YJIT Benchmarks

Details for Benchmarks at 2022-07-19 05:32:03

Overall YJIT is 35.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.9% 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 5 158 75 158 20 158
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 30 75 30 20 30
erubi 5 53 75 53 20 53
erubi_rails 5 1007 75 1007 20 1007
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 30 22 20 22
cfunc_itself 5 427 75 427 20 427
fib 5 315 75 315 20 315
getivar 5 609 75 609 20 609
keyword_args 5 374 75 374 20 374
respond_to 5 105 75 105 20 105
setivar 5 966 75 966 20 966
str_concat 5 380 75 380 20 380

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) 1034139 778814 131 1255 0 0% 0 0 0
hexapdf (click) 1150747 928831 682 7942 9 0% 0 0 0
liquid-render (click) 521755 407729 150 1675 2 0% 0 0 0
mail (click) 930907 679293 374 5594 17 0% 0 0 0
psych-load (click) 348955 265293 68 474 1 0% 0 0 0
railsbench (click) 2665435 1977956 1436 9999 16 0% 0 0 0
binarytrees (click) 171931 128942 13 58 0 0% 0 0 0
chunky_png (click) 386779 290737 88 993 0 0% 0 0 0
erubi (click) 324059 247923 10 79 0 0% 0 0 0
erubi_rails (click) 1965339 1433884 300 2016 4 0% 0 0 0
fannkuchredux (click) 185947 139640 10 188 0 0% 0 0 0
lee (click) 386459 292485 58 630 0 0% 0 0 0
nbody (click) 183131 138433 12 171 0 0% 0 0 0
optcarrot (click) 514971 445144 207 3588 20 0% 0 0 0
rubykon (click) 322139 258650 144 1575 1 0% 0 0 0
30k_ifelse (click) 5561371 4349434 9265 57804 0 0% 0 0 0
30k_methods (click) 2176539 1657896 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170971 127867 10 49 0 0% 0 0 0
fib (click) 169499 127475 10 38 0 0% 0 0 0
getivar (click) 170779 129890 10 65 0 0% 0 0 0
keyword_args (click) 171867 128508 11 51 0 0% 0 0 0
respond_to (click) 172571 129025 10 64 0 0% 0 0 0
setivar (click) 171163 128510 10 38 0 0% 0 0 0
str_concat (click) 170587 128589 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.