YJIT Benchmarks

Details for Benchmarks at 2022-07-07 20:15:18

Overall YJIT is 34.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.1% 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 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 65 75 65 20 65
chunky_png 5 30 75 30 20 30
erubi 5 53 75 53 20 53
erubi_rails 5 1002 75 1002 20 1002
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 273 75 273 20 273
optcarrot 5 15 75 15 20 15
rubykon 5 15 33 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 433 75 433 20 433
fib 5 315 75 315 20 315
getivar 5 768 75 768 20 768
keyword_args 5 373 75 373 20 373
respond_to 5 104 75 104 20 104
setivar 5 1862 75 1862 20 1862
str_concat 5 376 75 376 20 376

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) 1028507 764311 131 1254 0 0% 0 0 0
hexapdf (click) 1123355 881560 682 7749 9 0% 0 0 0
liquid-render (click) 513179 393035 150 1636 2 0% 0 0 0
mail (click) 927067 668999 374 5588 15 0% 0 0 0
psych-load (click) 342811 256697 68 462 1 0% 0 0 0
railsbench (click) 2636571 1926932 1436 9921 16 0% 0 0 0
binarytrees (click) 172955 129450 13 58 0 0% 0 0 0
chunky_png (click) 385243 287220 88 1002 0 0% 0 0 0
erubi (click) 320987 243680 10 79 0 0% 0 0 0
erubi_rails (click) 1941595 1396553 300 1975 4 0% 0 0 0
fannkuchredux (click) 186971 140181 10 188 0 0% 0 0 0
lee (click) 383643 287216 58 623 0 0% 0 0 0
nbody (click) 182427 136684 12 158 0 0% 0 0 0
optcarrot (click) 514907 442887 207 3585 20 0% 0 0 0
rubykon (click) 319067 251696 144 1550 1 0% 0 0 0
30k_ifelse (click) 5562523 4350103 9265 57804 0 0% 0 0 0
30k_methods (click) 2177691 1658565 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171483 128112 10 49 0 0% 0 0 0
fib (click) 170459 128016 10 38 0 0% 0 0 0
getivar (click) 171739 130231 10 65 0 0% 0 0 0
keyword_args (click) 172443 128833 11 51 0 0% 0 0 0
respond_to (click) 174107 129862 10 64 0 0% 0 0 0
setivar (click) 171675 128722 10 38 0 0% 0 0 0
str_concat (click) 171099 128801 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.