YJIT Benchmarks

Details for Benchmarks at 2025-04-10 03:48:34 UTC

YJIT metrics from the yjit-bench suite using Ruby 0d6263bd41.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 89.6% faster than CRuby 3.5.0dev
  • 8.1% faster than YJIT 3.3.6
On railsbench it is
  • 106.0% faster than CRuby 3.5.0dev
  • 9.1% faster than YJIT 3.3.6
x86_64 runtime: 4 hours, 19 minutes
aarch64 runtime: 3 hours, 42 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 50 156 50 159
chunky-png 5 32 5 35 50 15 50 34
erubi-rails 5 16 5 15 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 418 5 429 50 572 50 623
liquid-compile 5 409 5 463 50 537 50 688
liquid-render 5 171 5 172 50 403 50 438
lobsters 5 20 5 19 50 10 50 10
mail 5 194 5 197 50 251 50 252
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 157 5 159 50 249 50 270
ruby-lsp 5 156 5 159 50 247 50 270
sequel 5 421 5 423 50 601 50 585
binarytrees 5 84 5 83 50 149 50 134
blurhash 5 82 5 88 50 125 50 145
erubi 5 119 5 142 50 91 50 146
etanni 5 89 5 102 50 54 50 71
fannkuchredux 5 52 5 58 50 99 50 107
fluentd 5 63 5 63 50 25 50 28
graphql 5 85 5 88 50 57 50 59
graphql-native 5 40 5 51 50 10 50 12
lee 5 23 5 26 50 10 50 10
matmul 5 51 5 55 50 85 50 85
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 5 185 50 620 50 720
protoboeuf-encode 5 178 5 184 50 329 50 821
rack 5 591 5 641 50 946 50 1045
ruby-json 5 84 5 84 50 50 50 49
rubyboy 5 10 5 10 50 10 50 10
rubykon 5 21 5 23 50 10 50 10
sudoku 5 48 5 51 50 164 50 159
tinygql 5 35 5 38 50 22 50 29
30k_ifelse 5 28 5 27 50 215 50 206
30k_methods 5 38 5 37 50 482 50 478
cfunc_itself 5 346 5 353 50 1147 50 1258
fib 5 119 5 146 50 910 50 933
getivar 5 207 5 339 50 2242 50 2759
keyword_args 5 104 5 110 50 1042 50 1243
loops-times 5 24 5 27 50 48 50 65
object-new 5 323 5 325 50 405 50 386
respond_to 5 133 5 142 50 3258 50 3983
ruby-xor 5 239 5 260 50 803 50 1372
setivar 5 358 5 549 50 3189 50 5878
setivar_object 5 355 5 465 50 710 50 812
setivar_young 5 365 5 465 50 743 50 816
str_concat 5 396 5 470 50 970 50 1225
throw 5 1265 5 1251 50 1777 50 1719

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) 1437496 1161670 209 2202 0 0% 0 0 64.098126
chunky-png (click) 306353 255607 84 1124 1 0% 0 0 33.606863
erubi-rails (click) 1925138 1639433 259 2973 19 0% 0 0 82.906779
hexapdf (click) 1466430 1310989 596 13149 41 0% 0 0 379.787181
liquid-c (click) 483957 389118 115 1744 5 0% 0 0 48.882996
liquid-compile (click) 429254 385639 146 2077 2 0% 0 0 64.913221
liquid-render (click) 577929 505673 132 2310 8 0% 0 0 65.65267
lobsters (click) 8143087 6881362 3160 52775 104 0% 0 0 1830.287064
mail (click) 740875 653657 342 5317 14 0% 0 0 155.782445
psych-load (click) 263520 241725 61 615 3 0% 0 0 19.395259
railsbench (click) 3230122 2680142 1645 16210 52 0% 0 0 501.637638
rubocop (click) 5672831 4797121 2887 50563 110 0% 4 0 1503.997504
ruby-lsp (click) 807778 722756 305 4732 24 0% 0 0 136.325393
sequel (click) 475891 425993 11 92 0 0% 0 0 3.193342
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.316332
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.285492
erubi (click) 255884 225950 5 97 0 0% 0 0 3.219543
etanni (click) 30101 29597 8 88 0 0% 0 0 2.987172
fannkuchredux (click) 23031 13626 3 249 0 0% 0 0 7.376789
fluentd (click) 391945 314218 7 93 0 0% 0 0 3.231679
graphql (click) 402788 378823 66 676 0 0% 0 0 21.651163
graphql-native (click) 392657 337550 37 255 0 0% 0 0 8.692087
lee (click) 300169 255024 45 749 0 0% 0 0 23.628819
matmul (click) 10657 3512 8 109 0 0% 0 0 3.544799
nbody (click) 13050 17086 6 172 0 0% 0 0 4.377557
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.870118
optcarrot (click) 318856 234467 188 4395 34 0% 0 0 101.369117
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.134218
protoboeuf-encode (click) 221062 212146 14 1220 0 0% 0 0 31.3456
rack (click) 265887 235310 32 385 0 0% 0 0 10.390009
ruby-json (click) 23776 20731 8 178 0 0% 0 0 5.081324
rubyboy (click) 687987 619156 177 5803 40 0% 0 0 143.491218
rubykon (click) 133501 111856 137 1482 3 0% 0 0 43.077831
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.553154
tinygql (click) 298283 254397 58 762 5 0% 0 0 21.944577
30k_ifelse (click) 5658774 5284843 9259 51667 0 0% 0 0 1420.350951
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 457.762742
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.340515
fib (click) 2599 2861 3 26 0 0% 0 0 0.9698
getivar (click) 3501 4713 3 51 0 0% 0 0 1.316066
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.609664
loops-times (click) 6688 7405 5 70 0 0% 0 0 2.322571
object-new (click) 1918 2093 2 22 0 0% 0 0 0.83108
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.716428
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.907709
setivar (click) 2652 3389 3 31 0 0% 0 0 0.97012
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.07831
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.319237
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.026013
throw (click) 5848 4291 5 46 0 0% 0 0 1.619879

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.