YJIT Benchmarks

Details for Benchmarks at 2025-04-04 03:47:36 UTC

YJIT metrics from the yjit-bench suite using Ruby b4a94011ca.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 88.5% faster than CRuby 3.5.0dev
  • 7.2% faster than YJIT 3.3.6
On railsbench it is
  • 101.9% faster than CRuby 3.5.0dev
  • 3.6% 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 82 5 83 50 146 50 165
chunky-png 5 31 5 33 50 16 50 33
erubi-rails 5 16 5 16 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 409 5 431 50 587 50 631
liquid-compile 5 408 5 427 50 538 50 565
liquid-render 5 171 5 173 50 406 50 440
lobsters 5 19 5 19 50 10 50 10
mail 5 195 5 197 50 240 50 256
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 155 5 157 50 250 50 269
ruby-lsp 5 162 5 160 50 246 50 266
sequel 5 433 5 424 50 573 50 592
binarytrees 5 84 5 86 50 149 50 143
blurhash 5 82 5 88 50 127 50 145
erubi 5 125 5 143 50 99 50 144
etanni 5 90 5 101 50 54 50 72
fannkuchredux 5 52 5 58 50 99 50 107
fluentd 5 64 5 64 50 25 50 29
graphql 5 85 5 86 50 56 50 55
graphql-native 5 41 5 51 50 10 50 13
lee 5 23 5 23 50 10 50 10
matmul 5 51 5 54 50 85 50 95
nbody 5 248 5 281 50 577 50 637
nqueens 5 120 5 131 50 75 50 564
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 175 5 185 50 620 50 737
protoboeuf-encode 5 180 5 210 50 328 50 831
rack 5 585 5 638 50 944 50 1051
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 50 160
tinygql 5 36 5 37 50 23 50 29
30k_ifelse 5 28 5 28 50 216 50 205
30k_methods 5 38 5 38 50 484 50 477
cfunc_itself 5 346 5 369 50 1147 50 1258
fib 5 121 5 151 50 910 50 933
getivar 5 207 5 335 50 2237 50 2766
keyword_args 5 107 5 109 50 1042 50 1243
loops-times 5 24 5 27 50 48 50 64
object-new 5 323 5 327 50 405 50 385
respond_to 5 134 5 141 50 3258 50 3977
ruby-xor 5 242 5 263 50 803 50 1379
setivar 5 358 5 542 50 3192 50 5877
setivar_object 5 355 5 466 50 700 50 796
setivar_young 5 365 5 466 50 743 50 807
str_concat 5 397 5 459 50 976 50 1220
throw 5 1266 5 1260 50 1773 50 1748

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) 1424600 1183222 209 2202 0 0% 0 0 64.070084
chunky-png (click) 302463 250743 84 1124 1 0% 0 0 33.437462
erubi-rails (click) 1916373 1614621 260 2945 19 0% 0 0 86.72394
hexapdf (click) 1439119 1255696 595 13139 37 0% 0 0 377.661619
liquid-c (click) 470677 418967 115 1744 5 0% 0 0 48.234905
liquid-compile (click) 396532 342637 146 2091 2 0% 0 0 65.096753
liquid-render (click) 581510 510400 132 2310 8 0% 0 0 65.576195
lobsters (click) 8139164 6876182 3159 52813 104 0% 0 0 1810.815366
mail (click) 762207 705377 342 5317 14 0% 0 0 157.247464
psych-load (click) 242475 213515 61 617 3 0% 0 0 19.21419
railsbench (click) 3234197 2741994 1645 16186 52 0% 0 0 478.43978
rubocop (click) 5666130 4898445 2887 50540 110 0% 4 0 1484.337254
ruby-lsp (click) 823466 789505 305 4727 24 0% 0 0 134.314847
sequel (click) 444659 384144 11 94 0 0% 0 0 3.383337
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.258016
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.179914
erubi (click) 217120 177308 5 97 0 0% 0 0 3.222292
etanni (click) 30101 29597 8 88 0 0% 0 0 2.993725
fannkuchredux (click) 23031 13626 3 249 0 0% 0 0 7.372619
fluentd (click) 365891 323776 7 93 0 0% 0 0 3.213756
graphql (click) 401174 361191 66 676 0 0% 0 0 21.234458
graphql-native (click) 366824 316339 37 255 0 0% 0 0 8.620991
lee (click) 267865 226460 45 749 0 0% 0 0 23.665922
matmul (click) 10657 3512 8 109 0 0% 0 0 3.577749
nbody (click) 13050 17086 6 172 0 0% 0 0 4.401951
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.857426
optcarrot (click) 318856 234467 188 4395 34 0% 0 0 101.609099
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.121396
protoboeuf-encode (click) 221062 212146 14 1220 0 0% 0 0 31.150598
rack (click) 241840 189356 32 385 0 0% 0 0 10.138359
ruby-json (click) 23776 20731 8 178 0 0% 0 0 5.0849
rubyboy (click) 662938 589170 177 5805 40 0% 0 0 144.432718
rubykon (click) 133501 111856 137 1482 3 0% 0 0 42.688503
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.515147
tinygql (click) 263372 223744 58 762 5 0% 0 0 21.826998
30k_ifelse (click) 5658774 5284843 9259 51667 0 0% 0 0 1422.769107
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 455.372718
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.339506
fib (click) 2599 2861 3 26 0 0% 0 0 0.997875
getivar (click) 3501 4713 3 51 0 0% 0 0 1.322097
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.61194
loops-times (click) 6688 7405 5 70 0 0% 0 0 2.320576
object-new (click) 1918 2093 2 22 0 0% 0 0 0.810483
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.706408
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.94399
setivar (click) 2652 3389 3 31 0 0% 0 0 1.006307
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.12441
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.298936
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.047859
throw (click) 5848 4291 5 46 0 0% 0 0 1.606394

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.