YJIT Benchmarks

Details for Benchmarks at 2022-08-19 20:14:12

Overall YJIT is 34.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.7% 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.

Want Raw Graphs and CSV?

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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 127 75 127 20 127
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 30 75 30 20 30
erubi 5 62 75 62 20 62
erubi_rails 5 1019 75 1019 20 1019
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 262 75 262 20 262
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 30 22 20 22
cfunc_itself 5 410 75 410 20 410
fib 5 315 75 315 20 315
getivar 5 616 75 616 20 616
keyword_args 5 366 75 366 20 366
respond_to 5 107 75 107 20 107
setivar 5 990 75 990 20 990
str_concat 5 448 75 448 20 448

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) 1033819 777905 131 1276 0 0% 0 0 0
hexapdf (click) 1149531 923573 682 8016 10 0% 0 0 0
liquid-render (click) 514139 400526 150 1675 2 0% 0 0 0
mail (click) 906843 654405 374 5396 17 0% 0 0 0
psych-load (click) 345627 261885 68 482 1 0% 0 0 0
railsbench (click) 2654235 1965478 1436 10017 16 0% 0 0 0
binarytrees (click) 171099 127751 13 58 0 0% 0 0 0
chunky_png (click) 386395 289471 88 996 0 0% 0 0 0
erubi (click) 327323 249585 10 79 0 0% 0 0 0
erubi_rails (click) 1961115 1428591 300 2030 4 0% 0 0 0
fannkuchredux (click) 185051 137519 10 196 0 0% 0 0 0
lee (click) 383323 289100 58 632 0 0% 0 0 0
nbody (click) 181595 136896 12 171 0 0% 0 0 0
optcarrot (click) 512987 442063 207 3588 20 0% 0 0 0
rubykon (click) 320795 256516 144 1575 1 0% 0 0 0
30k_ifelse (click) 5560155 4348219 9265 57804 0 0% 0 0 0
30k_methods (click) 2175323 1656681 5784 19361 0 0% 0 0 0
cfunc_itself (click) 169627 126524 10 49 0 0% 0 0 0
fib (click) 168091 126132 10 38 0 0% 0 0 0
getivar (click) 169755 128219 10 65 0 0% 0 0 0
keyword_args (click) 170459 127165 11 51 0 0% 0 0 0
respond_to (click) 171739 127978 10 64 0 0% 0 0 0
setivar (click) 169755 127039 10 38 0 0% 0 0 0
str_concat (click) 169755 127371 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.