YJIT Benchmarks

Details for Benchmarks at 2022-06-02 07:13:29

Overall YJIT is 31.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 24.7% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 163 75 163 20 163
hexapdf 5 15 20 15
liquid-render 5 139 75 139 20 139
mail 5 107 75 107 20 107
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 66 75 66 20 66
chunky_png 5 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 48 75 48 20 48
erubi_rails 5 787 75 787 20 787
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 262 75 262 20 262
optcarrot 5 15 75 15 20 15
rubykon 5 15 26 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 422 75 422 20 422
fib 5 320 75 320 20 320
getivar 5 759 75 759 20 759
keyword_args 5 370 75 370 20 370
respond_to 5 107 75 107 20 107
setivar 5 1868 75 1868 20 1868
str_concat 5 203 75 203 20 203

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) 1016347 755742 131 1251 0 0% 0 0 0
hexapdf (click) 1120539 879434 682 7749 10 0% 0 0 0
liquid-render (click) 504859 387625 150 1536 2 0% 0 0 0
mail (click) 936987 676155 375 5767 15 0% 0 0 0
psych-load (click) 339675 255149 68 457 1 0% 0 0 0
railsbench (click) 2634651 1924823 1436 9794 16 0% 0 0 0
binarytrees (click) 173339 129880 13 58 0 0% 0 0 0
chunky_png (click) 376027 281560 88 967 0 0% 0 0 0
discourse (click) 6009243 4458792 3270 25987 86 0% 2 0 0
erubi (click) 319643 243021 10 79 0 0% 0 0 0
erubi_rails (click) 1949851 1402987 300 1987 4 0% 0 0 0
fannkuchredux (click) 188251 141143 10 188 0 0% 0 0 0
lee (click) 378395 283852 58 622 0 0% 0 0 0
nbody (click) 184027 138024 12 158 0 0% 0 0 0
optcarrot (click) 515227 443273 207 3571 20 0% 0 0 0
rubykon (click) 319899 252038 144 1542 1 0% 0 0 0
30k_ifelse (click) 5563291 4350769 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659231 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172699 129074 10 49 0 0% 0 0 0
fib (click) 171547 129060 10 38 0 0% 0 0 0
getivar (click) 172123 130628 10 65 0 0% 0 0 0
keyword_args (click) 173915 130093 11 51 0 0% 0 0 0
respond_to (click) 175195 130906 10 64 0 0% 0 0 0
setivar (click) 172955 129717 10 38 0 0% 0 0 0
str_concat (click) 172955 130037 12 62 0 0% 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.