YJIT Benchmarks

Details for Benchmarks at 2022-03-13 07:12:44

Overall YJIT is 33.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.5% 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 5 181 75 181 20 181
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 122 75 122 20 122
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 67 75 67 20 67
chunky_png 5 30 75 30 20 30
discourse 5 34 75 34 20 34
erubi 5 48 75 48 20 48
erubi_rails 5 976 75 976 20 976
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 283 75 283 20 283
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 450 75 450 20 450
fib 5 320 75 320 20 320
getivar 5 771 75 771 20 771
keyword_args 5 376 75 376 20 376
respond_to 5 109 75 109 20 109
setivar 5 1898 75 1898 20 1898

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) 992337 761573 185 1199 0 0% 0 0 0
hexapdf (click) 1114385 913287 599 8165 615 7% 0 0 320
liquid-render (click) 493713 392206 143 1566 95 6% 0 0 1
mail (click) 877137 656992 325 5322 125 2% 0 0 39
psych-load (click) 330769 261621 59 434 1 0% 0 0 0
railsbench (click) 2532561 1930865 1297 9338 268 2% 0 0 26
binarytrees (click) 152849 117312 11 59 0 0% 0 0 0
chunky_png (click) 366353 285970 85 864 0 0% 0 0 0
discourse (click) 22702033 11402007 3134 285487 261953 91% 2 0 133
erubi (click) 321937 255102 10 79 0 0% 0 0 0
erubi_rails (click) 1906385 1435968 262 1875 18 0% 0 0 3
fannkuchredux (click) 166545 128010 8 189 0 0% 0 0 0
lee (click) 370833 291465 45 587 69 11% 0 0 12
nbody (click) 161553 124184 10 159 0 0% 0 0 0
optcarrot (click) 488785 429814 198 3576 20 0% 0 0 0
rubykon (click) 294097 237802 140 1540 1 0% 0 0 0
30k_ifelse (click) 5541329 4337307 9263 57805 0 0% 0 0 0
30k_methods (click) 2156497 1645769 5782 19362 0 0% 0 0 0
cfunc_itself (click) 150673 115587 8 50 0 0% 0 0 0
fib (click) 141009 107505 8 39 0 0% 0 0 0
getivar (click) 151185 117844 8 66 0 0% 0 0 0
keyword_args (click) 151633 116253 9 52 0 0% 0 0 0
respond_to (click) 152913 117066 8 65 0 0% 0 0 0
setivar (click) 151057 116255 8 39 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.