YJIT Benchmarks

Details for Benchmarks at 2025-03-19 03:47:18 UTC

YJIT metrics from the yjit-bench suite using Ruby e391c33734.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 88.6% faster than CRuby 3.5.0dev
  • 6.5% faster than YJIT 3.3.6
On railsbench it is
  • 100.2% faster than CRuby 3.5.0dev
  • 5.1% 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 86 50 158 50 166
chunky-png 5 32 5 34 50 16 50 34
erubi-rails 5 16 5 16 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 408 5 433 50 589 50 644
liquid-compile 5 411 5 419 50 540 50 567
liquid-render 5 171 5 174 50 404 50 448
lobsters 5 20 5 20 50 10 50 10
mail 5 196 5 196 50 252 50 249
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 155 5 158 50 253 50 269
ruby-lsp 5 156 5 159 50 249 50 263
sequel 5 430 5 425 50 601 50 581
binarytrees 5 84 5 86 50 149 50 142
blurhash 5 82 5 88 50 127 50 145
erubi 5 126 5 135 50 99 50 126
etanni 5 90 5 102 50 54 50 73
fannkuchredux 5 52 5 58 50 99 50 106
fluentd 5 64 5 64 50 25 50 25
graphql 5 85 5 85 50 57 50 61
graphql-native 5 40 5 52 50 10 50 14
lee 5 22 5 23 50 10 50 10
matmul 5 50 5 50 50 85 50 96
nbody 5 248 5 280 50 578 50 641
nqueens 5 120 5 127 50 75 50 562
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 174 5 184 50 620 50 735
protoboeuf-encode 5 180 5 199 50 329 50 821
rack 5 586 5 621 50 946 50 1066
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 39 50 23 50 29
30k_ifelse 5 28 5 28 50 215 50 207
30k_methods 5 40 5 38 50 481 50 476
cfunc_itself 5 347 5 361 50 1147 50 1258
fib 5 127 5 148 50 910 50 933
getivar 5 207 5 319 50 2244 50 2765
keyword_args 5 107 5 112 50 1042 50 1243
loops-times 5 24 5 27 50 48 50 65
object-new 5 323 5 327 50 405 50 385
respond_to 5 134 5 132 50 3258 50 3980
ruby-xor 5 232 5 261 50 803 50 1381
setivar 5 358 5 654 50 3194 50 5937
setivar_object 5 355 5 478 50 697 50 753
setivar_young 5 365 5 478 50 743 50 804
str_concat 5 401 5 476 50 969 50 1223
throw 5 1265 5 1291 50 1783 50 1719

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) 1430805 1201993 209 2204 0 0% 0 0 64.611224
chunky-png (click) 326232 246845 84 1124 1 0% 0 0 32.997452
erubi-rails (click) 1915583 1662850 260 2984 19 0% 0 0 81.63192
hexapdf (click) 1465961 1244879 595 13142 42 0% 0 0 376.006257
liquid-c (click) 507070 456459 114 1743 5 0% 0 0 48.586517
liquid-compile (click) 408980 342564 146 2084 2 0% 0 0 64.12795
liquid-render (click) 579317 513821 131 2309 8 0% 0 0 65.805997
lobsters (click) 8144490 6868801 3159 52783 104 0% 0 0 1798.922643
mail (click) 762485 713826 342 5318 14 0% 0 0 153.639936
psych-load (click) 277577 268820 61 615 3 0% 0 0 19.133227
railsbench (click) 3242569 2746602 1645 16197 52 0% 0 0 495.622787
rubocop (click) 5667059 4796395 2887 50554 110 0% 4 0 1491.245799
ruby-lsp (click) 846129 781975 305 4734 24 0% 0 0 134.147033
sequel (click) 479629 404391 11 94 0 0% 0 0 3.299095
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.271128
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.200583
erubi (click) 222857 178076 5 97 0 0% 0 0 3.181173
etanni (click) 27173 26329 8 88 0 0% 0 0 2.988069
fannkuchredux (click) 23046 13626 3 249 0 0% 0 0 7.388189
fluentd (click) 393447 331364 7 93 0 0% 0 0 3.189369
graphql (click) 426148 399208 66 676 0 0% 0 0 21.240749
graphql-native (click) 365160 328182 37 255 0 0% 0 0 8.66774
lee (click) 288145 261138 45 750 0 0% 0 0 23.52123
matmul (click) 10657 3512 8 109 0 0% 0 0 3.560693
nbody (click) 13065 17086 6 172 0 0% 0 0 4.427569
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.874139
optcarrot (click) 319096 242804 188 4399 34 0% 0 0 102.13719
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.072583
protoboeuf-encode (click) 221107 212146 14 1220 0 0% 0 0 31.293821
rack (click) 242958 214966 32 385 0 0% 0 0 10.26891
ruby-json (click) 23776 20702 8 181 0 0% 0 0 5.202902
rubyboy (click) 656425 615266 177 5803 40 0% 0 0 146.714984
rubykon (click) 133546 111856 137 1482 3 0% 0 0 42.591887
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.564454
tinygql (click) 299202 263066 58 762 5 0% 0 0 21.902778
30k_ifelse (click) 5658804 5284852 9259 51668 0 0% 0 0 1417.385981
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 454.835194
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.348877
fib (click) 2599 2861 3 26 0 0% 0 0 0.960014
getivar (click) 3501 4713 3 51 0 0% 0 0 1.297217
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.570395
loops-times (click) 6703 7405 5 71 0 0% 0 0 2.310183
object-new (click) 1933 2093 2 22 0 0% 0 0 0.815325
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.758542
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.898523
setivar (click) 2652 3389 3 31 0 0% 0 0 0.971939
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.115296
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.317663
str_concat (click) 5469 6016 6 62 0 0% 0 0 1.977739
throw (click) 5848 4291 5 46 0 0% 0 0 1.619957

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.