YJIT Benchmarks

Details for Benchmarks at 2022-05-10 19:17:43

Overall YJIT is 28.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 26.9% 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 5 175 75 175 20 175
hexapdf 5 15 20 15
liquid-render 5 136 75 136 20 136
mail 5 107 75 107 20 107
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 62 75 62 20 62
chunky_png 5 29 75 29 20 29
discourse 5 33 75 33 20 33
erubi 5 45 75 45 20 45
erubi_rails 5 822 75 822 20 822
fannkuchredux 5 15 73 15 20 15
lee 5 21 75 21 20 21
nbody 5 248 75 248 20 248
optcarrot 5 15 75 15 20 15
rubykon 5 15 25 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 21 29 21 20 21
cfunc_itself 5 442 75 442 20 442
fib 5 320 75 320 20 320
getivar 5 766 75 766 20 766
keyword_args 5 380 75 380 20 380
respond_to 5 103 75 103 20 103
setivar 5 1861 75 1861 20 1861
str_concat 5 194 75 194 20 194

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) 1013915 752753 131 1260 0 0% 0 0 0
hexapdf (click) 1113755 873301 682 7697 10 0% 0 0 0
liquid-render (click) 505691 387538 150 1553 2 0% 0 0 0
mail (click) 915611 661734 374 5563 15 0% 0 0 0
psych-load (click) 339547 255149 68 457 1 0% 0 0 0
railsbench (click) 2616155 1910452 1435 9766 16 0% 0 0 0
binarytrees (click) 171867 128729 13 58 0 0% 0 0 0
chunky_png (click) 381659 284857 88 1021 0 0% 0 0 0
discourse (click) 5845595 4333118 3161 24869 81 0% 2 0 0
erubi (click) 322395 242503 10 79 0 0% 0 0 0
erubi_rails (click) 1931227 1389289 300 1987 4 0% 0 0 0
fannkuchredux (click) 185883 139427 10 188 0 0% 0 0 0
lee (click) 377947 283455 58 618 0 0% 0 0 0
nbody (click) 181339 135930 12 158 0 0% 0 0 0
optcarrot (click) 512539 441179 207 3571 20 0% 0 0 0
rubykon (click) 316699 249762 144 1534 1 0% 0 0 0
30k_ifelse (click) 5560923 4349053 9265 57804 0 0% 0 0 0
30k_methods (click) 2176091 1657515 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170395 127358 10 49 0 0% 0 0 0
fib (click) 168859 126966 10 38 0 0% 0 0 0
getivar (click) 170651 129477 10 65 0 0% 0 0 0
keyword_args (click) 171227 127999 11 51 0 0% 0 0 0
respond_to (click) 172507 128812 10 64 0 0% 0 0 0
setivar (click) 170587 128001 10 38 0 0% 0 0 0
str_concat (click) 170587 128321 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.