YJIT Benchmarks

Details for Benchmarks at 2025-03-06 03:46:17 UTC

YJIT metrics from the yjit-bench suite using Ruby c939d0c85d.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 88.8% faster than CRuby 3.5.0dev
  • 6.9% faster than YJIT 3.3.6
On railsbench it is
  • 106.7% faster than CRuby 3.5.0dev
  • 6.4% 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 85 50 157 50 164
chunky-png 5 32 5 34 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 5 421 5 425 50 590 50 617
liquid-compile 5 409 5 416 50 540 50 592
liquid-render 5 172 5 175 50 404 50 438
lobsters 5 20 5 19 50 10 50 10
mail 5 195 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 50 247 50 268
ruby-lsp 5 146 5 165 50 232 50 276
sequel 5 433 5 422 50 601 50 584
binarytrees 5 84 5 86 50 149 50 141
blurhash 5 82 5 88 50 127 50 145
erubi 5 124 5 146 50 90 50 150
etanni 5 90 5 101 50 54 50 73
fannkuchredux 5 52 5 57 50 99 50 109
fluentd 5 63 5 60 50 24 50 33
graphql 5 85 5 84 50 56 50 58
graphql-native 5 39 5 53 50 11 50 14
lee 5 22 5 23 50 10 50 10
matmul 5 51 5 54 50 85 50 97
nbody 5 248 5 288 50 577 50 705
nqueens 5 120 5 128 50 69 50 565
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 174 5 189 50 618 50 731
protoboeuf-encode 5 180 5 213 50 328 50 796
rack 5 579 5 649 50 948 50 1066
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 50 161
tinygql 5 36 5 39 50 23 50 28
30k_ifelse 5 28 5 28 50 214 50 204
30k_methods 5 38 5 38 50 484 50 476
cfunc_itself 5 346 5 361 50 1147 50 1258
fib 5 127 5 151 50 909 50 932
getivar 5 207 5 327 50 2239 50 2770
keyword_args 5 107 5 109 50 1042 50 1244
loops-times 5 24 5 27 50 48 50 65
object-new 5 323 5 328 50 405 50 388
respond_to 5 133 5 138 50 3258 50 3985
ruby-xor 5 242 5 256 50 803 50 1382
setivar 5 364 5 654 50 3190 50 5936
setivar_object 5 355 5 480 50 699 50 818
setivar_young 5 365 5 480 50 741 50 815
str_concat 5 399 5 462 50 967 50 1209
throw 5 1265 5 1289 50 1778 50 1727

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) 1421439 1186994 209 2204 0 0% 0 0 63.696328
chunky-png (click) 287486 238875 84 1124 1 0% 0 0 33.133569
erubi-rails (click) 1929421 1657445 259 2976 19 0% 0 0 87.33937
hexapdf (click) 1445683 1309173 596 13156 36 0% 0 0 376.061824
liquid-c (click) 482526 394755 114 1743 5 0% 0 0 48.753165
liquid-compile (click) 429224 359744 146 2081 2 0% 0 0 64.712358
liquid-render (click) 585747 471869 131 2309 8 0% 0 0 64.118416
lobsters (click) 8137084 6793808 3159 52789 105 0% 0 0 1789.350511
mail (click) 739416 651882 342 5318 14 0% 0 0 154.169181
psych-load (click) 248082 225157 61 617 3 0% 0 0 19.285933
railsbench (click) 3228097 2813960 1645 16193 52 0% 0 0 463.684491
rubocop (click) 5685883 5000254 2887 50508 110 0% 4 0 1571.563331
ruby-lsp (click) 811975 702901 305 4735 24 0% 0 0 132.23357
sequel (click) 453395 414207 11 94 0 0% 0 0 3.541159
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.222231
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.066465
erubi (click) 221741 186977 5 97 0 0% 0 0 3.159361
etanni (click) 27173 26329 8 88 0 0% 0 0 2.962423
fannkuchredux (click) 23046 13626 3 249 0 0% 0 0 7.298443
fluentd (click) 390244 344224 7 93 0 0% 0 0 3.253261
graphql (click) 429513 384835 66 676 0 0% 0 0 20.870451
graphql-native (click) 392132 343733 37 255 0 0% 0 0 8.599931
lee (click) 273566 246376 45 750 0 0% 0 0 23.437498
matmul (click) 10657 3512 8 109 0 0% 0 0 3.521367
nbody (click) 13065 17086 6 172 0 0% 0 0 4.370488
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.863846
optcarrot (click) 319096 242804 188 4399 34 0% 0 0 101.690384
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.108578
protoboeuf-encode (click) 221107 212146 14 1220 0 0% 0 0 31.061532
rack (click) 262697 239849 32 385 0 0% 0 0 10.134499
ruby-json (click) 23859 20840 8 178 0 0% 0 0 5.018725
rubyboy (click) 672068 597463 177 5803 40 0% 0 0 144.417187
rubykon (click) 134065 128972 137 1489 3 0% 0 0 42.538439
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.363166
tinygql (click) 268921 235308 58 762 5 0% 0 0 21.686173
30k_ifelse (click) 5658804 5284852 9259 51668 0 0% 0 0 1412.875291
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 453.26982
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.334343
fib (click) 2599 2861 3 26 0 0% 0 0 0.973146
getivar (click) 3501 4713 3 51 0 0% 0 0 1.329813
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.610275
loops-times (click) 6703 7405 5 71 0 0% 0 0 2.279281
object-new (click) 1933 2093 2 22 0 0% 0 0 0.837454
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.674076
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.899066
setivar (click) 2652 3389 3 31 0 0% 0 0 1.005471
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.12403
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.300144
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.031169
throw (click) 5848 4291 5 46 0 0% 0 0 1.616788

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.