YJIT Benchmarks

Details for Benchmarks at 2025-03-14 03:47:33 UTC

YJIT metrics from the yjit-bench suite using Ruby f5f1951808.

Using the geomean of the headline benchmarks for x86 YJIT 3.5.0dev is
  • 88.0% faster than CRuby 3.5.0dev
  • 6.4% faster than YJIT 3.3.6
On railsbench it is
  • 93.7% faster than CRuby 3.5.0dev
  • 4.0% 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.

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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 50 157 50 164
chunky-png 5 32 5 35 50 16 50 33
erubi-rails 5 16 5 16 50 10 50 10
hexapdf 5 10 5 10 50 10 50 10
liquid-c 5 420 5 433 50 590 50 642
liquid-compile 5 414 5 417 50 539 50 568
liquid-render 5 170 5 175 50 403 50 447
lobsters 5 19 5 19 50 10 50 10
mail 5 195 5 199 50 252 50 253
psych-load 5 10 5 10 50 10 50 10
railsbench 5 10 5 10 50 10 50 10
rubocop 5 157 5 158 50 249 50 267
ruby-lsp 5 162 5 159 50 248 50 248
sequel 5 431 5 425 50 605 50 587
binarytrees 5 82 5 84 50 149 50 142
blurhash 5 82 5 87 50 127 50 145
erubi 5 124 5 148 50 99 50 149
etanni 5 90 5 102 50 54 50 73
fannkuchredux 5 52 5 54 50 99 50 101
fluentd 5 64 5 65 50 26 50 32
graphql 5 85 5 85 50 57 50 60
graphql-native 5 40 5 51 50 10 50 13
lee 5 23 5 23 50 10 50 10
matmul 5 51 5 51 50 85 50 97
nbody 5 248 5 276 50 578 50 681
nqueens 5 116 5 127 50 75 50 556
optcarrot 5 10 5 10 50 10 50 10
protoboeuf 5 169 5 189 50 620 50 732
protoboeuf-encode 5 179 5 209 50 328 50 844
rack 5 581 5 613 50 959 50 1053
ruby-json 5 84 5 85 50 50 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 50 160
tinygql 5 35 5 39 50 23 50 28
30k_ifelse 5 28 5 28 50 215 50 207
30k_methods 5 38 5 37 50 482 50 477
cfunc_itself 5 346 5 355 50 1147 50 1258
fib 5 127 5 145 50 910 50 933
getivar 5 207 5 299 50 2242 50 2743
keyword_args 5 107 5 106 50 1042 50 1243
loops-times 5 24 5 28 50 48 50 65
object-new 5 322 5 326 50 404 50 379
respond_to 5 134 5 137 50 3259 50 3984
ruby-xor 5 242 5 259 50 803 50 1382
setivar 5 357 5 645 50 3191 50 5927
setivar_object 5 349 5 470 50 699 50 745
setivar_young 5 365 5 469 50 756 50 803
str_concat 5 397 5 434 50 970 50 1211
throw 5 1265 5 1299 50 1779 50 1726

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) 1426327 1238663 209 2204 0 0% 0 0 63.963043
chunky-png (click) 296704 244622 84 1124 1 0% 0 0 33.169457
erubi-rails (click) 1925666 1637755 260 2971 19 0% 0 0 87.245377
hexapdf (click) 1439538 1227937 595 13143 41 0% 0 0 380.287891
liquid-c (click) 503128 435327 114 1743 5 0% 0 0 48.978528
liquid-compile (click) 395918 348470 146 2083 2 0% 0 0 64.613051
liquid-render (click) 566016 487656 131 2309 8 0% 0 0 64.610762
lobsters (click) 8124982 6741937 3159 52692 104 0% 0 0 1809.779262
mail (click) 760671 621527 342 5318 14 0% 0 0 157.48019
psych-load (click) 249183 217828 61 617 3 0% 0 0 19.353512
railsbench (click) 3257377 2790987 1645 16193 52 0% 0 0 497.344626
rubocop (click) 5663801 4959153 2887 50557 110 0% 4 0 1491.567023
ruby-lsp (click) 810088 779776 305 4735 24 0% 0 0 135.028568
sequel (click) 445864 382798 11 92 0 0% 0 0 3.445387
binarytrees (click) 7093 6143 6 52 0 0% 0 0 2.270257
blurhash (click) 50118 50863 27 438 0 0% 0 0 14.297507
erubi (click) 226130 181050 5 97 0 0% 0 0 3.203104
etanni (click) 27173 26329 8 88 0 0% 0 0 2.993804
fannkuchredux (click) 23046 13626 3 249 0 0% 0 0 7.39549
fluentd (click) 376067 332441 7 93 0 0% 0 0 3.289636
graphql (click) 425069 405562 66 676 0 0% 0 0 21.144779
graphql-native (click) 363128 301358 37 255 0 0% 0 0 8.717804
lee (click) 272274 228802 45 750 0 0% 0 0 23.729211
matmul (click) 10657 3512 8 109 0 0% 0 0 3.566442
nbody (click) 13065 17086 6 172 0 0% 0 0 4.428129
nqueens (click) 20163 27348 5 239 0 0% 0 0 6.817838
optcarrot (click) 319096 242804 188 4399 34 0% 0 0 102.23681
protoboeuf (click) 150678 129601 12 1479 0 0% 0 0 42.478132
protoboeuf-encode (click) 221107 212146 14 1220 0 0% 0 0 31.22349
rack (click) 232502 212341 32 385 0 0% 0 0 9.990933
ruby-json (click) 19367 16755 8 178 0 0% 0 0 5.049002
rubyboy (click) 650386 593516 177 5803 40 0% 0 0 144.868564
rubykon (click) 134065 128972 137 1489 3 0% 0 0 42.871975
sudoku (click) 45311 40871 7 516 0 0% 0 0 15.49416
tinygql (click) 283823 233089 58 762 5 0% 0 0 21.730631
30k_ifelse (click) 5658804 5284852 9259 51668 0 0% 0 0 1425.711259
30k_methods (click) 2234569 1592883 5778 19351 0 0% 0 0 452.299362
cfunc_itself (click) 5130 4086 4 47 0 0% 0 0 1.340786
fib (click) 2599 2861 3 26 0 0% 0 0 0.973446
getivar (click) 3501 4713 3 51 0 0% 0 0 1.329037
keyword_args (click) 6320 4813 5 49 0 0% 0 0 1.584314
loops-times (click) 6703 7405 5 71 0 0% 0 0 2.313077
object-new (click) 1933 2093 2 22 0 0% 0 0 0.86078
respond_to (click) 5868 6227 4 62 0 0% 0 0 1.717735
ruby-xor (click) 5331 6009 4 64 0 0% 0 0 1.887712
setivar (click) 2652 3389 3 31 0 0% 0 0 0.99643
setivar_object (click) 3181 3537 3 33 0 0% 0 0 1.123898
setivar_young (click) 3891 4259 4 41 0 0% 0 0 1.320229
str_concat (click) 5469 6016 6 62 0 0% 0 0 2.039254
throw (click) 5848 4291 5 46 0 0% 0 0 1.612402

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.