YJIT Benchmarks

Details for Benchmarks at 2022-11-14 20:10:29

Overall YJIT is 31.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.3% 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 5 209 5 209
hexapdf 5 15 5 15
liquid-render 5 175 5 175
mail 5 123 5 123
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 273 5 273
binarytrees 5 83 5 83
chunky_png 5 31 5 31
erubi 5 67 5 67
erubi_rails 5 1117 5 1117
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 49 5 49
30k_methods 5 20 5 20
cfunc_itself 5 496 5 496
fib 5 327 5 327
getivar 5 426 5 426
keyword_args 5 385 5 385
respond_to 5 715 5 715
setivar 5 362 5 362
str_concat 5 482 5 482

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) 2332368 2330029 25 389 6 1% 0 0 0
hexapdf (click) 1804963 1803742 820 10306 189 1% 0 0 0
liquid-render (click) 602218 600586 156 1835 34 1% 0 0 0
mail (click) 1342189 1339850 373 5104 176 3% 0 0 0
psych-load (click) 814419 813236 70 637 19 2% 0 0 0
railsbench (click) 5682568 5682111 1779 13948 484 3% 0 0 0
ruby-lsp (click) 5537710 5536350 6425 40555 1521 3% 12304 0 0
binarytrees (click) 135642 133984 16 137 4 2% 0 0 0
chunky_png (click) 835317 835158 89 1188 31 2% 0 0 0
erubi (click) 751260 749257 13 145 4 2% 0 0 0
erubi_rails (click) 4768450 4767322 329 2684 111 4% 0 0 0
etanni (click) 136490 134687 13 105 4 3% 0 0 0
fannkuchredux (click) 147681 147534 13 267 4 1% 0 0 0
lee (click) 838452 837255 79 803 25 3% 0 0 0
nbody (click) 150291 149244 15 246 6 2% 0 0 0
optcarrot (click) 575956 574916 203 4131 93 2% 0 0 0
rubykon (click) 287196 286839 146 1656 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) 133540 132561 13 120 4 3% 0 0 0
fib (click) 132078 131639 13 109 4 3% 0 0 0
getivar (click) 134164 132897 13 136 4 2% 0 0 0
keyword_args (click) 134328 133128 14 122 4 3% 0 0 0
respond_to (click) 134057 132897 13 136 5 3% 0 0 0
setivar (click) 134318 133128 13 109 4 3% 0 0 0
str_concat (click) 133784 132729 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.