YJIT Benchmarks

Details for Benchmarks at 2022-03-18 07:12:51

Overall YJIT is 33.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 30.7% 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 5 180 75 180 20 180
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 122 75 122 20 122
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 30 75 30 20 30
discourse 5 34 75 34 20 34
erubi 5 47 75 47 20 47
erubi_rails 5 980 75 980 20 980
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 281 75 281 20 281
optcarrot 5 15 75 15 20 15
rubykon 5 15 38 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 443 75 443 20 443
fib 5 320 75 320 20 320
getivar 5 768 75 768 20 768
keyword_args 5 379 75 379 20 379
respond_to 5 107 75 107 20 107
setivar 5 1910 75 1910 20 1910

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) 990801 759017 185 1199 0 0% 0 0 0
hexapdf (click) 1114577 913514 599 8164 613 7% 0 0 320
liquid-render (click) 488209 387600 143 1507 95 6% 0 0 1
mail (click) 893713 670584 324 5476 125 2% 0 0 39
psych-load (click) 330641 261508 59 434 1 0% 0 0 0
railsbench (click) 2536529 1933049 1297 9360 268 2% 0 0 26
binarytrees (click) 152273 117023 11 59 0 0% 0 0 0
chunky_png (click) 366417 285984 85 866 0 0% 0 0 0
discourse (click) 22703697 11403386 3133 285502 261955 91% 2 0 133
erubi (click) 310353 244286 10 79 0 0% 0 0 0
erubi_rails (click) 1905361 1435089 262 1873 18 0% 0 0 3
fannkuchredux (click) 166161 127794 8 189 0 0% 0 0 0
lee (click) 373137 294268 45 587 69 11% 0 0 12
nbody (click) 161745 124297 10 159 0 0% 0 0 0
optcarrot (click) 488785 429814 198 3576 20 0% 0 0 0
rubykon (click) 293393 237338 140 1535 2 0% 0 0 0
30k_ifelse (click) 5541457 4337460 9263 57805 0 0% 0 0 0
30k_methods (click) 2156689 1645882 5782 19362 0 0% 0 0 0
cfunc_itself (click) 150929 115725 8 50 0 0% 0 0 0
fib (click) 149265 115195 8 39 0 0% 0 0 0
getivar (click) 151633 118100 8 66 0 0% 0 0 0
keyword_args (click) 151633 116253 9 52 0 0% 0 0 0
respond_to (click) 152913 117066 8 65 0 0% 0 0 0
setivar (click) 151057 116255 8 39 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.