YJIT Benchmarks

Details for Benchmarks at 2022-06-10 06:44:37

Overall YJIT is 36.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.0% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 188 75 188 20 188
hexapdf 5 15 20 15
liquid-render 5 146 75 146 20 146
mail 5 121 75 121 20 121
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 60 75 60 20 60
chunky_png 5 28 75 28 20 28
discourse 5 35 75 35 20 35
erubi 5 49 75 49 20 49
erubi_rails 5 997 75 997 20 997
fannkuchredux 5 15 51 15 20 15
lee 5 19 75 19 20 19
nbody 5 317 75 317 20 317
optcarrot 5 15 75 15 20 15
rubykon 5 15 31 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 20 30 20 20 20
cfunc_itself 5 400 75 400 20 400
fib 5 320 75 320 20 320
getivar 5 776 75 776 20 776
keyword_args 5 345 75 345 20 345
respond_to 5 97 75 97 20 97
setivar 5 1389 75 1389 20 1389
str_concat 5 196 75 196 20 196

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) 1012123 752808 131 1249 0 0% 0 0 0
hexapdf (click) 1120603 879845 682 7749 9 0% 0 0 0
liquid-render (click) 514203 394194 150 1637 2 0% 0 0 0
mail (click) 892379 645153 374 5320 15 0% 0 0 0
psych-load (click) 339675 255099 68 457 1 0% 0 0 0
railsbench (click) 2623259 1919003 1436 9854 16 0% 0 0 0
binarytrees (click) 174235 130445 13 58 0 0% 0 0 0
chunky_png (click) 381019 284960 88 1000 0 0% 0 0 0
discourse (click) 5925595 4401638 3197 25523 85 0% 2 0 0
erubi (click) 319515 242786 10 79 0 0% 0 0 0
erubi_rails (click) 1927515 1389066 300 1963 4 0% 0 0 0
fannkuchredux (click) 186843 140282 10 188 0 0% 0 0 0
lee (click) 378331 283852 58 622 0 0% 0 0 0
nbody (click) 183707 137646 12 158 0 0% 0 0 0
optcarrot (click) 514907 442895 207 3571 20 0% 0 0 0
rubykon (click) 316571 249756 144 1523 2 0% 0 0 0
30k_ifelse (click) 5561883 4349908 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659231 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172763 129074 10 49 0 0% 0 0 0
fib (click) 171227 128682 10 38 0 0% 0 0 0
getivar (click) 173019 131193 10 65 0 0% 0 0 0
keyword_args (click) 173595 129715 11 51 0 0% 0 0 0
respond_to (click) 174875 130528 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.