YJIT Benchmarks

Details for Benchmarks at 2025-04-05 03:47:10 UTC

YJIT metrics from the yjit-bench suite using Ruby 229784d160.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 88.0% faster than CRuby 3.5.0dev
  • 5.5% faster than YJIT 3.3.6
On railsbench it is
  • 94.4% faster than CRuby 3.5.0dev
  • 3.0% 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 83 5 84 50 157 50 165
chunky-png 5 32 5 34 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 5 421 5 433 50 588 50 638
liquid-compile 5 407 5 416 50 549 50 569
liquid-render 5 169 5 175 50 403 50 440
lobsters 5 19 5 19 50 10 50 10
mail 5 195 5 199 50 251 50 256
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 156 5 157 50 252 50 268
ruby-lsp 5 154 5 158 50 258 50 258
sequel 5 434 5 425 50 598 50 596
binarytrees 5 84 5 86 50 149 50 142
blurhash 5 82 5 88 50 127 50 145
erubi 5 125 5 143 50 29 50 143
etanni 5 90 5 103 50 53 50 73
fannkuchredux 5 52 5 58 50 93 50 108
fluentd 5 64 5 62 50 25 50 28
graphql 5 85 5 86 50 57 50 56
graphql-native 5 40 5 52 50 10 50 15
lee 5 22 5 23 50 10 50 10
matmul 5 51 5 54 50 85 50 96
nbody 5 248 5 283 50 578 50 646
nqueens 5 120 5 129 50 75 50 565
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 174 5 185 50 619 50 732
protoboeuf-encode 5 180 5 209 50 328 50 846
rack 5 582 5 626 50 950 50 1077
ruby-json 5 84 5 84 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 51 50 164 50 160
tinygql 5 36 5 38 50 23 50 29
30k_ifelse 5 28 5 28 50 213 50 206
30k_methods 5 38 5 38 50 483 50 474
cfunc_itself 5 346 5 341 50 1147 50 1258
fib 5 114 5 147 50 909 50 933
getivar 5 207 5 309 50 2240 50 2740
keyword_args 5 107 5 108 50 1024 50 1243
loops-times 5 24 5 27 50 48 50 64
object-new 5 322 5 329 50 404 50 388
respond_to 5 133 5 142 50 3257 50 3982
ruby-xor 5 241 5 262 50 803 50 1381
setivar 5 358 5 537 50 3190 50 5875
setivar_object 5 354 5 461 50 702 50 797
setivar_young 5 364 5 461 50 742 50 802
str_concat 5 398 5 453 50 970 50 1228
throw 5 1265 5 1262 50 1773 50 1750

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) 1422089 1180073 209 2202 0 0% 0 0 64.254813
chunky-png (click) 296094 228544 84 1129 1 0% 0 0 33.449709
erubi-rails (click) 1902666 1612540 259 2956 19 0% 0 0 82.68375
hexapdf (click) 1439265 1261671 596 13143 41 0% 0 0 381.202251
liquid-c (click) 500262 386229 115 1744 5 0% 0 0 48.759699
liquid-compile (click) 402383 369447 146 2092 2 0% 0 0 66.124659
liquid-render (click) 573879 471309 132 2310 8 0% 0 0 65.32404
lobsters (click) 8136119 6741434 3160 52832 104 0% 0 0 1816.179614
mail (click) 762961 673070 342 5317 14 0% 0 0 155.182137
psych-load (click) 272872 233228 61 615 3 0% 0 0 19.373451
railsbench (click) 3264587 2851527 1645 16257 52 0% 0 0 473.785888
rubocop (click) 5688881 4948458 2887 50504 110 0% 4 0 1498.614699
ruby-lsp (click) 809677 702324 305 4727 24 0% 0 0 134.725395
sequel (click) 454001 389820 11 94 0 0% 0 0 3.261005
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.241266
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.299783
erubi (click) 228886 193161 5 97 0 0% 0 0 3.224457
etanni (click) 30101 29597 8 88 0 0% 0 0 3.028621
fannkuchredux (click) 23031 13626 3 249 0 0% 0 0 7.404859
fluentd (click) 358796 286322 7 93 0 0% 0 0 3.263323
graphql (click) 398253 357593 66 676 0 0% 0 0 21.274043
graphql-native (click) 365369 321263 37 255 0 0% 0 0 8.741337
lee (click) 296326 203286 45 749 0 0% 0 0 23.64972
matmul (click) 10657 3512 8 109 0 0% 0 0 3.608247
nbody (click) 13050 17086 6 172 0 0% 0 0 4.443823
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.881768
optcarrot (click) 318856 234467 188 4395 34 0% 0 0 103.748747
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.497511
protoboeuf-encode (click) 221062 212146 14 1220 0 0% 0 0 31.496124
rack (click) 234675 217236 32 385 0 0% 0 0 10.240842
ruby-json (click) 20004 17403 8 178 0 0% 0 0 5.050764
rubyboy (click) 686264 610071 177 5805 40 0% 0 0 145.357638
rubykon (click) 133501 111856 137 1482 3 0% 0 0 42.895915
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.610619
tinygql (click) 270783 231004 58 762 5 0% 0 0 21.936375
30k_ifelse (click) 5658774 5284843 9259 51667 0 0% 0 0 1420.357684
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 456.135136
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.347097
fib (click) 2599 2861 3 26 0 0% 0 0 0.97314
getivar (click) 3501 4713 3 51 0 0% 0 0 1.334703
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.62064
loops-times (click) 6688 7405 5 70 0 0% 0 0 2.35739
object-new (click) 1918 2093 2 22 0 0% 0 0 0.815206
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.724328
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.919771
setivar (click) 2652 3389 3 31 0 0% 0 0 0.972091
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.163757
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.333621
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.081997
throw (click) 5848 4291 5 46 0 0% 0 0 1.65321

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.