YJIT Benchmarks

Details for Benchmarks at 2025-03-10 03:43:15 UTC

YJIT metrics from the yjit-bench suite using Ruby cdf36d6bfd.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 86.2% faster than CRuby 3.5.0dev
  • 6.3% faster than YJIT 3.3.6
On railsbench it is
  • 97.0% faster than CRuby 3.5.0dev
  • 2.8% 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 82 5 85 50 158 50 164
chunky-png 5 32 5 35 50 16 50 35
erubi-rails 5 16 5 16 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 421 5 432 50 590 50 641
liquid-compile 5 410 5 419 50 537 50 564
liquid-render 5 169 5 173 50 405 50 445
lobsters 5 20 5 20 50 10 50 10
mail 5 195 5 196 50 238 50 248
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 157 5 160 50 253 50 268
ruby-lsp 5 161 5 166 50 236 50 242
sequel 5 434 5 420 50 576 50 576
binarytrees 5 84 5 87 50 149 50 141
blurhash 5 82 5 88 50 127 50 145
erubi 5 125 5 144 50 89 50 150
etanni 5 90 5 103 50 54 50 74
fannkuchredux 5 52 5 57 50 99 50 109
fluentd 5 64 5 65 50 25 50 34
graphql 5 84 5 85 50 57 50 60
graphql-native 5 49 5 52 50 10 50 14
lee 5 22 5 23 50 10 50 10
matmul 5 51 5 53 50 85 50 97
nbody 5 247 5 290 50 577 50 637
nqueens 5 120 5 130 50 75 50 563
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 175 5 188 50 620 50 731
protoboeuf-encode 5 180 5 207 50 328 50 821
rack 5 575 5 622 50 947 50 1059
ruby-json 5 84 5 85 50 50 50 51
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 50 162
tinygql 5 36 5 38 50 23 50 29
30k_ifelse 5 28 5 28 50 215 50 208
30k_methods 5 39 5 38 50 476 50 469
cfunc_itself 5 345 5 358 50 1147 50 1258
fib 5 127 5 124 50 889 50 933
getivar 5 206 5 305 50 2239 50 2744
keyword_args 5 107 5 109 50 1042 50 1243
loops-times 5 24 5 27 50 48 50 65
object-new 5 322 5 326 50 405 50 379
respond_to 5 134 5 138 50 3258 50 3981
ruby-xor 5 240 5 262 50 803 50 1383
setivar 5 358 5 637 50 3185 50 5855
setivar_object 5 348 5 481 50 700 50 819
setivar_young 5 365 5 480 50 742 50 816
str_concat 5 398 5 463 50 969 50 1214
throw 5 1266 5 1290 50 1770 50 1692

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 1283329 209 2204 0 0% 0 0 65.12176
chunky-png (click) 294713 268992 84 1124 1 0% 0 0 33.156959
erubi-rails (click) 1900165 1608101 259 2947 19 0% 0 0 86.881275
hexapdf (click) 1462821 1265961 595 13143 41 0% 0 0 381.514343
liquid-c (click) 476122 420336 114 1743 5 0% 0 0 50.04031
liquid-compile (click) 400831 360315 146 2088 2 0% 0 0 65.667603
liquid-render (click) 577070 445856 131 2309 8 0% 0 0 66.038852
lobsters (click) 8124699 6773767 3160 52617 104 0% 0 0 1825.900126
mail (click) 736122 665524 342 5318 14 0% 0 0 155.6931
psych-load (click) 247530 234254 61 617 3 0% 0 0 19.448654
railsbench (click) 3256966 2733686 1645 16213 52 0% 0 0 468.711262
rubocop (click) 5662353 4866195 2887 50562 110 0% 4 0 1583.894137
ruby-lsp (click) 808703 720712 305 4735 24 0% 0 0 135.35233
sequel (click) 449491 400926 11 94 0 0% 0 0 3.516833
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.218711
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.151524
erubi (click) 252346 212530 5 97 0 0% 0 0 3.257284
etanni (click) 27173 26329 8 88 0 0% 0 0 2.97396
fannkuchredux (click) 23046 13626 3 249 0 0% 0 0 7.406607
fluentd (click) 363895 298841 7 93 0 0% 0 0 3.19692
graphql (click) 395756 364080 66 676 0 0% 0 0 21.218956
graphql-native (click) 389247 341760 37 255 0 0% 0 0 8.692391
lee (click) 271906 228454 45 750 0 0% 0 0 23.727437
matmul (click) 10657 3512 8 109 0 0% 0 0 3.556669
nbody (click) 13065 17086 6 172 0 0% 0 0 4.440601
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.896514
optcarrot (click) 319096 242804 188 4399 34 0% 0 0 101.815926
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.495482
protoboeuf-encode (click) 221107 212146 14 1220 0 0% 0 0 31.706229
rack (click) 236235 215955 32 385 0 0% 0 0 9.912259
ruby-json (click) 23859 20840 8 178 0 0% 0 0 5.135506
rubyboy (click) 658308 584168 177 5805 40 0% 0 0 147.199545
rubykon (click) 134065 128972 137 1489 3 0% 0 0 42.956793
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.524922
tinygql (click) 292998 241084 58 762 5 0% 0 0 21.953647
30k_ifelse (click) 5658804 5284852 9259 51668 0 0% 0 0 1420.074829
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 453.310806
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.333457
fib (click) 2599 2861 3 26 0 0% 0 0 0.966587
getivar (click) 3501 4713 3 51 0 0% 0 0 1.338093
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.606473
loops-times (click) 6703 7405 5 71 0 0% 0 0 2.33515
object-new (click) 1933 2093 2 22 0 0% 0 0 0.827861
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.723583
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.911695
setivar (click) 2652 3389 3 31 0 0% 0 0 1.025751
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.14305
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.285431
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.033025
throw (click) 5848 4291 5 46 0 0% 0 0 1.614084

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.