YJIT Benchmarks

Details for Benchmarks at 2022-11-15 20:10:28

Overall YJIT is 33.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 36.0% 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 5 209 5 209
hexapdf 5 15 5 15
liquid-render 5 175 5 175
mail 5 125 5 125
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 241 5 241
binarytrees 5 78 5 78
chunky_png 5 31 5 31
erubi 5 67 5 67
erubi_rails 5 1135 5 1135
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 21 5 21
nbody 5 217 5 217
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 5 327 5 327
getivar 5 426 5 426
keyword_args 5 386 5 386
respond_to 5 702 5 702
setivar 5 362 5 362
str_concat 5 448 5 448

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) 2332132 2329863 25 373 6 1% 0 0 0
hexapdf (click) 1804154 1803110 820 10297 189 1% 0 0 0
liquid-render (click) 597273 594753 156 1841 34 1% 0 0 0
mail (click) 1348974 1346953 373 5193 176 3% 0 0 0
psych-load (click) 813632 812604 70 636 19 2% 0 0 0
railsbench (click) 5679151 5677401 1779 13888 484 3% 0 0 0
ruby-lsp (click) 5532824 5530778 6425 40518 1523 3% 12254 0 0
binarytrees (click) 135642 133984 16 137 4 2% 0 0 0
chunky_png (click) 832774 830909 89 1171 31 2% 0 0 0
erubi (click) 756189 755159 13 145 4 2% 0 0 0
erubi_rails (click) 4769630 4767952 329 2686 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) 826821 826786 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) 279630 279160 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) 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.