YJIT Benchmarks

Details for Benchmarks at 2022-07-07 05:18:31

Overall YJIT is 35.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.3% 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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 125 75 125 20 125
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 29 75 29 20 29
erubi 5 51 75 51 20 51
erubi_rails 5 994 75 994 20 994
fannkuchredux 5 15 56 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 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 443 75 443 20 443
fib 5 314 75 314 20 314
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 1873 75 1873 20 1873
str_concat 5 372 75 372 20 372

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) 1029851 765247 131 1260 0 0% 0 0 0
hexapdf (click) 1123419 881480 682 7753 10 0% 0 0 0
liquid-render (click) 513691 394372 150 1643 2 0% 0 0 0
mail (click) 925659 666789 374 5559 15 0% 0 0 0
psych-load (click) 344923 258548 68 457 1 0% 0 0 0
railsbench (click) 2631451 1923872 1436 9888 16 0% 0 0 0
binarytrees (click) 172955 129483 13 58 0 0% 0 0 0
chunky_png (click) 385307 287067 88 1004 0 0% 0 0 0
erubi (click) 322011 244766 10 79 0 0% 0 0 0
erubi_rails (click) 1943835 1398287 300 1990 4 0% 0 0 0
fannkuchredux (click) 187483 140477 10 188 0 0% 0 0 0
lee (click) 382363 286099 58 623 0 0% 0 0 0
nbody (click) 182427 136684 12 158 0 0% 0 0 0
optcarrot (click) 514395 442591 207 3585 20 0% 0 0 0
rubykon (click) 317787 250574 144 1541 1 0% 0 0 0
30k_ifelse (click) 5562523 4350103 9265 57804 0 0% 0 0 0
30k_methods (click) 2177179 1658269 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171483 128112 10 49 0 0% 0 0 0
fib (click) 169947 127720 10 38 0 0% 0 0 0
getivar (click) 171675 130176 10 65 0 0% 0 0 0
keyword_args (click) 172827 129049 11 51 0 0% 0 0 0
respond_to (click) 173211 129350 10 64 0 0% 0 0 0
setivar (click) 171675 128755 10 38 0 0% 0 0 0
str_concat (click) 171611 129130 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.