YJIT Benchmarks

Details for Benchmarks at 2022-07-11 20:24:03

Overall YJIT is 34.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.2% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 155 75 155 20 155
mail 5 125 75 125 20 125
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 65 75 65 20 65
chunky_png 5 29 75 29 20 29
erubi 5 51 75 51 20 51
erubi_rails 5 1012 75 1012 20 1012
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 271 75 271 20 271
optcarrot 5 15 75 15 20 15
rubykon 5 15 33 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 436 75 436 20 436
fib 5 314 75 314 20 314
getivar 5 766 75 766 20 766
keyword_args 5 372 75 372 20 372
respond_to 5 100 75 100 20 100
setivar 5 1865 75 1865 20 1865
str_concat 5 386 75 386 20 386

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) 1027163 763103 131 1258 0 0% 0 0 0
hexapdf (click) 1120923 879619 682 7750 10 0% 0 0 0
liquid-render (click) 514011 394284 150 1673 2 0% 0 0 0
mail (click) 905435 653741 374 5369 15 0% 0 0 0
psych-load (click) 344027 257642 68 457 1 0% 0 0 0
railsbench (click) 2639259 1928753 1436 9944 16 0% 0 0 0
binarytrees (click) 172955 129450 13 58 0 0% 0 0 0
chunky_png (click) 391259 290584 88 1071 0 0% 0 0 0
erubi (click) 321179 243815 10 79 0 0% 0 0 0
erubi_rails (click) 1942043 1397164 300 1969 4 0% 0 0 0
fannkuchredux (click) 186971 140148 10 188 0 0% 0 0 0
lee (click) 382875 286428 58 623 0 0% 0 0 0
nbody (click) 182427 136651 12 158 0 0% 0 0 0
optcarrot (click) 514907 442887 207 3585 20 0% 0 0 0
rubykon (click) 318427 251340 144 1544 2 0% 0 0 0
30k_ifelse (click) 5562523 4350103 9265 57804 0 0% 0 0 0
30k_methods (click) 2177691 1658565 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171483 128112 10 49 0 0% 0 0 0
fib (click) 169947 127687 10 38 0 0% 0 0 0
getivar (click) 171739 130198 10 65 0 0% 0 0 0
keyword_args (click) 172827 129049 11 51 0 0% 0 0 0
respond_to (click) 173595 129533 10 64 0 0% 0 0 0
setivar (click) 171675 128722 10 38 0 0% 0 0 0
str_concat (click) 171611 129097 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.