YJIT Benchmarks

Details for Benchmarks at 2022-11-11 20:10:28

Overall YJIT is 34.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 37.0% faster than CRuby!
The basic "faster" measurement is the geomean of all "headlining" x86 benchmarks on this page.

Headlining Benchmarks

These are "headlining" because the "overall" speedup above is based on these benchmarks specifically.

Speed of each Ruby implementation (iterations/second) relative to the CRuby interpreter. Higher is better.

Other Benchmarks

Speed of each Ruby implementation (iterations/second) relative to the CRuby interpreter. Higher is better.

MicroBenchmarks

Speed of each Ruby implementation (iterations/second) relative to the CRuby interpreter. Higher is better.

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Benchmarks Speed Details

Benchmark Memory Usage Details

Number of Iterations and Warmups Tested

bench No JIT warmups No JIT iters YJIT warmups YJIT iters
activerecord 5 207 5 207
hexapdf 5 15 5 15
liquid-render 5 174 5 174
mail 5 124 5 124
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 241 5 241
binarytrees 5 83 5 83
chunky_png 5 32 5 32
erubi 5 68 5 68
erubi_rails 5 1116 5 1116
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 21 5 21
nbody 5 234 5 234
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 499 5 499
fib 5 331 5 331
getivar 5 427 5 427
keyword_args 5 388 5 388
respond_to 5 696 5 696
setivar 5 421 5 421
str_concat 5 479 5 479

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
activerecord (click) 2329093 2327742 25 357 6 1% 0 0 0
hexapdf (click) 1790820 1788854 819 10286 189 1% 0 0 0
liquid-render (click) 597475 594994 156 1836 34 1% 0 0 0
mail (click) 1348845 1346838 373 5158 176 3% 0 0 0
psych-load (click) 810709 810575 70 637 19 2% 0 0 0
railsbench (click) 5680120 5677926 1779 13915 484 3% 0 0 0
ruby-lsp (click) 5528227 5527346 6425 40575 1523 3% 14004 0 0
binarytrees (click) 135642 133984 16 137 4 2% 0 0 0
chunky_png (click) 830402 829232 89 1173 31 2% 0 0 0
erubi (click) 743460 741561 13 145 4 2% 0 0 0
erubi_rails (click) 4770623 4768828 329 2694 111 4% 0 0 0
etanni (click) 129019 126998 13 105 4 3% 0 0 0
fannkuchredux (click) 147681 147534 13 267 4 1% 0 0 0
lee (click) 838553 837418 79 803 25 3% 0 0 0
nbody (click) 142803 141527 15 246 6 2% 0 0 0
optcarrot (click) 568459 567199 203 4131 93 2% 0 0 0
rubykon (click) 287094 286814 146 1658 32 1% 0 0 0
30k_ifelse (click) 5427259 5424734 9268 57194 4 0% 0 0 0
30k_methods (click) 2095599 2093105 5787 19423 4 0% 0 0 0
cfunc_itself (click) 126054 124779 13 120 4 3% 0 0 0
fib (click) 124604 124081 13 109 4 3% 0 0 0
getivar (click) 134164 132897 13 136 4 2% 0 0 0
keyword_args (click) 126854 125587 14 122 4 3% 0 0 0
respond_to (click) 134057 132897 13 136 5 3% 0 0 0
setivar (click) 126843 125587 13 109 4 3% 0 0 0
str_concat (click) 126288 125130 15 135 6 4% 0 0 0

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.