YJIT Benchmarks

Details for Benchmarks at 2022-11-10 20:10:37

Overall YJIT is 30.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.2% 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 5 176 5 176
mail 5 124 5 124
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 239 5 239
binarytrees 5 82 5 82
chunky_png 5 31 5 31
erubi 5 67 5 67
erubi_rails 5 1110 5 1110
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 21 5 21
nbody 5 256 5 256
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 483 5 483
fib 5 326 5 326
getivar 5 427 5 427
keyword_args 5 385 5 385
respond_to 5 660 5 660
setivar 5 401 5 401
str_concat 5 471 5 471

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) 2337288 2335928 25 395 6 1% 0 0 0
hexapdf (click) 1805102 1803767 819 10312 189 1% 0 0 0
liquid-render (click) 599357 598771 156 1839 34 1% 0 0 0
mail (click) 1351985 1351429 373 5181 176 3% 0 0 0
psych-load (click) 814152 812885 70 636 19 2% 0 0 0
railsbench (click) 5681200 5681157 1779 13952 484 3% 0 0 0
ruby-lsp (click) 5542702 5542251 6425 40599 1521 3% 12804 0 0
binarytrees (click) 135642 133984 16 137 4 2% 0 0 0
chunky_png (click) 835048 835040 89 1178 31 2% 0 0 0
erubi (click) 758319 756655 13 145 4 2% 0 0 0
erubi_rails (click) 4771951 4769742 329 2708 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) 838494 837255 79 803 25 3% 0 0 0
nbody (click) 142803 141527 15 246 6 2% 0 0 0
optcarrot (click) 575956 574916 203 4131 93 2% 0 0 0
rubykon (click) 286894 286696 146 1654 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) 130844 128623 13 106 4 3% 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) 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.