YJIT Benchmarks

Details for Benchmarks at 2025-04-12 03:47:16 UTC

YJIT metrics from the yjit-bench suite using Ruby 3628e9e30d.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 88.6% faster than CRuby 3.5.0dev
  • 8.6% faster than YJIT 3.3.6
On railsbench it is
  • 105.7% faster than CRuby 3.5.0dev
  • 7.7% 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 50 158 50 159
chunky-png 5 31 5 35 50 16 50 34
erubi-rails 5 16 5 15 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 421 5 430 50 565 50 641
liquid-compile 5 408 5 459 50 577 50 685
liquid-render 5 171 5 171 50 405 50 425
lobsters 5 19 5 19 50 10 50 10
mail 5 195 5 196 50 250 50 252
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 5 154 5 164 50 205 50 269
sequel 5 434 5 423 50 571 50 585
binarytrees 5 84 5 84 50 149 50 136
blurhash 5 82 5 88 50 127 50 145
erubi 5 124 5 145 50 87 50 147
etanni 5 90 5 100 50 54 50 71
fannkuchredux 5 52 5 57 50 99 50 107
fluentd 5 64 5 63 50 26 50 28
graphql 5 85 5 87 50 57 50 60
graphql-native 5 48 5 52 50 10 50 15
lee 5 23 5 26 50 10 50 10
matmul 5 51 5 51 50 85 50 93
nbody 5 248 5 253 50 578 50 704
nqueens 5 120 5 127 50 75 50 564
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 174 5 187 50 620 50 714
protoboeuf-encode 5 180 5 208 50 329 50 824
rack 5 571 5 635 50 949 50 1042
ruby-json 5 84 5 84 50 50 50 50
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 36 50 22 50 28
30k_ifelse 5 28 5 27 50 214 50 206
30k_methods 5 39 5 38 50 483 50 472
cfunc_itself 5 346 5 359 50 1147 50 1258
fib 5 127 5 143 50 910 50 933
getivar 5 207 5 332 50 2239 50 2768
keyword_args 5 106 5 108 50 1042 50 1243
loops-times 5 24 5 28 50 48 50 65
object-new 5 322 5 328 50 404 50 390
respond_to 5 133 5 142 50 3258 50 3983
ruby-xor 5 241 5 259 50 803 50 1373
setivar 5 358 5 611 50 3190 50 5916
setivar_object 5 355 5 481 50 698 50 813
setivar_young 5 365 5 482 50 755 50 819
str_concat 5 398 5 461 50 968 50 1227
throw 5 1263 5 1287 50 1786 50 1701

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) 1422071 1187931 209 2202 0 0% 0 0 64.016643
chunky-png (click) 298516 247513 84 1124 1 0% 0 0 33.314732
erubi-rails (click) 1904654 1654493 259 2981 19 0% 0 0 83.069607
hexapdf (click) 1466015 1327118 595 13143 41 0% 0 0 379.37434
liquid-c (click) 503595 429387 115 1744 5 0% 0 0 49.711848
liquid-compile (click) 423183 356272 146 2077 2 0% 0 0 66.332902
liquid-render (click) 583577 478160 132 2310 8 0% 0 0 65.254036
lobsters (click) 8148992 6869530 3160 52952 104 0% 0 0 1820.594095
mail (click) 762207 705444 342 5317 14 0% 0 0 154.269314
psych-load (click) 250276 195751 61 615 3 0% 0 0 19.250749
railsbench (click) 3240256 2804101 1645 16269 52 0% 0 0 482.757147
rubocop (click) 5668128 4799252 2887 50541 110 0% 4 0 1476.602163
ruby-lsp (click) 845917 765876 305 4731 24 0% 0 0 134.864715
sequel (click) 477896 427757 11 94 0 0% 0 0 3.719779
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.330457
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.16131
erubi (click) 222076 197729 5 97 0 0% 0 0 3.227288
etanni (click) 30101 29597 8 88 0 0% 0 0 3.004279
fannkuchredux (click) 23031 13626 3 249 0 0% 0 0 7.386073
fluentd (click) 388364 327997 7 93 0 0% 0 0 3.23172
graphql (click) 426291 342195 66 676 0 0% 0 0 21.026769
graphql-native (click) 356525 315301 37 255 0 0% 0 0 8.523652
lee (click) 294414 217456 45 749 0 0% 0 0 23.733413
matmul (click) 10657 3512 8 109 0 0% 0 0 3.563796
nbody (click) 13050 17086 6 172 0 0% 0 0 4.442141
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.88037
optcarrot (click) 318856 234467 188 4395 34 0% 0 0 101.474456
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.133831
protoboeuf-encode (click) 221062 212146 14 1220 0 0% 0 0 31.471965
rack (click) 262435 216411 32 385 0 0% 0 0 10.423717
ruby-json (click) 23859 20840 8 178 0 0% 0 0 5.038047
rubyboy (click) 662460 581027 177 5803 40 0% 0 0 144.429641
rubykon (click) 133501 111856 137 1482 3 0% 0 0 42.675832
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.612617
tinygql (click) 293769 251670 58 762 5 0% 0 0 21.691267
30k_ifelse (click) 5658774 5284843 9259 51667 0 0% 0 0 1417.378853
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 455.091276
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.337385
fib (click) 2599 2861 3 26 0 0% 0 0 0.977451
getivar (click) 3501 4713 3 51 0 0% 0 0 1.326143
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.601675
loops-times (click) 6688 7405 5 70 0 0% 0 0 2.324386
object-new (click) 1918 2093 2 22 0 0% 0 0 0.849855
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.735376
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.891587
setivar (click) 2652 3389 3 31 0 0% 0 0 1.005934
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.103622
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.331135
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.007975
throw (click) 5848 4291 5 46 0 0% 0 0 1.623952

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.