YJIT Benchmarks

Details for Benchmarks at 2025-04-03 03:49:10 UTC

YJIT metrics from the yjit-bench suite using Ruby 29dafa5fc2.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 89.0% faster than CRuby 3.5.0dev
  • 6.8% faster than YJIT 3.3.6
On railsbench it is
  • 104.4% faster than CRuby 3.5.0dev
  • 7.0% faster than YJIT 3.3.6
x86_64 runtime: 4 hours, 20 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 85 50 156 50 164
chunky-png 5 32 5 33 50 15 50 34
erubi-rails 5 16 5 16 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 421 5 429 50 585 50 634
liquid-compile 5 409 5 427 50 540 50 597
liquid-render 5 172 5 174 50 404 50 441
lobsters 5 19 5 19 50 10 50 10
mail 5 195 5 195 50 250 50 255
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 156 5 156 50 252 50 268
ruby-lsp 5 157 5 163 50 257 50 249
sequel 5 429 5 421 50 599 50 585
binarytrees 5 84 5 86 50 149 50 143
blurhash 5 82 5 88 50 127 50 145
erubi 5 124 5 141 50 98 50 122
etanni 5 90 5 102 50 53 50 73
fannkuchredux 5 52 5 58 50 99 50 107
fluentd 5 64 5 64 50 26 50 26
graphql 5 85 5 87 50 57 50 60
graphql-native 5 40 5 53 50 10 50 14
lee 5 23 5 23 50 10 50 10
matmul 5 51 5 54 50 85 50 95
nbody 5 248 5 282 50 577 50 637
nqueens 5 120 5 130 50 75 50 564
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 174 5 186 50 619 50 738
protoboeuf-encode 5 179 5 210 50 328 50 838
rack 5 577 5 626 50 943 50 1050
ruby-json 5 83 5 83 50 50 50 50
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 38 50 22 50 28
30k_ifelse 5 28 5 27 50 214 50 206
30k_methods 5 39 5 38 50 484 50 477
cfunc_itself 5 346 5 370 50 1147 50 1258
fib 5 127 5 151 50 910 50 933
getivar 5 207 5 329 50 2239 50 2767
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 50 405 50 386
respond_to 5 133 5 142 50 3259 50 3973
ruby-xor 5 241 5 261 50 803 50 1379
setivar 5 358 5 541 50 3189 50 5877
setivar_object 5 354 5 466 50 698 50 796
setivar_young 5 365 5 466 50 744 50 807
str_concat 5 401 5 456 50 969 50 1219
throw 5 1264 5 1261 50 1771 50 1760

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) 1430670 1244365 209 2202 0 0% 0 0 64.255823
chunky-png (click) 303507 227992 84 1124 1 0% 0 0 33.82398
erubi-rails (click) 1902410 1693098 260 2966 19 0% 0 0 82.048484
hexapdf (click) 1465651 1294336 595 13139 42 0% 0 0 378.023995
liquid-c (click) 479168 391992 115 1744 5 0% 0 0 48.457879
liquid-compile (click) 408097 335262 146 2092 2 0% 0 0 65.759279
liquid-render (click) 584906 455361 132 2310 8 0% 0 0 64.595917
lobsters (click) 8124324 6796764 3159 52731 104 0% 0 0 1818.551205
mail (click) 728136 627937 342 5317 14 0% 0 0 155.044625
psych-load (click) 246123 201291 61 617 3 0% 0 0 19.534928
railsbench (click) 3258077 2859760 1645 16197 52 0% 0 0 467.899699
rubocop (click) 5689298 4924652 2887 50509 110 0% 4 0 1503.782406
ruby-lsp (click) 846329 725290 305 4732 24 0% 0 0 134.621086
sequel (click) 477025 410266 11 94 0 0% 0 0 3.269802
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.257277
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.294325
erubi (click) 255846 217869 5 97 0 0% 0 0 3.256172
etanni (click) 30101 29597 8 88 0 0% 0 0 2.987065
fannkuchredux (click) 23031 13626 3 249 0 0% 0 0 7.363476
fluentd (click) 388691 344285 7 93 0 0% 0 0 3.158448
graphql (click) 426660 350887 66 676 0 0% 0 0 21.559325
graphql-native (click) 371239 318937 37 255 0 0% 0 0 8.720888
lee (click) 276894 235474 45 749 0 0% 0 0 23.568088
matmul (click) 10657 3512 8 109 0 0% 0 0 3.580193
nbody (click) 13050 17086 6 172 0 0% 0 0 4.370245
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.872072
optcarrot (click) 318856 234467 188 4395 34 0% 0 0 101.38016
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.139822
protoboeuf-encode (click) 221062 212146 14 1220 0 0% 0 0 31.394483
rack (click) 237566 227544 32 385 0 0% 0 0 10.346091
ruby-json (click) 23539 20400 8 178 0 0% 0 0 5.119731
rubyboy (click) 665469 609587 177 5803 40 0% 0 0 145.227088
rubykon (click) 133501 111856 137 1482 3 0% 0 0 42.930815
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.477346
tinygql (click) 296457 253340 58 762 5 0% 0 0 21.69072
30k_ifelse (click) 5658774 5284843 9259 51667 0 0% 0 0 1432.840008
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 458.575823
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.364386
fib (click) 2599 2861 3 26 0 0% 0 0 0.943504
getivar (click) 3501 4713 3 51 0 0% 0 0 1.310185
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.605952
loops-times (click) 6688 7405 5 70 0 0% 0 0 2.305317
object-new (click) 1918 2093 2 22 0 0% 0 0 0.859594
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.757201
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.887628
setivar (click) 2652 3389 3 31 0 0% 0 0 1.013017
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.128565
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.411359
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.004027
throw (click) 5848 4291 5 46 0 0% 0 0 1.626961

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.