YJIT Benchmarks

Details for Benchmarks at 2025-03-30 03:49:14 UTC

YJIT metrics from the yjit-bench suite using Ruby 9e87323ad0.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 88.8% faster than CRuby 3.5.0dev
  • 7.5% faster than YJIT 3.3.6
On railsbench it is
  • 100.3% faster than CRuby 3.5.0dev
  • 5.9% 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 83 5 84 50 156 50 165
chunky-png 5 32 5 34 50 15 50 34
erubi-rails 5 15 5 15 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 407 5 429 50 561 50 629
liquid-compile 5 408 5 413 50 541 50 567
liquid-render 5 172 5 171 50 403 50 441
lobsters 5 19 5 19 50 10 50 10
mail 5 188 5 196 50 236 50 253
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 157 5 158 50 249 50 263
ruby-lsp 5 155 5 165 50 243 50 275
sequel 5 430 5 411 50 572 50 571
binarytrees 5 84 5 86 50 149 50 142
blurhash 5 82 5 88 50 127 50 145
erubi 5 116 5 145 50 88 50 124
etanni 5 90 5 101 50 54 50 73
fannkuchredux 5 52 5 58 50 99 50 106
fluentd 5 64 5 62 50 26 50 29
graphql 5 84 5 87 50 57 50 59
graphql-native 5 48 5 52 50 10 50 14
lee 5 22 5 24 50 10 50 10
matmul 5 51 5 54 50 85 50 97
nbody 5 248 5 281 50 578 50 708
nqueens 5 120 5 130 50 75 50 566
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 175 5 184 50 619 50 727
protoboeuf-encode 5 180 5 209 50 327 50 807
rack 5 581 5 621 50 940 50 1048
ruby-json 5 84 5 83 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 50 159
tinygql 5 36 5 37 50 22 50 28
30k_ifelse 5 28 5 28 50 214 50 206
30k_methods 5 39 5 38 50 480 50 475
cfunc_itself 5 346 5 367 50 1147 50 1258
fib 5 127 5 148 50 910 50 933
getivar 5 206 5 342 50 2243 50 2777
keyword_args 5 107 5 111 50 1042 50 1243
loops-times 5 24 5 27 50 48 50 64
object-new 5 322 5 328 50 405 50 384
respond_to 5 133 5 141 50 3259 50 3982
ruby-xor 5 241 5 265 50 803 50 1383
setivar 5 358 5 545 50 3189 50 5881
setivar_object 5 355 5 467 50 701 50 808
setivar_young 5 365 5 466 50 745 50 814
str_concat 5 400 5 476 50 967 50 1225
throw 5 1265 5 1261 50 1766 50 1744

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) 1450461 1204436 209 2202 0 0% 0 0 65.336667
chunky-png (click) 327247 297241 84 1124 1 0% 0 0 33.392355
erubi-rails (click) 1925157 1655760 259 2961 19 0% 0 0 86.380594
hexapdf (click) 1465808 1293975 595 13138 41 0% 0 0 381.042729
liquid-c (click) 473065 369901 115 1744 5 0% 0 0 49.693417
liquid-compile (click) 430518 379351 146 2093 2 0% 0 0 66.790743
liquid-render (click) 608390 491971 132 2310 8 0% 0 0 65.022499
lobsters (click) 8151558 6853931 3160 52850 104 0% 0 0 1803.190061
mail (click) 764970 666584 342 5317 14 0% 0 0 154.845001
psych-load (click) 277816 261556 61 615 3 0% 0 0 19.280886
railsbench (click) 3233658 2741903 1645 16192 52 0% 0 0 475.274412
rubocop (click) 5693708 4878466 2887 50508 110 0% 4 0 1503.4482
ruby-lsp (click) 817461 755531 305 4732 24 0% 0 0 135.79169
sequel (click) 477341 426888 11 94 0 0% 0 0 3.217515
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.247119
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.260968
erubi (click) 256145 250387 5 97 0 0% 0 0 3.241446
etanni (click) 30101 29597 8 88 0 0% 0 0 3.032984
fannkuchredux (click) 23031 13626 3 249 0 0% 0 0 7.390353
fluentd (click) 389032 311891 7 93 0 0% 0 0 3.231364
graphql (click) 396382 348115 66 676 0 0% 0 0 21.363841
graphql-native (click) 368320 332280 37 255 0 0% 0 0 8.797669
lee (click) 300837 247014 45 749 0 0% 0 0 23.650385
matmul (click) 10657 3512 8 109 0 0% 0 0 3.607675
nbody (click) 13050 17086 6 172 0 0% 0 0 4.43131
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.937293
optcarrot (click) 318856 234467 188 4395 34 0% 0 0 104.274538
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.432874
protoboeuf-encode (click) 221062 212146 14 1220 0 0% 0 0 31.616419
rack (click) 262394 233092 32 385 0 0% 0 0 10.302107
ruby-json (click) 23776 20731 8 178 0 0% 0 0 5.097661
rubyboy (click) 686454 642487 177 5803 40 0% 0 0 145.786394
rubykon (click) 133501 111856 137 1482 3 0% 0 0 43.039848
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.550679
tinygql (click) 297164 253431 58 762 5 0% 0 0 22.141473
30k_ifelse (click) 5658774 5284843 9259 51667 0 0% 0 0 1431.922757
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 458.035245
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.351409
fib (click) 2599 2861 3 26 0 0% 0 0 0.996192
getivar (click) 3501 4713 3 51 0 0% 0 0 1.313931
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.659905
loops-times (click) 6688 7405 5 70 0 0% 0 0 2.274763
object-new (click) 1918 2093 2 22 0 0% 0 0 0.864895
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.729072
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.907801
setivar (click) 2652 3389 3 31 0 0% 0 0 0.98513
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.134355
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.30826
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.013048
throw (click) 5848 4291 5 46 0 0% 0 0 1.644696

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.