YJIT Benchmarks

Details for Benchmarks at 2022-07-09 05:14:50

Overall YJIT is 34.3% 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 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 124 75 124 20 124
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 30 75 30 20 30
erubi 5 53 75 53 20 53
erubi_rails 5 991 75 991 20 991
fannkuchredux 5 15 57 15 20 15
lee 5 21 75 21 20 21
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 34 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 442 75 442 20 442
fib 5 311 75 311 20 311
getivar 5 756 75 756 20 756
keyword_args 5 374 75 374 20 374
respond_to 5 104 75 104 20 104
setivar 5 1850 75 1850 20 1850
str_concat 5 376 75 376 20 376

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) 1028379 764165 131 1243 0 0% 0 0 0
hexapdf (click) 1123931 881889 682 7760 10 0% 0 0 0
liquid-render (click) 508891 390624 150 1603 2 0% 0 0 0
mail (click) 952411 686261 375 5827 15 0% 0 0 0
psych-load (click) 344539 258021 68 457 1 0% 0 0 0
railsbench (click) 2637851 1928097 1436 9939 16 0% 0 0 0
binarytrees (click) 172955 129483 13 58 0 0% 0 0 0
chunky_png (click) 387931 288629 88 1033 0 0% 0 0 0
erubi (click) 321691 244169 10 79 0 0% 0 0 0
erubi_rails (click) 1942811 1397429 300 1992 4 0% 0 0 0
fannkuchredux (click) 186971 140148 10 188 0 0% 0 0 0
lee (click) 383899 287334 58 623 0 0% 0 0 0
nbody (click) 182427 136651 12 158 0 0% 0 0 0
optcarrot (click) 514395 442558 207 3585 20 0% 0 0 0
rubykon (click) 316763 249854 144 1527 1 0% 0 0 0
30k_ifelse (click) 5561499 4349478 9265 57804 0 0% 0 0 0
30k_methods (click) 2177179 1658269 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171995 128408 10 49 0 0% 0 0 0
fib (click) 169947 127720 10 38 0 0% 0 0 0
getivar (click) 171867 130311 10 65 0 0% 0 0 0
keyword_args (click) 172443 128833 11 51 0 0% 0 0 0
respond_to (click) 173595 129533 10 64 0 0% 0 0 0
setivar (click) 171291 128539 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.