YJIT Benchmarks

Details for Benchmarks at 2025-03-05 03:46:27 UTC

YJIT metrics from the yjit-bench suite using Ruby 1ce10f3fbb.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 86.6% faster than CRuby 3.5.0dev
  • 4.4% faster than YJIT 3.3.6
On railsbench it is
  • 93.5% faster than CRuby 3.5.0dev
  • 3.3% 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 85 50 157 50 163
chunky-png 5 31 5 34 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 5 421 5 422 50 564 50 622
liquid-compile 5 407 5 432 50 544 50 594
liquid-render 5 171 5 174 50 403 50 428
lobsters 5 20 5 19 50 10 50 10
mail 5 195 5 198 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 5 158 50 252 50 269
ruby-lsp 5 156 5 144 50 258 50 205
sequel 5 434 5 423 50 602 50 586
binarytrees 5 84 5 86 50 149 50 141
blurhash 5 82 5 87 50 127 50 144
erubi 5 120 5 144 50 98 50 142
etanni 5 90 5 100 50 54 50 71
fannkuchredux 5 52 5 57 50 99 50 110
fluentd 5 64 5 60 50 25 50 25
graphql 5 85 5 86 50 57 50 59
graphql-native 5 40 5 51 50 10 50 14
lee 5 22 5 23 50 10 50 10
matmul 5 51 5 54 50 85 50 96
nbody 5 248 5 287 50 578 50 706
nqueens 5 120 5 129 50 75 50 563
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 174 5 184 50 620 50 723
protoboeuf-encode 5 180 5 180 50 329 50 836
rack 5 585 5 641 50 950 50 1062
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 50 50 164 50 162
tinygql 5 36 5 38 50 23 50 29
30k_ifelse 5 28 5 28 50 214 50 206
30k_methods 5 39 5 38 50 484 50 477
cfunc_itself 5 346 5 357 50 1147 50 1258
fib 5 127 5 127 50 910 50 933
getivar 5 207 5 322 50 2244 50 2769
keyword_args 5 106 5 109 50 1042 50 1243
loops-times 5 24 5 27 50 48 50 65
object-new 5 322 5 327 50 403 50 389
respond_to 5 133 5 138 50 3258 50 3983
ruby-xor 5 220 5 238 50 803 50 1390
setivar 5 358 5 639 50 3192 50 5927
setivar_object 5 355 5 478 50 700 50 817
setivar_young 5 364 5 478 50 744 50 815
str_concat 5 401 5 486 50 970 50 1225
throw 5 1264 5 1283 50 1776 50 1734

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) 1422070 1186142 209 2204 0 0% 0 0 64.377648
chunky-png (click) 323339 293169 84 1124 1 0% 0 0 33.092713
erubi-rails (click) 1907483 1620977 260 2965 19 0% 0 0 81.41112
hexapdf (click) 1468949 1204648 595 13140 41 0% 0 0 373.00242
liquid-c (click) 503355 427838 114 1743 5 0% 0 0 48.706335
liquid-compile (click) 401046 326137 146 2082 2 0% 0 0 64.752384
liquid-render (click) 607443 489832 131 2309 8 0% 0 0 64.968537
lobsters (click) 8125320 6707889 3158 52620 104 0% 0 0 1811.853175
mail (click) 727967 576513 342 5318 14 0% 0 0 154.761066
psych-load (click) 247018 240645 61 617 3 0% 0 0 19.075147
railsbench (click) 3238545 2758604 1645 16197 52 0% 0 0 464.919999
rubocop (click) 5656452 4909776 2887 50555 110 0% 4 0 1488.961732
ruby-lsp (click) 808746 688077 305 4735 24 0% 0 0 134.02426
sequel (click) 479596 427363 11 94 0 0% 0 0 3.354687
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.25882
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.142677
erubi (click) 216328 173051 5 97 0 0% 0 0 3.186412
etanni (click) 27173 26329 8 88 0 0% 0 0 2.987953
fannkuchredux (click) 23046 13626 3 249 0 0% 0 0 7.309213
fluentd (click) 391970 321006 7 93 0 0% 0 0 3.277952
graphql (click) 426216 398207 66 676 0 0% 0 0 20.783152
graphql-native (click) 391410 368297 37 255 0 0% 0 0 8.763371
lee (click) 274237 231111 45 750 0 0% 0 0 23.266308
matmul (click) 10657 3512 8 109 0 0% 0 0 3.524764
nbody (click) 13065 17086 6 172 0 0% 0 0 4.407925
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.842621
optcarrot (click) 319096 242804 188 4399 34 0% 0 0 102.479297
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 41.69008
protoboeuf-encode (click) 221107 212146 14 1220 0 0% 0 0 31.14439
rack (click) 263123 248768 32 385 0 0% 0 0 10.099517
ruby-json (click) 23859 20840 8 178 0 0% 0 0 5.042047
rubyboy (click) 688418 626500 177 5809 40 0% 0 0 143.373991
rubykon (click) 134065 128972 137 1489 3 0% 0 0 42.646616
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.423379
tinygql (click) 268880 235279 58 762 5 0% 0 0 21.669024
30k_ifelse (click) 5658804 5284852 9259 51668 0 0% 0 0 1415.558713
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 450.259876
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.342225
fib (click) 2599 2861 3 26 0 0% 0 0 0.983145
getivar (click) 3501 4713 3 51 0 0% 0 0 1.298731
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.614406
loops-times (click) 6703 7405 5 71 0 0% 0 0 2.310535
object-new (click) 1933 2093 2 22 0 0% 0 0 0.836387
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.718415
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.908545
setivar (click) 2652 3389 3 31 0 0% 0 0 0.985777
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.122446
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.326531
str_concat (click) 5469 6016 6 62 0 0% 0 0 1.989264
throw (click) 5848 4291 5 46 0 0% 0 0 1.61204

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.