YJIT Benchmarks

Details for Benchmarks at 2025-03-18 03:47:23 UTC

YJIT metrics from the yjit-bench suite using Ruby 9b49ba5a68.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 86.7% faster than CRuby 3.5.0dev
  • 7.1% faster than YJIT 3.3.6
On railsbench it is
  • 94.5% faster than CRuby 3.5.0dev
  • 5.5% faster than YJIT 3.3.6
x86_64 runtime: 4 hours, 19 minutes
aarch64 runtime: 3 hours, 43 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.

Want Raw Graphs and CSV?

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 85 50 158 50 165
chunky-png 5 32 5 34 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 5 411 5 435 50 568 50 639
liquid-compile 5 407 5 430 50 542 50 565
liquid-render 5 170 5 173 50 405 50 447
lobsters 5 20 5 19 50 10 50 10
mail 5 190 5 198 50 241 50 253
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 157 5 156 50 253 50 264
ruby-lsp 5 154 5 158 50 244 50 253
sequel 5 419 5 422 50 577 50 584
binarytrees 5 84 5 86 50 149 50 142
blurhash 5 82 5 88 50 127 50 145
erubi 5 124 5 146 50 88 50 139
etanni 5 90 5 102 50 54 50 72
fannkuchredux 5 52 5 54 50 96 50 101
fluentd 5 64 5 58 50 25 50 31
graphql 5 85 5 84 50 56 50 59
graphql-native 5 40 5 53 50 11 50 14
lee 5 22 5 23 50 10 50 10
matmul 5 51 5 51 50 85 50 96
nbody 5 248 5 277 50 578 50 707
nqueens 5 120 5 128 50 75 50 566
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 174 5 189 50 620 50 714
protoboeuf-encode 5 176 5 210 50 329 50 802
rack 5 586 5 636 50 944 50 1048
ruby-json 5 84 5 85 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 50 50 164 50 162
tinygql 5 35 5 38 50 23 50 28
30k_ifelse 5 28 5 28 50 214 50 206
30k_methods 5 38 5 38 50 482 50 476
cfunc_itself 5 345 5 366 50 1147 50 1258
fib 5 127 5 149 50 910 50 933
getivar 5 207 5 333 50 2241 50 2765
keyword_args 5 107 5 107 50 1042 50 1243
loops-times 5 24 5 28 50 48 50 65
object-new 5 322 5 327 50 404 50 380
respond_to 5 134 5 137 50 3258 50 3976
ruby-xor 5 241 5 265 50 803 50 1382
setivar 5 358 5 656 50 3190 50 5933
setivar_object 5 354 5 482 50 699 50 748
setivar_young 5 365 5 481 50 743 50 806
str_concat 5 398 5 481 50 970 50 1219
throw 5 1264 5 1286 50 1771 50 1702

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) 1448923 1194426 209 2204 0 0% 0 0 64.11016
chunky-png (click) 323985 294245 84 1124 1 0% 0 0 33.499481
erubi-rails (click) 1908550 1632995 260 3002 19 0% 0 0 84.754802
hexapdf (click) 1466962 1269609 595 13144 41 0% 0 0 380.544964
liquid-c (click) 491269 435882 114 1743 5 0% 0 0 48.778911
liquid-compile (click) 396610 331444 146 2075 2 0% 0 0 64.603866
liquid-render (click) 579212 530221 131 2309 8 0% 0 0 65.969147
lobsters (click) 8167488 6820147 3159 52868 105 0% 0 0 1796.644156
mail (click) 729937 677520 342 5318 14 0% 0 0 156.32732
psych-load (click) 281664 264695 61 617 3 0% 0 0 19.32894
railsbench (click) 3244737 2838635 1645 16211 52 0% 0 0 471.008596
rubocop (click) 5675895 4839827 2887 50553 110 0% 4 0 1496.268453
ruby-lsp (click) 848271 751568 305 4735 24 0% 0 0 134.149431
sequel (click) 482677 414532 11 94 0 0% 0 0 3.30823
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.270079
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.219894
erubi (click) 253990 231832 5 97 0 0% 0 0 3.252994
etanni (click) 27173 26329 8 88 0 0% 0 0 2.992247
fannkuchredux (click) 23046 13626 3 249 0 0% 0 0 7.343257
fluentd (click) 389938 336772 7 93 0 0% 0 0 3.176272
graphql (click) 393701 312790 66 676 0 0% 0 0 21.098371
graphql-native (click) 380273 351510 37 255 0 0% 0 0 8.784216
lee (click) 303801 257560 45 750 0 0% 0 0 23.71769
matmul (click) 10657 3512 8 109 0 0% 0 0 3.569314
nbody (click) 13065 17086 6 172 0 0% 0 0 4.421529
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.848255
optcarrot (click) 319096 242804 188 4399 34 0% 0 0 101.133826
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.574173
protoboeuf-encode (click) 221107 212146 14 1220 0 0% 0 0 31.265051
rack (click) 263936 225888 32 385 0 0% 0 0 10.36831
ruby-json (click) 19367 16755 8 178 0 0% 0 0 5.069939
rubyboy (click) 675815 617139 177 5803 40 0% 0 0 145.478605
rubykon (click) 133546 111856 137 1482 3 0% 0 0 42.532218
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.530558
tinygql (click) 284028 259003 58 762 5 0% 0 0 21.883481
30k_ifelse (click) 5658804 5284852 9259 51668 0 0% 0 0 1427.926581
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 456.655328
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.347506
fib (click) 2599 2861 3 26 0 0% 0 0 0.986543
getivar (click) 3501 4713 3 51 0 0% 0 0 1.317791
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.623092
loops-times (click) 6703 7405 5 71 0 0% 0 0 2.299747
object-new (click) 1933 2093 2 22 0 0% 0 0 0.848747
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.715484
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.933894
setivar (click) 2652 3389 3 31 0 0% 0 0 1.001057
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.122976
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.318444
str_concat (click) 5469 6016 6 62 0 0% 0 0 1.979827
throw (click) 5848 4291 5 46 0 0% 0 0 1.622039

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.