YJIT Benchmarks

Details for Benchmarks at 2025-03-15 03:46:39 UTC

YJIT metrics from the yjit-bench suite using Ruby efb2d43637.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 85.0% faster than CRuby 3.5.0dev
  • 6.1% faster than YJIT 3.3.6
On railsbench it is
  • 103.7% faster than CRuby 3.5.0dev
  • 7.2% 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 84 50 156 50 160
chunky-png 5 31 5 35 50 15 50 34
erubi-rails 5 15 5 16 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 421 5 437 50 568 50 636
liquid-compile 5 412 5 431 50 544 50 569
liquid-render 5 170 5 174 50 404 50 447
lobsters 5 20 5 19 50 10 50 10
mail 5 190 5 197 50 251 50 255
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 157 5 157 50 250 50 267
ruby-lsp 5 161 5 160 50 217 50 207
sequel 5 418 5 425 50 601 50 587
binarytrees 5 84 5 86 50 149 50 142
blurhash 5 82 5 87 50 127 50 145
erubi 5 118 5 146 50 52 50 140
etanni 5 90 5 101 50 54 50 72
fannkuchredux 5 52 5 54 50 99 50 100
fluentd 5 63 5 66 50 26 50 31
graphql 5 85 5 85 50 57 50 59
graphql-native 5 48 5 52 50 10 50 13
lee 5 22 5 23 50 10 50 10
matmul 5 50 5 51 50 85 50 97
nbody 5 248 5 276 50 577 50 682
nqueens 5 120 5 128 50 75 50 555
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 175 5 189 50 620 50 732
protoboeuf-encode 5 180 5 208 50 327 50 814
rack 5 587 5 623 50 946 50 1048
ruby-json 5 84 5 85 50 49 50 51
rubyboy 5 10 5 10 50 10 50 10
rubykon 5 20 5 22 50 10 50 10
sudoku 5 48 5 50 50 164 50 161
tinygql 5 36 5 38 50 22 50 29
30k_ifelse 5 28 5 28 50 215 50 207
30k_methods 5 38 5 39 50 482 50 476
cfunc_itself 5 345 5 355 50 1147 50 1258
fib 5 127 5 146 50 910 50 933
getivar 5 207 5 298 50 2239 50 2743
keyword_args 5 107 5 106 50 1042 50 1243
loops-times 5 24 5 28 50 48 50 65
object-new 5 323 5 326 50 406 50 380
respond_to 5 133 5 138 50 3258 50 3984
ruby-xor 5 240 5 259 50 803 50 1383
setivar 5 358 5 646 50 3195 50 5931
setivar_object 5 354 5 469 50 699 50 745
setivar_young 5 364 5 469 50 743 50 803
str_concat 5 398 5 433 50 969 50 1211
throw 5 1263 5 1297 50 1780 50 1724

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) 1452466 1245525 209 2204 0 0% 0 0 64.143916
chunky-png (click) 323320 284643 84 1124 1 0% 0 0 32.738147
erubi-rails (click) 1924355 1652176 259 2995 19 0% 0 0 88.255042
hexapdf (click) 1444070 1289828 595 13143 41 0% 0 0 381.446021
liquid-c (click) 503581 411729 114 1743 5 0% 0 0 48.119913
liquid-compile (click) 395799 340801 146 2085 2 0% 0 0 65.350674
liquid-render (click) 607424 530402 131 2309 8 0% 0 0 65.545088
lobsters (click) 8133791 6827145 3160 52809 104 0% 0 0 1809.213468
mail (click) 760623 612727 342 5318 14 0% 0 0 153.690151
psych-load (click) 253716 238957 61 617 3 0% 0 0 19.387532
railsbench (click) 3224305 2739051 1645 16192 52 0% 0 0 467.500328
rubocop (click) 5667316 4927662 2887 50553 110 0% 4 0 1500.703799
ruby-lsp (click) 811361 748097 305 4735 24 0% 0 0 134.206272
sequel (click) 451895 395996 11 94 0 0% 0 0 3.421919
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.264441
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.161577
erubi (click) 252346 212530 5 97 0 0% 0 0 3.271065
etanni (click) 27173 26329 8 88 0 0% 0 0 2.997835
fannkuchredux (click) 23046 13626 3 249 0 0% 0 0 7.321046
fluentd (click) 358537 293134 7 93 0 0% 0 0 3.250815
graphql (click) 425791 389357 66 676 0 0% 0 0 20.932404
graphql-native (click) 392557 344473 37 255 0 0% 0 0 8.609824
lee (click) 271911 244838 45 750 0 0% 0 0 23.820259
matmul (click) 10657 3512 8 109 0 0% 0 0 3.54917
nbody (click) 13065 17086 6 172 0 0% 0 0 4.395058
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.831638
optcarrot (click) 319096 242804 188 4399 34 0% 0 0 101.301359
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.303146
protoboeuf-encode (click) 221107 212146 14 1220 0 0% 0 0 31.301974
rack (click) 240613 204250 32 385 0 0% 0 0 10.060281
ruby-json (click) 23776 20702 8 181 0 0% 0 0 5.202537
rubyboy (click) 651869 629883 177 5803 40 0% 0 0 145.354913
rubykon (click) 134065 128972 137 1489 3 0% 0 0 43.228609
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.514589
tinygql (click) 295878 267710 58 762 5 0% 0 0 21.428037
30k_ifelse (click) 5658804 5284852 9259 51668 0 0% 0 0 1419.456131
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 452.92998
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.337223
fib (click) 2599 2861 3 26 0 0% 0 0 0.978597
getivar (click) 3501 4713 3 51 0 0% 0 0 1.328393
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.599441
loops-times (click) 6703 7405 5 71 0 0% 0 0 2.298833
object-new (click) 1933 2093 2 22 0 0% 0 0 0.822255
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.728998
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.910791
setivar (click) 2652 3389 3 31 0 0% 0 0 0.996196
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.127294
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.306327
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.053402
throw (click) 5848 4291 5 46 0 0% 0 0 1.607735

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.