YJIT Benchmarks

Details for Benchmarks at 2022-07-30 05:15:35

Overall YJIT is 35.1% 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.

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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 5 195 75 195 20 195
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
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 31 75 31 20 31
erubi 5 61 75 61 20 61
erubi_rails 5 1037 75 1037 20 1037
fannkuchredux 5 15 73 15 20 15
lee 5 21 75 21 20 21
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 5 426 75 426 20 426
fib 5 314 75 314 20 314
getivar 5 610 75 610 20 610
keyword_args 5 379 75 379 20 379
respond_to 5 106 75 106 20 106
setivar 5 961 75 961 20 961
str_concat 5 465 75 465 20 465

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) 1038107 781227 131 1283 0 0% 0 0 0
hexapdf (click) 1150555 925264 682 8012 9 0% 0 0 0
liquid-render (click) 519195 403788 150 1671 2 0% 0 0 0
mail (click) 901787 652076 374 5354 17 0% 0 0 0
psych-load (click) 346715 262844 68 482 1 0% 0 0 0
railsbench (click) 2656923 1968004 1436 10010 16 0% 0 0 0
binarytrees (click) 172187 128374 13 58 0 0% 0 0 0
chunky_png (click) 384475 287843 88 996 0 0% 0 0 0
erubi (click) 323483 246759 10 79 0 0% 0 0 0
erubi_rails (click) 1962651 1430465 300 2032 4 0% 0 0 0
fannkuchredux (click) 185563 138208 10 188 0 0% 0 0 0
lee (click) 385179 290819 58 632 0 0% 0 0 0
nbody (click) 182811 137569 12 171 0 0% 0 0 0
optcarrot (click) 513755 442440 207 3588 20 0% 0 0 0
rubykon (click) 322139 257582 144 1580 1 0% 0 0 0
30k_ifelse (click) 5561243 4348842 9265 57804 0 0% 0 0 0
30k_methods (click) 2176411 1657304 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170779 127147 10 49 0 0% 0 0 0
fib (click) 169243 126755 10 38 0 0% 0 0 0
getivar (click) 170907 128842 10 65 0 0% 0 0 0
keyword_args (click) 171611 127788 11 51 0 0% 0 0 0
respond_to (click) 172827 128601 10 64 0 0% 0 0 0
setivar (click) 170843 127662 10 38 0 0% 0 0 0
str_concat (click) 170843 128069 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.