YJIT Benchmarks

Details for Benchmarks at 2022-07-05 05:15:25

Overall YJIT is 34.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.1% 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.

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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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 126 75 126 20 126
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 5 980 75 980 20 980
fannkuchredux 5 15 75 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 32 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 448 75 448 20 448
fib 5 315 75 315 20 315
getivar 5 761 75 761 20 761
keyword_args 5 378 75 378 20 378
respond_to 5 109 75 109 20 109
setivar 5 1847 75 1847 20 1847
str_concat 5 383 75 383 20 383

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 763662 131 1277 0 0% 0 0 0
hexapdf (click) 1121179 879870 682 7749 9 0% 0 0 0
liquid-render (click) 512091 393033 150 1644 2 0% 0 0 0
mail (click) 890715 643438 374 5255 15 0% 0 0 0
psych-load (click) 344667 258144 68 462 1 0% 0 0 0
railsbench (click) 2637659 1927974 1436 9931 16 0% 0 0 0
binarytrees (click) 172955 129450 13 58 0 0% 0 0 0
chunky_png (click) 383771 285633 88 1007 0 0% 0 0 0
erubi (click) 321179 243790 10 79 0 0% 0 0 0
erubi_rails (click) 1941979 1396826 300 1971 4 0% 0 0 0
fannkuchredux (click) 186971 140181 10 188 0 0% 0 0 0
lee (click) 383131 286937 58 623 0 0% 0 0 0
nbody (click) 182939 136980 12 158 0 0% 0 0 0
optcarrot (click) 513883 442262 207 3585 20 0% 0 0 0
rubykon (click) 319195 251717 144 1552 1 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) 171995 128408 10 49 0 0% 0 0 0
fib (click) 169947 127687 10 38 0 0% 0 0 0
getivar (click) 171867 130311 10 65 0 0% 0 0 0
keyword_args (click) 171931 128537 11 51 0 0% 0 0 0
respond_to (click) 173595 129533 10 64 0 0% 0 0 0
setivar (click) 171163 128426 10 38 0 0% 0 0 0
str_concat (click) 172123 129426 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.