YJIT Benchmarks

Details for Benchmarks at 2025-02-21 03:44:27 UTC

YJIT metrics from the yjit-bench suite using Ruby dbb3e021f5.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 87.6% faster than CRuby 3.5.0dev
  • 5.7% faster than YJIT 3.3.6
On railsbench it is
  • 103.0% faster than CRuby 3.5.0dev
  • 5.0% 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 81 5 83 50 155 50 162
chunky-png 5 31 5 34 50 15 50 35
erubi-rails 5 16 5 16 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 422 5 427 50 592 50 613
liquid-compile 5 412 5 411 50 540 50 560
liquid-render 5 171 5 174 50 404 50 433
lobsters 5 20 5 19 50 10 50 10
mail 5 196 5 198 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 5 159 50 250 50 267
ruby-lsp 5 155 5 164 50 242 50 263
sequel 5 434 5 420 50 600 50 588
binarytrees 5 84 5 86 50 149 50 142
blurhash 5 82 5 87 50 127 50 145
erubi 5 89 5 148 50 99 50 152
etanni 5 90 5 101 50 54 50 71
fannkuchredux 5 51 5 59 50 99 50 104
fluentd 5 63 5 64 50 25 50 31
graphql 5 85 5 86 50 57 50 53
graphql-native 5 40 5 53 50 10 50 15
lee 5 22 5 23 50 10 50 10
matmul 5 51 5 53 50 85 50 95
nbody 5 248 5 286 50 577 50 707
nqueens 5 120 5 130 50 75 50 567
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 174 5 185 50 620 50 652
protoboeuf-encode 5 179 5 210 50 326 50 830
rack 5 580 5 635 50 952 50 1066
ruby-json 5 84 5 84 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 51 50 164 50 160
tinygql 5 36 5 37 50 22 50 28
30k_ifelse 5 28 5 27 50 215 50 207
30k_methods 5 38 5 38 50 484 50 476
cfunc_itself 5 345 5 353 50 1147 50 1258
fib 5 127 5 146 50 910 50 933
getivar 5 207 5 335 50 2239 50 2764
keyword_args 5 107 5 109 50 1042 50 1243
loops-times 5 24 5 27 50 48 50 63
object-new 5 322 5 313 50 404 50 343
respond_to 5 134 5 141 50 3257 50 3981
ruby-xor 5 240 5 260 50 803 50 1379
setivar 5 358 5 650 50 3195 50 5931
setivar_object 5 355 5 481 50 700 50 814
setivar_young 5 365 5 481 50 743 50 822
str_concat 5 401 5 454 50 967 50 1218
throw 5 1267 5 1271 50 1771 50 1690

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) 1427030 1215336 209 2204 0 0% 0 0 64.018207
chunky-png (click) 305824 255098 84 1124 1 0% 0 0 33.268546
erubi-rails (click) 1893143 1619293 259 2973 19 0% 0 0 81.006855
hexapdf (click) 1440970 1253420 595 13143 40 0% 0 0 373.360341
liquid-c (click) 479540 415330 114 1743 5 0% 0 0 47.541665
liquid-compile (click) 399712 300724 146 2090 2 0% 0 0 65.247191
liquid-render (click) 577400 462485 131 2309 8 0% 0 0 64.415733
lobsters (click) 8149751 6813918 3158 52890 104 0% 0 0 1810.177737
mail (click) 753514 631894 342 5318 14 0% 0 0 156.333266
psych-load (click) 269526 237086 61 617 3 0% 0 0 19.2728
railsbench (click) 3246453 2637027 1645 16270 52 0% 0 0 463.943648
rubocop (click) 5685105 4975203 2887 50521 110 0% 4 0 1486.838813
ruby-lsp (click) 808703 712578 305 4733 24 0% 0 0 133.785889
sequel (click) 447869 382943 11 94 0 0% 0 0 3.514034
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.230625
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.085606
erubi (click) 245011 198693 5 97 0 0% 0 0 3.222338
etanni (click) 27173 26329 8 88 0 0% 0 0 2.986795
fannkuchredux (click) 23046 13626 3 249 0 0% 0 0 7.324469
fluentd (click) 360642 310691 7 93 0 0% 0 0 3.170968
graphql (click) 418462 342756 66 676 0 0% 0 0 20.805398
graphql-native (click) 362130 316909 37 255 0 0% 0 0 8.710614
lee (click) 269985 242631 45 750 0 0% 0 0 23.402903
matmul (click) 10657 3512 8 109 0 0% 0 0 3.531663
nbody (click) 13065 17086 6 172 0 0% 0 0 4.42768
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.867003
optcarrot (click) 319096 242804 188 4399 34 0% 0 0 102.651147
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.03072
protoboeuf-encode (click) 221107 212146 14 1220 0 0% 0 0 31.022201
rack (click) 245206 202107 32 385 0 0% 0 0 10.050687
ruby-json (click) 19367 16755 8 178 0 0% 0 0 4.946322
rubyboy (click) 671580 605063 177 5805 40 0% 0 0 144.288555
rubykon (click) 133546 111856 137 1482 3 0% 0 0 42.281575
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.427111
tinygql (click) 278794 230244 58 762 5 0% 0 0 21.327166
30k_ifelse (click) 5658804 5284852 9259 51668 0 0% 0 0 1407.850147
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 449.528983
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.351207
fib (click) 2599 2861 3 26 0 0% 0 0 0.982757
getivar (click) 3501 4713 3 51 0 0% 0 0 1.343552
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.606079
loops-times (click) 6703 7405 5 71 0 0% 0 0 2.296579
object-new (click) 1933 2093 2 22 0 0% 0 0 0.852175
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.731606
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.868462
setivar (click) 2652 3389 3 31 0 0% 0 0 1.006695
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.112919
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.356337
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.007065
throw (click) 5848 4291 5 46 0 0% 0 0 1.592297

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.