YJIT Benchmarks

Details for Benchmarks at 2025-03-11 03:46:45 UTC

YJIT metrics from the yjit-bench suite using Ruby 47c3ae6962.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 86.9% faster than CRuby 3.5.0dev
  • 6.2% faster than YJIT 3.3.6
On railsbench it is
  • 93.8% faster than CRuby 3.5.0dev
  • 2.5% 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.

Want Raw Graphs and CSV?

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 50 158 50 166
chunky-png 5 32 5 35 50 15 50 34
erubi-rails 5 16 5 16 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 407 5 435 50 586 50 631
liquid-compile 5 410 5 415 50 543 50 564
liquid-render 5 171 5 176 50 404 50 441
lobsters 5 19 5 20 50 10 50 10
mail 5 196 5 197 50 251 50 251
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 156 5 158 50 251 50 267
ruby-lsp 5 157 5 164 50 250 50 263
sequel 5 433 5 424 50 601 50 581
binarytrees 5 84 5 86 50 149 50 141
blurhash 5 82 5 88 50 127 50 145
erubi 5 115 5 143 50 99 50 124
etanni 5 90 5 103 50 54 50 74
fannkuchredux 5 52 5 57 50 99 50 110
fluentd 5 63 5 66 50 25 50 44
graphql 5 84 5 88 50 57 50 60
graphql-native 5 49 5 52 50 10 50 14
lee 5 23 5 23 50 10 50 10
matmul 5 51 5 53 50 85 50 97
nbody 5 248 5 290 50 577 50 636
nqueens 5 120 5 130 50 75 50 563
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 174 5 188 50 620 50 730
protoboeuf-encode 5 179 5 208 50 328 50 822
rack 5 593 5 643 50 944 50 1059
ruby-json 5 84 5 84 50 50 50 52
rubyboy 5 10 5 10 50 10 50 10
rubykon 5 20 5 22 50 10 50 10
sudoku 5 48 5 51 50 164 50 162
tinygql 5 36 5 38 50 22 50 29
30k_ifelse 5 28 5 28 50 215 50 207
30k_methods 5 39 5 38 50 484 50 477
cfunc_itself 5 342 5 359 50 1147 50 1258
fib 5 119 5 145 50 910 50 933
getivar 5 207 5 304 50 2241 50 2736
keyword_args 5 107 5 109 50 1042 50 1243
loops-times 5 24 5 27 50 48 50 65
object-new 5 324 5 326 50 404 50 379
respond_to 5 133 5 138 50 3257 50 3980
ruby-xor 5 241 5 261 50 803 50 1382
setivar 5 358 5 639 50 3189 50 5925
setivar_object 5 355 5 481 50 697 50 815
setivar_young 5 365 5 480 50 746 50 814
str_concat 5 393 5 463 50 968 50 1214
throw 5 1264 5 1287 50 1775 50 1675

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) 1445785 1223410 209 2204 0 0% 0 0 65.102955
chunky-png (click) 301857 250303 84 1124 1 0% 0 0 33.564696
erubi-rails (click) 1919310 1682370 259 2982 19 0% 0 0 88.044402
hexapdf (click) 1468796 1245900 596 13147 42 0% 0 0 375.145787
liquid-c (click) 498108 431986 114 1743 5 0% 0 0 49.463675
liquid-compile (click) 402000 318966 146 2093 2 0% 0 0 66.040726
liquid-render (click) 610148 483616 131 2309 8 0% 0 0 66.091417
lobsters (click) 8123730 6793661 3159 52633 104 0% 0 0 1803.537295
mail (click) 760370 686504 342 5318 14 0% 0 0 155.96259
psych-load (click) 256128 232627 61 617 3 0% 0 0 19.52283
railsbench (click) 3238209 2743321 1645 16209 52 0% 0 0 468.404669
rubocop (click) 5666512 4917088 2887 50511 110 0% 4 0 1477.845247
ruby-lsp (click) 816993 746644 305 4730 24 0% 0 0 135.126072
sequel (click) 448682 416744 11 94 0 0% 0 0 3.437043
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.226926
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.258267
erubi (click) 252346 212530 5 97 0 0% 0 0 3.23713
etanni (click) 27173 26329 8 88 0 0% 0 0 2.996325
fannkuchredux (click) 23046 13626 3 249 0 0% 0 0 7.393489
fluentd (click) 388866 302151 7 93 0 0% 0 0 3.199628
graphql (click) 428921 375642 66 676 0 0% 0 0 21.200862
graphql-native (click) 378763 332809 37 255 0 0% 0 0 8.621832
lee (click) 274223 238591 45 750 0 0% 0 0 23.821181
matmul (click) 10657 3512 8 109 0 0% 0 0 3.587082
nbody (click) 13065 17086 6 172 0 0% 0 0 4.432393
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.927934
optcarrot (click) 319096 242804 188 4399 34 0% 0 0 102.015007
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.273751
protoboeuf-encode (click) 221107 212146 14 1220 0 0% 0 0 31.582583
rack (click) 264985 233526 32 385 0 0% 0 0 10.239642
ruby-json (click) 23441 20329 9 184 0 0% 0 0 5.335629
rubyboy (click) 685096 599409 177 5805 40 0% 0 0 146.576292
rubykon (click) 134065 128972 137 1489 3 0% 0 0 42.770931
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.574287
tinygql (click) 268123 242816 58 762 5 0% 0 0 21.977952
30k_ifelse (click) 5658804 5284852 9259 51668 0 0% 0 0 1424.834417
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 457.860895
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.352091
fib (click) 2599 2861 3 26 0 0% 0 0 0.984706
getivar (click) 3501 4713 3 51 0 0% 0 0 1.339342
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.617484
loops-times (click) 6703 7405 5 71 0 0% 0 0 2.307369
object-new (click) 1933 2093 2 22 0 0% 0 0 0.830147
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.720862
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.925256
setivar (click) 2652 3389 3 31 0 0% 0 0 1.011955
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.102721
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.331913
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.045033
throw (click) 5848 4291 5 46 0 0% 0 0 1.621355

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.