YJIT Benchmarks

Details for Benchmarks at 2025-03-04 03:46:30 UTC

YJIT metrics from the yjit-bench suite using Ruby 53f8b269ef.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 86.8% faster than CRuby 3.5.0dev
  • 5.9% faster than YJIT 3.3.6
On railsbench it is
  • 96.6% faster than CRuby 3.5.0dev
  • 5.3% 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 81 5 84 50 157 50 164
chunky-png 5 32 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 5 420 5 424 50 590 50 616
liquid-compile 5 412 5 431 50 539 50 561
liquid-render 5 171 5 175 50 405 50 442
lobsters 5 20 5 20 50 10 50 10
mail 5 196 5 197 50 251 50 250
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 156 5 158 50 250 50 268
ruby-lsp 5 159 5 165 50 242 50 276
sequel 5 433 5 430 50 601 50 583
binarytrees 5 84 5 86 50 149 50 141
blurhash 5 82 5 87 50 127 50 144
erubi 5 115 5 145 50 99 50 150
etanni 5 90 5 101 50 54 50 72
fannkuchredux 5 52 5 57 50 99 50 110
fluentd 5 64 5 66 50 25 50 32
graphql 5 85 5 85 50 56 50 60
graphql-native 5 40 5 52 50 10 50 16
lee 5 22 5 23 50 10 50 10
matmul 5 51 5 54 50 85 50 96
nbody 5 247 5 288 50 577 50 706
nqueens 5 120 5 128 50 75 50 563
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 175 5 186 50 620 50 723
protoboeuf-encode 5 180 5 211 50 328 50 834
rack 5 575 5 645 50 954 50 1067
ruby-json 5 84 5 85 50 50 50 50
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 50 162
tinygql 5 36 5 38 50 23 50 27
30k_ifelse 5 28 5 28 50 216 50 207
30k_methods 5 39 5 39 50 480 50 475
cfunc_itself 5 345 5 355 50 1147 50 1258
fib 5 127 5 152 50 909 50 932
getivar 5 207 5 318 50 2239 50 2766
keyword_args 5 107 5 109 50 1042 50 1243
loops-times 5 24 5 27 50 48 50 65
object-new 5 322 5 327 50 404 50 389
respond_to 5 133 5 138 50 3258 50 3983
ruby-xor 5 240 5 234 50 803 50 1389
setivar 5 364 5 638 50 3184 50 5930
setivar_object 5 355 5 478 50 700 50 819
setivar_young 5 365 5 477 50 744 50 815
str_concat 5 401 5 482 50 969 50 1225
throw 5 1265 5 1279 50 1773 50 1730

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) 1420973 1193370 209 2204 0 0% 0 0 63.670611
chunky-png (click) 309546 265165 84 1124 1 0% 0 0 33.119387
erubi-rails (click) 1899835 1622919 259 2971 19 0% 0 0 83.237355
hexapdf (click) 1453420 1315200 596 13153 40 0% 0 0 376.762961
liquid-c (click) 485194 421170 114 1743 5 0% 0 0 47.84915
liquid-compile (click) 431552 362034 146 2088 2 0% 0 0 64.204224
liquid-render (click) 606579 529996 131 2309 8 0% 0 0 64.606838
lobsters (click) 8157699 6879804 3158 52828 104 0% 0 0 1788.17939
mail (click) 727560 633476 342 5318 14 0% 0 0 155.374466
psych-load (click) 243700 213518 61 617 3 0% 0 0 19.468143
railsbench (click) 3241624 2776959 1645 16193 52 0% 0 0 465.592765
rubocop (click) 5677716 4887863 2887 50553 110 0% 4 0 1469.885144
ruby-lsp (click) 848570 725469 305 4735 24 0% 0 0 132.99985
sequel (click) 464729 390740 11 94 0 0% 0 0 3.529167
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.212733
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.075058
erubi (click) 228932 191350 5 97 0 0% 0 0 3.218591
etanni (click) 27173 26329 8 88 0 0% 0 0 3.007633
fannkuchredux (click) 23046 13626 3 249 0 0% 0 0 7.294172
fluentd (click) 388454 326361 7 93 0 0% 0 0 3.104704
graphql (click) 397446 355790 66 676 0 0% 0 0 20.837611
graphql-native (click) 392861 352952 37 255 0 0% 0 0 8.523907
lee (click) 277798 259902 45 750 0 0% 0 0 23.198494
matmul (click) 10657 3512 8 109 0 0% 0 0 3.508661
nbody (click) 13065 17086 6 172 0 0% 0 0 4.38885
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.796246
optcarrot (click) 319096 242804 188 4399 34 0% 0 0 101.286067
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.196327
protoboeuf-encode (click) 221107 212146 14 1220 0 0% 0 0 31.146173
rack (click) 256693 226854 32 385 0 0% 0 0 10.154761
ruby-json (click) 20126 17605 9 184 0 0% 0 0 5.199043
rubyboy (click) 679910 611411 177 5803 40 0% 0 0 142.907034
rubykon (click) 134065 128972 137 1489 3 0% 0 0 42.538744
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.405291
tinygql (click) 294597 274999 58 762 5 0% 0 0 21.431493
30k_ifelse (click) 5658804 5284852 9259 51668 0 0% 0 0 1412.448838
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 450.825554
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.308593
fib (click) 2599 2861 3 26 0 0% 0 0 0.996252
getivar (click) 3501 4713 3 51 0 0% 0 0 1.330217
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.57702
loops-times (click) 6703 7405 5 71 0 0% 0 0 2.303176
object-new (click) 1933 2093 2 22 0 0% 0 0 0.826036
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.707462
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.891074
setivar (click) 2652 3389 3 31 0 0% 0 0 1.006766
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.10203
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.313276
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.041313
throw (click) 5848 4291 5 46 0 0% 0 0 1.61074

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.