YJIT Benchmarks

Details for Benchmarks at 2025-04-08 03:48:13 UTC

YJIT metrics from the yjit-bench suite using Ruby d17ab5a430.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 90.8% faster than CRuby 3.5.0dev
  • 8.6% faster than YJIT 3.3.6
On railsbench it is
  • 104.9% faster than CRuby 3.5.0dev
  • 6.7% 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 50 155 50 166
chunky-png 5 32 5 34 50 15 50 34
erubi-rails 5 15 5 15 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 419 5 432 50 566 50 642
liquid-compile 5 413 5 466 50 541 50 688
liquid-render 5 170 5 171 50 403 50 434
lobsters 5 19 5 19 50 10 50 10
mail 5 194 5 194 50 251 50 254
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 156 5 161 50 251 50 270
ruby-lsp 5 158 5 162 50 260 50 269
sequel 5 421 5 427 50 596 50 587
binarytrees 5 84 5 84 50 149 50 134
blurhash 5 82 5 88 50 127 50 145
erubi 5 125 5 147 50 92 50 146
etanni 5 90 5 102 50 54 50 70
fannkuchredux 5 52 5 58 50 99 50 108
fluentd 5 63 5 63 50 25 50 28
graphql 5 85 5 85 50 56 50 60
graphql-native 5 50 5 53 50 11 50 15
lee 5 22 5 25 50 10 50 10
matmul 5 51 5 55 50 85 50 86
nbody 5 248 5 283 50 578 50 626
nqueens 5 120 5 130 50 75 50 561
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 175 5 186 50 620 50 716
protoboeuf-encode 5 179 5 202 50 327 50 822
rack 5 582 5 644 50 952 50 1044
ruby-json 5 84 5 84 50 50 50 51
rubyboy 5 10 5 10 50 10 50 10
rubykon 5 21 5 23 50 10 50 10
sudoku 5 47 5 51 50 164 50 159
tinygql 5 35 5 38 50 22 50 29
30k_ifelse 5 28 5 28 50 215 50 206
30k_methods 5 39 5 38 50 482 50 476
cfunc_itself 5 346 5 352 50 1147 50 1258
fib 5 127 5 146 50 910 50 933
getivar 5 207 5 338 50 2238 50 2766
keyword_args 5 107 5 110 50 1042 50 1244
loops-times 5 24 5 27 50 45 50 65
object-new 5 323 5 325 50 405 50 385
respond_to 5 132 5 142 50 3259 50 3980
ruby-xor 5 240 5 259 50 803 50 1373
setivar 5 358 5 550 50 3188 50 5883
setivar_object 5 354 5 465 50 697 50 809
setivar_young 5 364 5 465 50 744 50 816
str_concat 5 401 5 467 50 970 50 1222
throw 5 1264 5 1249 50 1784 50 1717

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) 1436919 1144796 209 2202 0 0% 0 0 64.786551
chunky-png (click) 317260 240108 84 1124 1 0% 0 0 33.506441
erubi-rails (click) 1931185 1637205 259 3024 19 0% 0 0 83.759511
hexapdf (click) 1454340 1292674 595 13142 40 0% 0 0 382.229825
liquid-c (click) 503595 429355 115 1744 5 0% 0 0 48.774293
liquid-compile (click) 429516 386057 146 2083 2 0% 0 0 65.209724
liquid-render (click) 574815 479548 132 2310 8 0% 0 0 66.139125
lobsters (click) 8144695 6863449 3160 52904 105 0% 0 0 1840.002051
mail (click) 764567 690740 342 5317 14 0% 0 0 158.100353
psych-load (click) 277069 244264 61 617 3 0% 0 0 19.406696
railsbench (click) 3229466 2736701 1645 16192 52 0% 0 0 499.561807
rubocop (click) 5694930 4872362 2887 50544 110 0% 4 0 1588.901287
ruby-lsp (click) 846329 749878 305 4732 24 0% 0 0 135.505711
sequel (click) 464042 375352 11 94 0 0% 0 0 3.738709
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.30095
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.185466
erubi (click) 227617 200365 5 97 0 0% 0 0 3.251188
etanni (click) 30101 29597 8 88 0 0% 0 0 2.992179
fannkuchredux (click) 23031 13626 3 249 0 0% 0 0 7.3846
fluentd (click) 367119 310595 7 93 0 0% 0 0 3.247938
graphql (click) 426211 333573 66 676 0 0% 0 0 21.534711
graphql-native (click) 383465 346352 37 255 0 0% 0 0 8.799685
lee (click) 286399 236036 45 749 0 0% 0 0 23.727754
matmul (click) 10657 3512 8 109 0 0% 0 0 3.556178
nbody (click) 13050 17086 6 172 0 0% 0 0 4.41189
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.869068
optcarrot (click) 318856 234467 188 4395 34 0% 0 0 100.592213
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.236073
protoboeuf-encode (click) 221062 212146 14 1220 0 0% 0 0 31.474839
rack (click) 263211 241707 32 385 0 0% 0 0 10.418331
ruby-json (click) 23859 20840 8 178 0 0% 0 0 5.042384
rubyboy (click) 689352 587564 177 5805 40 0% 0 0 144.663479
rubykon (click) 133501 111856 137 1482 3 0% 0 0 43.011125
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.573532
tinygql (click) 295516 244190 58 762 5 0% 0 0 21.76823
30k_ifelse (click) 5658774 5284843 9259 51667 0 0% 0 0 1426.42298
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 456.956396
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.336072
fib (click) 2599 2861 3 26 0 0% 0 0 0.952323
getivar (click) 3501 4713 3 51 0 0% 0 0 1.338964
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.586345
loops-times (click) 6688 7405 5 70 0 0% 0 0 2.313635
object-new (click) 1918 2093 2 22 0 0% 0 0 0.806415
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.722849
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.903918
setivar (click) 2652 3389 3 31 0 0% 0 0 1.008527
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.1326
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.340546
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.024209
throw (click) 5848 4291 5 46 0 0% 0 0 1.606251

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.