YJIT Benchmarks

Details for Benchmarks at 2025-03-13 03:48:09 UTC

YJIT metrics from the yjit-bench suite using Ruby 200bf3134a.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 88.5% faster than CRuby 3.5.0dev
  • 7.3% faster than YJIT 3.3.6
On railsbench it is
  • 96.9% faster than CRuby 3.5.0dev
  • 4.5% 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 50 156 50 167
chunky-png 5 31 5 35 50 15 50 35
erubi-rails 5 15 5 16 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 411 5 435 50 596 50 645
liquid-compile 5 411 5 434 50 544 50 603
liquid-render 5 172 5 174 50 403 50 445
lobsters 5 19 5 19 50 10 50 10
mail 5 194 5 197 50 251 50 249
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 156 5 159 50 251 50 268
ruby-lsp 5 162 5 162 50 247 50 262
sequel 5 430 5 429 50 601 50 592
binarytrees 5 84 5 86 50 149 50 141
blurhash 5 82 5 88 50 127 50 145
erubi 5 125 5 141 50 85 50 122
etanni 5 90 5 102 50 54 50 73
fannkuchredux 5 52 5 54 50 98 50 100
fluentd 5 63 5 66 50 26 50 31
graphql 5 85 5 88 50 56 50 59
graphql-native 5 40 5 54 50 10 50 15
lee 5 23 5 23 50 10 50 10
matmul 5 51 5 53 50 85 50 96
nbody 5 248 5 279 50 577 50 705
nqueens 5 120 5 128 50 75 50 561
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 174 5 190 50 620 50 736
protoboeuf-encode 5 180 5 209 50 329 50 817
rack 5 577 5 628 50 948 50 1069
ruby-json 5 84 5 85 50 50 50 51
rubyboy 5 10 5 10 50 10 50 10
rubykon 5 20 5 22 50 10 50 10
sudoku 5 48 5 50 50 164 50 160
tinygql 5 36 5 39 50 23 50 25
30k_ifelse 5 28 5 28 50 214 50 206
30k_methods 5 38 5 38 50 483 50 477
cfunc_itself 5 345 5 367 50 1147 50 1258
fib 5 127 5 146 50 909 50 933
getivar 5 207 5 315 50 2241 50 2748
keyword_args 5 107 5 106 50 1042 50 1243
loops-times 5 24 5 28 50 48 50 65
object-new 5 322 5 327 50 405 50 381
respond_to 5 133 5 137 50 3257 50 3977
ruby-xor 5 241 5 260 50 803 50 1383
setivar 5 358 5 645 50 3185 50 5929
setivar_object 5 354 5 479 50 697 50 817
setivar_young 5 365 5 479 50 756 50 815
str_concat 5 397 5 438 50 969 50 1212
throw 5 1266 5 1295 50 1774 50 1716

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) 1448708 1299826 209 2204 0 0% 0 0 64.642627
chunky-png (click) 292451 216611 84 1129 1 0% 0 0 33.572603
erubi-rails (click) 1894653 1650676 259 2958 19 0% 0 0 82.503951
hexapdf (click) 1433625 1248145 595 13143 38 0% 0 0 378.797225
liquid-c (click) 487037 415538 114 1743 5 0% 0 0 48.814197
liquid-compile (click) 423982 330734 146 2062 2 0% 0 0 62.708821
liquid-render (click) 603681 478615 131 2309 8 0% 0 0 65.020461
lobsters (click) 8130407 6877506 3159 52658 104 0% 0 0 1818.979441
mail (click) 756629 675375 342 5318 14 0% 0 0 154.732229
psych-load (click) 264984 216821 61 617 3 0% 0 0 19.210891
railsbench (click) 3240773 2686547 1645 16212 52 0% 0 0 469.938414
rubocop (click) 5659550 4814394 2887 50555 110 0% 4 0 1497.942388
ruby-lsp (click) 839543 734882 305 4730 24 0% 0 0 134.564575
sequel (click) 477060 433612 11 94 0 0% 0 0 3.411718
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.264599
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.338779
erubi (click) 249006 210328 5 97 0 0% 0 0 3.253687
etanni (click) 27173 26329 8 88 0 0% 0 0 2.997593
fannkuchredux (click) 23046 13626 3 249 0 0% 0 0 7.370033
fluentd (click) 365180 316314 7 93 0 0% 0 0 3.221011
graphql (click) 390607 326314 66 676 0 0% 0 0 21.155338
graphql-native (click) 361588 341970 37 255 0 0% 0 0 8.646381
lee (click) 296696 275841 45 750 0 0% 0 0 23.441987
matmul (click) 10657 3512 8 109 0 0% 0 0 3.586693
nbody (click) 13065 17086 6 172 0 0% 0 0 4.416025
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.923761
optcarrot (click) 319096 242804 188 4399 34 0% 0 0 102.304315
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.317119
protoboeuf-encode (click) 221107 212146 14 1220 0 0% 0 0 31.438002
rack (click) 262290 214892 32 385 0 0% 0 0 10.225211
ruby-json (click) 23859 20840 8 178 0 0% 0 0 5.054967
rubyboy (click) 656504 574354 177 5803 40 0% 0 0 145.352224
rubykon (click) 134065 128972 137 1489 3 0% 0 0 42.944296
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.481298
tinygql (click) 292545 240917 58 762 5 0% 0 0 21.923546
30k_ifelse (click) 5658804 5284852 9259 51668 0 0% 0 0 1416.624381
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 456.279386
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.300488
fib (click) 2599 2861 3 26 0 0% 0 0 0.994458
getivar (click) 3501 4713 3 51 0 0% 0 0 1.324913
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.604884
loops-times (click) 6703 7405 5 71 0 0% 0 0 2.284996
object-new (click) 1933 2093 2 22 0 0% 0 0 0.85474
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.702768
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.882478
setivar (click) 2652 3389 3 31 0 0% 0 0 0.999547
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.161237
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.325183
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.009492
throw (click) 5848 4291 5 46 0 0% 0 0 1.603974

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.