YJIT Benchmarks

Details for Benchmarks at 2022-07-04 20:14:29

Overall YJIT is 36.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.5% 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 5 157 75 157 20 157
mail 5 125 75 125 20 125
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 53 75 53 20 53
erubi_rails 5 987 75 987 20 987
fannkuchredux 5 15 57 15 20 15
lee 5 21 75 21 20 21
nbody 5 274 75 274 20 274
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 5 447 75 447 20 447
fib 5 315 75 315 20 315
getivar 5 767 75 767 20 767
keyword_args 5 379 75 379 20 379
respond_to 5 109 75 109 20 109
setivar 5 1850 75 1850 20 1850
str_concat 5 382 75 382 20 382

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) 1027803 763807 131 1254 0 0% 0 0 0
hexapdf (click) 1123419 881497 682 7754 10 0% 0 0 0
liquid-render (click) 512411 393144 150 1647 2 0% 0 0 0
mail (click) 907035 655136 374 5373 15 0% 0 0 0
psych-load (click) 344795 258257 68 462 1 0% 0 0 0
railsbench (click) 2635803 1927004 1436 9914 16 0% 0 0 0
binarytrees (click) 172443 129154 13 58 0 0% 0 0 0
chunky_png (click) 387163 288204 88 1029 0 0% 0 0 0
erubi (click) 321691 244119 10 79 0 0% 0 0 0
erubi_rails (click) 1940059 1395885 300 1967 4 0% 0 0 0
fannkuchredux (click) 186971 140148 10 188 0 0% 0 0 0
lee (click) 382875 286478 58 623 0 0% 0 0 0
nbody (click) 182555 136764 12 158 0 0% 0 0 0
optcarrot (click) 514907 442887 207 3585 20 0% 0 0 0
rubykon (click) 316891 249974 144 1533 1 0% 0 0 0
30k_ifelse (click) 5561819 4349639 9265 57804 0 0% 0 0 0
30k_methods (click) 2177179 1658236 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171611 128192 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) 172315 128753 11 51 0 0% 0 0 0
respond_to (click) 174107 129862 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.