5 107 5 109 50 1042 50 1243
loops-times 5 24 5 28 50 48 50 64
object-new 5 323 5 326 50 405 50 382
respond_to 5 133 5 138 50 3259 50 3980
ruby-xor 5 223 5 264 50 803 50 1389
setivar 5 358 5 644 50 3185 50 5930
setivar_object 5 354 5 480 50 697 50 756
setivar_young 5 364 5 480 50 745 50 804
str_concat 5 400 5 464 50 969 50 1220
throw 5 1264 5 1310 50 1782 50 1795

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) 1422004 1244814 209 2202 0 0% 0 0 63.783925
chunky-png (click) 323795 294685 84 1124 1 0% 0 0 33.148499
erubi-rails (click) 1925228 1573504 260 2954 19 0% 0 0 87.001525
hexapdf (click) 1439744 1205049 595 13139 41 0% 0 0 378.770237
liquid-c (click) 475377 388786 114 1738 5 0% 0 0 48.555288
liquid-compile (click) 406024 349638 146 2084 2 0% 0 0 64.303405
liquid-render (click) 607707 515698 131 2307 8 0% 0 0 64.885376
lobsters (click) 8114489 6777396 3159 52593 104 0% 0 0 1801.791184
mail (click) 761515 639574 342 5317 14 0% 0 0 154.63928
psych-load (click) 246820 226536 61 617 3 0% 0 0 19.401542
railsbench (click) 3238272 2746077 1645 16257 52 0% 0 0 502.979056
rubocop (click) 5664425 4893798 2887 50504 110 0% 4 0 1482.103388
ruby-lsp (click) 822090 738953 305 4727 24 0% 0 0 133.649739
sequel (click) 453685 381674 11 94 0 0% 0 0 3.489352
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.260695
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.248121
erubi (click) 222594 187187 5 97 0 0% 0 0 3.18952
etanni (click) 27158 26329 8 88 0 0% 0 0 2.994683
fannkuchredux (click) 23031 13626 3 249 0 0% 0 0 7.359941
fluentd (click) 361935 322444 7 93 0 0% 0 0 3.262096
graphql (click) 426632 342458 66 676 0 0% 0 0 21.015698
graphql-native (click) 368749 332943 37 255 0 0% 0 0 8.696676
lee (click) 270229 211690 45 749 0 0% 0 0 23.660977
matmul (click) 10657 3512 8 109 0 0% 0 0 3.540726
nbody (click) 13050 17086 6 172 0 0% 0 0 4.450516
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.925801
optcarrot (click) 318856 234467 188 4395 34 0% 0 0 104.247131
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.214772
protoboeuf-encode (click) 221062 212146 14 1220 0 0% 0 0 31.658416
rack (click) 232602 189444 32 385 0 0% 0 0 9.92597
ruby-json (click) 23776 20702 8 181 0 0% 0 0 5.230397
rubyboy (click) 661932 589380 177 5803 40 0% 0 0 144.789356
rubykon (click) 133501 111856 137 1482 3 0% 0 0 42.947948
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.458488
tinygql (click) 270550 221464 58 762 5 0% 0 0 21.921158
30k_ifelse (click) 5658774 5284843 9259 51667 0 0% 0 0 1428.885595
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 456.778743
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.35527
fib (click) 2599 2861 3 26 0 0% 0 0 0.960492
getivar (click) 3501 4713 3 51 0 0% 0 0 1.358496
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.615388
loops-times (click) 6688 7405 5 70 0 0% 0 0 2.271477
object-new (click) 1918 2093 2 22 0 0% 0 0 0.860565
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.725585
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.928987
setivar (click) 2652 3389 3 31 0 0% 0 0 1.040221
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.120574
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.289436
str_concat (click) 5469 6016 6 62 0 0% 0 0 1.997554
throw (click) 5848 4291 5 46 0 0% 0 0 1.606792

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.