YJIT Benchmarks

Details for Benchmarks at 2025-03-12 03:46:20 UTC

YJIT metrics from the yjit-bench suite using Ruby c68088038f.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 88.8% faster than CRuby 3.5.0dev
  • 7.0% faster than YJIT 3.3.6
On railsbench it is
  • 103.2% faster than CRuby 3.5.0dev
  • 5.5% faster than YJIT 3.3.6
x86_64 runtime: 4 hours, 19 minutes
aarch64 runtime: 3 hours, 42 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 83 50 157 50 165
chunky-png 5 32 5 34 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 5 433 50 567 50 643
liquid-compile 5 409 5 436 50 541 50 603
liquid-render 5 170 5 176 50 405 50 432
lobsters 5 19 5 19 50 10 50 10
mail 5 189 5 196 50 251 50 249
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 156 5 159 50 251 50 268
ruby-lsp 5 158 5 163 50 248 50 266
sequel 5 433 5 413 50 601 50 592
binarytrees 5 84 5 86 50 149 50 141
blurhash 5 82 5 86 50 127 50 145
erubi 5 125 5 149 50 98 50 120
etanni 5 90 5 103 50 54 50 74
fannkuchredux 5 52 5 57 50 99 50 108
fluentd 5 64 5 65 50 25 50 31
graphql 5 85 5 88 50 56 50 60
graphql-native 5 40 5 53 50 10 50 14
lee 5 22 5 23 50 10 50 10
matmul 5 51 5 54 50 85 50 96
nbody 5 248 5 285 50 577 50 637
nqueens 5 120 5 127 50 75 50 559
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 175 5 188 50 620 50 728
protoboeuf-encode 5 180 5 205 50 328 50 802
rack 5 583 5 628 50 952 50 1071
ruby-json 5 84 5 84 50 49 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 50 161
tinygql 5 36 5 38 50 22 50 29
30k_ifelse 5 28 5 28 50 214 50 207
30k_methods 5 39 5 38 50 482 50 468
cfunc_itself 5 346 5 356 50 1147 50 1258
fib 5 125 5 148 50 910 50 933
getivar 5 207 5 310 50 2242 50 2754
keyword_args 5 107 5 109 50 1042 50 1244
loops-times 5 24 5 27 50 48 50 65
object-new 5 323 5 327 50 405 50 382
respond_to 5 134 5 138 50 3258 50 3980
ruby-xor 5 241 5 256 50 802 50 1381
setivar 5 358 5 655 50 3193 50 5939
setivar_object 5 355 5 480 50 698 50 815
setivar_young 5 364 5 480 50 746 50 816
str_concat 5 397 5 485 50 969 50 1210
throw 5 1265 5 1274 50 1776 50 1696

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) 1450768 1268474 209 2204 0 0% 0 0 64.148063
chunky-png (click) 297930 229507 84 1124 1 0% 0 0 33.315415
erubi-rails (click) 1899409 1622362 259 2946 19 0% 0 0 80.845111
hexapdf (click) 1464886 1275573 595 13143 41 0% 0 0 376.243081
liquid-c (click) 469672 375575 114 1743 5 0% 0 0 48.651449
liquid-compile (click) 400251 317922 146 2081 2 0% 0 0 64.636087
liquid-render (click) 607017 505433 131 2309 8 0% 0 0 64.965457
lobsters (click) 8134557 6841076 3160 52711 104 0% 0 0 1803.807137
mail (click) 762539 712818 342 5318 14 0% 0 0 158.006682
psych-load (click) 272350 214977 61 615 3 0% 0 0 19.137807
railsbench (click) 3242374 2745541 1645 16194 52 0% 0 0 468.148607
rubocop (click) 5662182 4900307 2887 50573 110 0% 4 0 1578.087563
ruby-lsp (click) 811361 739905 305 4735 24 0% 0 0 134.361579
sequel (click) 448356 384231 11 94 0 0% 0 0 3.317139
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.28148
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.213791
erubi (click) 213000 171854 5 97 0 0% 0 0 3.217094
etanni (click) 27173 26329 8 88 0 0% 0 0 2.996138
fannkuchredux (click) 23046 13626 3 249 0 0% 0 0 7.329286
fluentd (click) 381125 328937 7 93 0 0% 0 0 3.206358
graphql (click) 396442 339135 66 676 0 0% 0 0 21.146603
graphql-native (click) 358237 306812 37 255 0 0% 0 0 8.575286
lee (click) 298756 269084 45 750 0 0% 0 0 23.521335
matmul (click) 10657 3512 8 109 0 0% 0 0 3.559013
nbody (click) 13065 17086 6 172 0 0% 0 0 4.416957
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.850952
optcarrot (click) 319096 242804 188 4399 34 0% 0 0 101.613301
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.569391
protoboeuf-encode (click) 221107 212146 14 1220 0 0% 0 0 31.135346
rack (click) 242865 191133 32 385 0 0% 0 0 9.863366
ruby-json (click) 23859 20840 8 178 0 0% 0 0 5.063844
rubyboy (click) 685662 591569 177 5803 40 0% 0 0 143.256465
rubykon (click) 134065 128972 137 1489 3 0% 0 0 43.024567
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.492262
tinygql (click) 281694 248526 58 762 5 0% 0 0 21.744619
30k_ifelse (click) 5658804 5284852 9259 51668 0 0% 0 0 1408.454053
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 451.221902
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.335633
fib (click) 2599 2861 3 26 0 0% 0 0 0.967127
getivar (click) 3501 4713 3 51 0 0% 0 0 1.362803
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.579794
loops-times (click) 6703 7405 5 71 0 0% 0 0 2.371253
object-new (click) 1933 2093 2 22 0 0% 0 0 0.870717
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.734259
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.929987
setivar (click) 2652 3389 3 31 0 0% 0 0 0.972055
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.146129
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.323177
str_concat (click) 5469 6016 6 62 0 0% 0 0 1.99043
throw (click) 5848 4291 5 46 0 0% 0 0 1.617817

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.