YJIT Benchmarks

Details for Benchmarks at 2025-03-02 03:45:40 UTC

YJIT metrics from the yjit-bench suite using Ruby db4ea95219.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 88.8% faster than CRuby 3.5.0dev
  • 5.6% faster than YJIT 3.3.6
On railsbench it is
  • 102.3% faster than CRuby 3.5.0dev
  • 5.9% faster than YJIT 3.3.6
x86_64 runtime: 4 hours, 20 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 83 50 157 50 166
chunky-png 5 32 5 33 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 5 435 50 590 50 605
liquid-compile 5 408 5 433 50 547 50 595
liquid-render 5 168 5 174 50 403 50 436
lobsters 5 20 5 19 50 10 50 10
mail 5 196 5 197 50 238 50 248
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 156 5 158 50 248 50 268
ruby-lsp 5 161 5 159 50 258 50 276
sequel 5 434 5 414 50 601 50 590
binarytrees 5 84 5 86 50 149 50 140
blurhash 5 82 5 87 50 127 50 145
erubi 5 75 5 135 50 98 50 40
etanni 5 90 5 101 50 54 50 71
fannkuchredux 5 52 5 58 50 100 50 110
fluentd 5 63 5 66 50 25 50 33
graphql 5 85 5 86 50 57 50 60
graphql-native 5 40 5 53 50 10 50 15
lee 5 23 5 23 50 10 50 10
matmul 5 51 5 53 50 85 50 96
nbody 5 248 5 288 50 576 50 707
nqueens 5 120 5 126 50 75 50 566
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 175 5 189 50 619 50 719
protoboeuf-encode 5 180 5 210 50 329 50 819
rack 5 581 5 648 50 946 50 1076
ruby-json 5 84 5 85 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 50 160
tinygql 5 36 5 37 50 23 50 30
30k_ifelse 5 28 5 28 50 215 50 207
30k_methods 5 38 5 38 50 482 50 476
cfunc_itself 5 346 5 324 50 1147 50 1258
fib 5 127 5 147 50 909 50 933
getivar 5 207 5 336 50 2242 50 2766
keyword_args 5 107 5 110 50 1042 50 1244
loops-times 5 24 5 27 50 48 50 65
object-new 5 322 5 327 50 405 50 383
respond_to 5 133 5 142 50 3257 50 3984
ruby-xor 5 224 5 242 50 803 50 1382
setivar 5 358 5 653 50 3187 50 5930
setivar_object 5 355 5 478 50 699 50 819
setivar_young 5 365 5 480 50 744 50 815
str_concat 5 401 5 458 50 969 50 1203
throw 5 1264 5 1278 50 1779 50 1717

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) 1420329 1186545 209 2204 0 0% 0 0 64.010202
chunky-png (click) 301753 242896 84 1124 1 0% 0 0 33.148778
erubi-rails (click) 1927644 1574561 260 2990 19 0% 0 0 81.581993
hexapdf (click) 1465300 1275604 595 13139 41 0% 0 0 375.379632
liquid-c (click) 478871 398136 114 1743 5 0% 0 0 49.104169
liquid-compile (click) 400889 326240 146 2083 2 0% 0 0 65.07504
liquid-render (click) 606795 537510 131 2309 8 0% 0 0 64.323339
lobsters (click) 8129491 6866429 3157 52613 104 0% 0 0 1784.645397
mail (click) 730436 669198 342 5318 14 0% 0 0 153.629484
psych-load (click) 264806 240798 61 617 3 0% 0 0 18.979146
railsbench (click) 3260343 2761007 1645 16221 52 0% 0 0 493.965149
rubocop (click) 5670361 4824548 2887 50560 110 0% 4 0 1471.373363
ruby-lsp (click) 824382 713807 305 4730 24 0% 0 0 133.136945
sequel (click) 459653 394729 11 94 0 0% 0 0 3.333802
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.223735
blurhash (click) 50118 50863 27 438 0 0% 0 0 13.972335
erubi (click) 225600 213295 5 97 0 0% 0 0 3.147242
etanni (click) 27173 26329 8 88 0 0% 0 0 2.984564
fannkuchredux (click) 23046 13626 3 249 0 0% 0 0 7.2965
fluentd (click) 363155 314552 7 93 0 0% 0 0 3.186888
graphql (click) 397333 363634 66 676 0 0% 0 0 20.89683
graphql-native (click) 391396 367281 37 255 0 0% 0 0 8.598894
lee (click) 276704 258644 45 750 0 0% 0 0 23.15161
matmul (click) 10657 3512 8 109 0 0% 0 0 3.522301
nbody (click) 13065 17086 6 172 0 0% 0 0 4.375012
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.803587
optcarrot (click) 319096 242804 188 4399 34 0% 0 0 102.549585
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.231942
protoboeuf-encode (click) 221107 212146 14 1220 0 0% 0 0 31.007515
rack (click) 262290 206700 32 385 0 0% 0 0 10.123889
ruby-json (click) 23441 20329 9 184 0 0% 0 0 5.244142
rubyboy (click) 658373 625124 177 5803 40 0% 0 0 146.153651
rubykon (click) 133546 111856 137 1482 3 0% 0 0 41.846519
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.458326
tinygql (click) 274723 250804 58 762 5 0% 0 0 21.425389
30k_ifelse (click) 5658804 5284852 9259 51668 0 0% 0 0 1404.004059
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 451.559024
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.310171
fib (click) 2599 2861 3 26 0 0% 0 0 0.959094
getivar (click) 3501 4713 3 51 0 0% 0 0 1.333875
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.585766
loops-times (click) 6703 7405 5 71 0 0% 0 0 2.252613
object-new (click) 1933 2093 2 22 0 0% 0 0 0.801495
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.716207
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.891496
setivar (click) 2652 3389 3 31 0 0% 0 0 0.967687
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.106289
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.326234
str_concat (click) 5469 6016 6 62 0 0% 0 0 1.997867
throw (click) 5848 4291 5 46 0 0% 0 0 1.571584

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.