YJIT Benchmarks

Details for Benchmarks at 2022-06-17 20:15:08

Overall YJIT is 34.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.1% 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 5 153 75 153 20 153
mail 5 124 75 124 20 124
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
discourse 5 41 75 41 20 41
erubi 5 51 75 51 20 51
erubi_rails 5 972 75 972 20 972
fannkuchredux 5 15 51 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 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 444 75 444 20 444
fib 5 315 75 315 20 315
getivar 5 758 75 758 20 758
keyword_args 5 378 75 378 20 378
respond_to 5 102 75 102 20 102
setivar 5 1845 75 1845 20 1845
str_concat 5 193 75 193 20 193

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) 1012571 753276 131 1246 0 0% 0 0 0
hexapdf (click) 1120027 878983 682 7748 9 0% 0 0 0
liquid-render (click) 516187 395555 150 1658 2 0% 0 0 0
mail (click) 910811 658109 374 5512 15 0% 0 0 0
psych-load (click) 339675 255149 68 457 1 0% 0 0 0
railsbench (click) 2625435 1919578 1436 9871 16 0% 0 0 0
binarytrees (click) 174235 130445 13 58 0 0% 0 0 0
chunky_png (click) 384155 286522 88 1035 0 0% 0 0 0
discourse (click) 5924443 4399862 3195 25463 85 0% 2 0 0
erubi (click) 319515 242761 10 79 0 0% 0 0 0
erubi_rails (click) 1929435 1390550 300 1980 4 0% 0 0 0
fannkuchredux (click) 186843 140282 10 188 0 0% 0 0 0
lee (click) 378971 284454 58 622 0 0% 0 0 0
nbody (click) 183707 137646 12 158 0 0% 0 0 0
optcarrot (click) 514907 442895 207 3571 20 0% 0 0 0
rubykon (click) 318619 251178 144 1530 1 0% 0 0 0
30k_ifelse (click) 5563291 4350769 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659231 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172763 129074 10 49 0 0% 0 0 0
fib (click) 169819 127821 10 38 0 0% 0 0 0
getivar (click) 172123 130628 10 65 0 0% 0 0 0
keyword_args (click) 173595 129715 11 51 0 0% 0 0 0
respond_to (click) 174875 130528 10 64 0 0% 0 0 0
setivar (click) 172955 129717 10 38 0 0% 0 0 0
str_concat (click) 172955 130037 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.