YJIT Benchmarks

Details for Benchmarks at 2025-03-03 03:46:29 UTC

YJIT metrics from the yjit-bench suite using Ruby a47e686cb6.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 88.1% faster than CRuby 3.5.0dev
  • 6.9% faster than YJIT 3.3.6
On railsbench it is
  • 100.9% faster than CRuby 3.5.0dev
  • 9.3% 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 83 50 157 50 165
chunky-png 5 31 5 34 50 15 50 33
erubi-rails 5 16 5 16 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 407 5 428 50 589 50 619
liquid-compile 5 427 5 432 50 548 50 563
liquid-render 5 171 5 172 50 407 50 431
lobsters 5 20 5 20 50 10 50 10
mail 5 195 5 198 50 236 50 257
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 156 5 159 50 249 50 269
ruby-lsp 5 161 5 162 50 241 50 259
sequel 5 419 5 413 50 602 50 593
binarytrees 5 84 5 85 50 149 50 140
blurhash 5 82 5 87 50 127 50 144
erubi 5 116 5 149 50 98 50 150
etanni 5 90 5 100 50 54 50 70
fannkuchredux 5 52 5 58 50 99 50 109
fluentd 5 64 5 63 50 26 50 44
graphql 5 84 5 86 50 57 50 59
graphql-native 5 49 5 53 50 11 50 15
lee 5 22 5 23 50 10 50 10
matmul 5 51 5 53 50 85 50 96
nbody 5 248 5 288 50 578 50 706
nqueens 5 120 5 129 50 75 50 563
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 175 5 185 50 620 50 726
protoboeuf-encode 5 179 5 206 50 328 50 835
rack 5 565 5 648 50 947 50 1062
ruby-json 5 84 5 86 50 50 50 50
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 50 161
tinygql 5 36 5 38 50 23 50 30
30k_ifelse 5 28 5 28 50 215 50 207
30k_methods 5 39 5 39 50 480 50 478
cfunc_itself 5 346 5 356 50 1147 50 1258
fib 5 119 5 151 50 910 50 933
getivar 5 207 5 319 50 2240 50 2756
keyword_args 5 107 5 109 50 1042 50 1243
loops-times 5 24 5 27 50 48 50 65
object-new 5 323 5 327 50 405 50 389
respond_to 5 134 5 141 50 3258 50 3983
ruby-xor 5 240 5 238 50 803 50 1389
setivar 5 359 5 637 50 3190 50 5929
setivar_object 5 354 5 477 50 701 50 817
setivar_young 5 365 5 477 50 744 50 813
str_concat 5 401 5 485 50 968 50 1225
throw 5 1264 5 1280 50 1776 50 1729

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) 1430748 1168908 209 2204 0 0% 0 0 63.034954
chunky-png (click) 321627 283386 84 1124 1 0% 0 0 33.25421
erubi-rails (click) 1922717 1617638 260 2980 19 0% 0 0 81.834455
hexapdf (click) 1465169 1235004 595 13144 42 0% 0 0 373.469426
liquid-c (click) 481972 417025 114 1743 5 0% 0 0 48.366434
liquid-compile (click) 391522 303870 146 2077 2 0% 0 0 63.931429
liquid-render (click) 606703 497608 131 2309 8 0% 0 0 65.200861
lobsters (click) 8128863 6822677 3158 52784 104 0% 0 0 1794.125314
mail (click) 760254 686622 342 5318 14 0% 0 0 153.102189
psych-load (click) 263928 241000 61 617 3 0% 0 0 18.988781
railsbench (click) 3226757 2717151 1645 16193 52 0% 0 0 466.930656
rubocop (click) 5688724 4903963 2887 50511 110 0% 4 0 1483.184974
ruby-lsp (click) 824010 721739 305 4730 24 0% 0 0 133.126166
sequel (click) 471352 412811 11 94 0 0% 0 0 3.346084
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.209249
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.124728
erubi (click) 231922 212896 5 97 0 0% 0 0 3.167344
etanni (click) 27173 26329 8 88 0 0% 0 0 2.938855
fannkuchredux (click) 23046 13626 3 249 0 0% 0 0 7.345009
fluentd (click) 387733 334583 7 93 0 0% 0 0 3.192339
graphql (click) 399100 349792 66 676 0 0% 0 0 20.979459
graphql-native (click) 392132 343701 37 255 0 0% 0 0 8.620092
lee (click) 298748 269015 45 750 0 0% 0 0 23.268757
matmul (click) 10657 3512 8 109 0 0% 0 0 3.503871
nbody (click) 13065 17086 6 172 0 0% 0 0 4.409859
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.79366
optcarrot (click) 319096 242804 188 4399 34 0% 0 0 103.347277
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.040801
protoboeuf-encode (click) 221107 212146 14 1220 0 0% 0 0 31.131848
rack (click) 239032 220127 32 385 0 0% 0 0 9.898321
ruby-json (click) 23776 20702 8 181 0 0% 0 0 5.116997
rubyboy (click) 665353 649273 177 5803 40 0% 0 0 144.088136
rubykon (click) 133546 111856 137 1482 3 0% 0 0 42.45694
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.335665
tinygql (click) 282956 265404 58 762 5 0% 0 0 21.830359
30k_ifelse (click) 5658804 5284852 9259 51668 0 0% 0 0 1414.484715
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 449.886597
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.315562
fib (click) 2599 2861 3 26 0 0% 0 0 0.922814
getivar (click) 3501 4713 3 51 0 0% 0 0 1.344541
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.572178
loops-times (click) 6703 7405 5 71 0 0% 0 0 2.271521
object-new (click) 1933 2093 2 22 0 0% 0 0 0.827163
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.71301
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.885295
setivar (click) 2652 3389 3 31 0 0% 0 0 0.968755
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.139718
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.305987
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.055891
throw (click) 5848 4291 5 46 0 0% 0 0 1.602551

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.