YJIT Benchmarks

Details for Benchmarks at 2025-03-16 03:47:34 UTC

YJIT metrics from the yjit-bench suite using Ruby 06919949a6.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 88.2% faster than CRuby 3.5.0dev
  • 6.3% faster than YJIT 3.3.6
On railsbench it is
  • 94.6% faster than CRuby 3.5.0dev
  • 4.1% 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 84 5 85 50 157 50 166
chunky-png 5 32 5 35 50 15 50 34
erubi-rails 5 15 5 16 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 420 5 436 50 596 50 643
liquid-compile 5 409 5 431 50 575 50 597
liquid-render 5 168 5 177 50 404 50 444
lobsters 5 19 5 20 50 10 50 10
mail 5 196 5 198 50 239 50 258
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 50 268
ruby-lsp 5 162 5 159 50 261 50 259
sequel 5 434 5 412 50 602 50 581
binarytrees 5 84 5 86 50 149 50 142
blurhash 5 82 5 87 50 127 50 145
erubi 5 124 5 149 50 99 50 45
etanni 5 91 5 101 50 54 50 73
fannkuchredux 5 52 5 54 50 99 50 100
fluentd 5 63 5 65 50 26 50 32
graphql 5 85 5 85 50 57 50 59
graphql-native 5 49 5 52 50 10 50 14
lee 5 23 5 23 50 10 50 10
matmul 5 51 5 51 50 85 50 97
nbody 5 248 5 276 50 577 50 680
nqueens 5 120 5 128 50 75 50 555
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 175 5 189 50 620 50 732
protoboeuf-encode 5 180 5 207 50 327 50 812
rack 5 578 5 638 50 944 50 1054
ruby-json 5 83 5 85 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 50 50 164 50 161
tinygql 5 36 5 38 50 23 50 29
30k_ifelse 5 28 5 28 50 216 50 207
30k_methods 5 39 5 38 50 478 50 470
cfunc_itself 5 345 5 355 50 1147 50 1258
fib 5 127 5 146 50 909 50 933
getivar 5 207 5 299 50 2243 50 2740
keyword_args 5 107 5 106 50 1042 50 1243
loops-times 5 24 5 28 50 48 50 65
object-new 5 323 5 327 50 405 50 379
respond_to 5 133 5 137 50 3258 50 3982
ruby-xor 5 240 5 260 50 803 50 1382
setivar 5 358 5 643 50 3191 50 5929
setivar_object 5 355 5 470 50 695 50 745
setivar_young 5 365 5 469 50 744 50 804
str_concat 5 398 5 435 50 969 50 1213
throw 5 1265 5 1296 50 1774 50 1728

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) 1454106 1230366 209 2204 0 0% 0 0 64.66095
chunky-png (click) 322189 251387 84 1124 1 0% 0 0 33.37287
erubi-rails (click) 1919686 1608183 259 2981 19 0% 0 0 88.203681
hexapdf (click) 1464889 1243076 595 13142 42 0% 0 0 376.053339
liquid-c (click) 503781 412237 114 1743 5 0% 0 0 48.957318
liquid-compile (click) 431322 337539 146 2094 2 0% 0 0 67.090322
liquid-render (click) 601878 484983 131 2309 8 0% 0 0 65.808422
lobsters (click) 8135356 6874534 3160 52776 104 0% 0 0 1832.009194
mail (click) 760673 629783 342 5318 14 0% 0 0 155.253166
psych-load (click) 276500 234316 61 615 3 0% 0 0 19.151576
railsbench (click) 3243976 2697959 1645 16193 52 0% 0 0 470.499635
rubocop (click) 5660980 4857105 2887 50555 110 0% 4 0 1494.151534
ruby-lsp (click) 811361 739905 305 4735 24 0% 0 0 135.738417
sequel (click) 484003 424326 11 94 0 0% 0 0 3.641563
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.286748
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.272638
erubi (click) 252772 237841 5 97 0 0% 0 0 3.237172
etanni (click) 27173 26329 8 88 0 0% 0 0 2.997684
fannkuchredux (click) 23046 13626 3 249 0 0% 0 0 7.356874
fluentd (click) 357434 308286 7 93 0 0% 0 0 3.346865
graphql (click) 424890 388606 66 676 0 0% 0 0 21.047599
graphql-native (click) 394378 353682 37 255 0 0% 0 0 8.642021
lee (click) 299310 253400 45 750 0 0% 0 0 23.475498
matmul (click) 10657 3512 8 109 0 0% 0 0 3.540545
nbody (click) 13065 17086 6 172 0 0% 0 0 4.440339
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.913066
optcarrot (click) 319096 242804 188 4399 34 0% 0 0 101.76489
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.561432
protoboeuf-encode (click) 221107 212146 14 1220 0 0% 0 0 31.530446
rack (click) 261571 214758 32 385 0 0% 0 0 10.195593
ruby-json (click) 23859 20840 8 178 0 0% 0 0 5.045999
rubyboy (click) 676880 568260 177 5803 40 0% 0 0 146.09661
rubykon (click) 134065 128972 137 1489 3 0% 0 0 42.712034
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.498377
tinygql (click) 295159 267608 58 762 5 0% 0 0 21.261839
30k_ifelse (click) 5658804 5284852 9259 51668 0 0% 0 0 1420.801025
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 454.983473
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.331282
fib (click) 2599 2861 3 26 0 0% 0 0 0.978048
getivar (click) 3501 4713 3 51 0 0% 0 0 1.323919
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.601148
loops-times (click) 6703 7405 5 71 0 0% 0 0 2.299386
object-new (click) 1933 2093 2 22 0 0% 0 0 0.846755
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.714153
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.914597
setivar (click) 2652 3389 3 31 0 0% 0 0 1.012918
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.10481
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.2921
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.03939
throw (click) 5848 4291 5 46 0 0% 0 0 1.621947

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.