YJIT Benchmarks

Details for Benchmarks at 2022-06-28 05:17:55

Overall YJIT is 35.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.1% 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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 155 75 155 20 155
mail 5 123 75 123 20 123
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 52 75 52 20 52
erubi_rails 5 998 75 998 20 998
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 33 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 417 75 417 20 417
fib 5 315 75 315 20 315
getivar 5 764 75 764 20 764
keyword_args 5 374 75 374 20 374
respond_to 5 104 75 104 20 104
setivar 5 1839 75 1839 20 1839
str_concat 5 360 75 360 20 360

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) 1016027 756500 131 1243 0 0% 0 0 0
hexapdf (click) 1119643 879306 682 7752 9 0% 0 0 0
liquid-render (click) 515355 395285 150 1671 2 0% 0 0 0
mail (click) 915739 660608 375 5565 15 0% 0 0 0
psych-load (click) 338779 254240 68 457 1 0% 0 0 0
railsbench (click) 2618907 1915662 1436 9866 16 0% 0 0 0
binarytrees (click) 172443 129154 13 58 0 0% 0 0 0
chunky_png (click) 383259 285176 88 1026 0 0% 0 0 0
erubi (click) 317147 241480 10 79 0 0% 0 0 0
erubi_rails (click) 1925595 1387361 300 1963 4 0% 0 0 0
fannkuchredux (click) 186459 139852 10 188 0 0% 0 0 0
lee (click) 378075 283584 58 622 0 0% 0 0 0
nbody (click) 181915 136355 12 158 0 0% 0 0 0
optcarrot (click) 513627 441900 207 3571 20 0% 0 0 0
rubykon (click) 318299 250669 144 1536 2 0% 0 0 0
30k_ifelse (click) 5562523 4350103 9265 57804 0 0% 0 0 0
30k_methods (click) 2177179 1658236 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171483 128079 10 49 0 0% 0 0 0
fib (click) 169947 127687 10 38 0 0% 0 0 0
getivar (click) 171739 130231 10 65 0 0% 0 0 0
keyword_args (click) 172315 128720 11 51 0 0% 0 0 0
respond_to (click) 173595 129533 10 64 0 0% 0 0 0
setivar (click) 172187 129051 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.