YJIT Benchmarks

Details for Benchmarks at 2022-05-22 19:12:44

Overall YJIT is 31.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.9% 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 5 194 75 194 20 194
hexapdf 5 15 20 15
liquid-render 5 139 75 139 20 139
mail 5 107 75 107 20 107
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 49 75 49 20 49
erubi_rails 5 804 75 804 20 804
fannkuchredux 5 15 74 15 20 15
lee 5 22 75 22 20 22
nbody 5 273 75 273 20 273
optcarrot 5 15 75 15 20 15
rubykon 5 15 25 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 430 75 430 20 430
fib 5 320 75 320 20 320
getivar 5 760 75 760 20 760
keyword_args 5 377 75 377 20 377
respond_to 5 103 75 103 20 103
setivar 5 1867 75 1867 20 1867
str_concat 5 195 75 195 20 195

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) 1015707 754720 131 1255 0 0% 0 0 0
hexapdf (click) 1119963 878186 683 7750 9 0% 0 0 0
liquid-render (click) 504475 386643 150 1545 2 0% 0 0 0
mail (click) 918299 662310 374 5621 15 0% 0 0 0
psych-load (click) 339419 254749 68 457 1 0% 0 0 0
railsbench (click) 2627483 1919179 1436 9734 16 0% 0 0 0
binarytrees (click) 173915 130095 13 58 0 0% 0 0 0
chunky_png (click) 376091 281229 88 966 0 0% 0 0 0
discourse (click) 5960027 4421192 3222 25625 85 0% 2 0 0
erubi (click) 316955 240904 10 79 0 0% 0 0 0
erubi_rails (click) 1952411 1403695 300 2017 4 0% 0 0 0
fannkuchredux (click) 186587 139932 10 188 0 0% 0 0 0
lee (click) 377755 283159 58 622 0 0% 0 0 0
nbody (click) 183387 137296 12 158 0 0% 0 0 0
optcarrot (click) 514587 442545 207 3571 20 0% 0 0 0
rubykon (click) 318619 251003 144 1533 1 0% 0 0 0
30k_ifelse (click) 5562971 4350419 9265 57804 0 0% 0 0 0
30k_methods (click) 2177307 1658316 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172443 128724 10 49 0 0% 0 0 0
fib (click) 170907 128332 10 38 0 0% 0 0 0
getivar (click) 172699 130843 10 65 0 0% 0 0 0
keyword_args (click) 173275 129365 11 51 0 0% 0 0 0
respond_to (click) 174555 130178 10 64 0 0% 0 0 0
setivar (click) 172635 129367 10 38 0 0% 0 0 0
str_concat (click) 172635 129687 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.