YJIT Benchmarks

Details for Benchmarks at 2022-05-16 19:12:57

Overall YJIT is 31.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 26.8% 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 5 137 75 137 20 137
mail 5 107 75 107 20 107
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 48 75 48 20 48
erubi_rails 5 791 75 791 20 791
fannkuchredux 5 15 72 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 25 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 448 75 448 20 448
fib 5 320 75 320 20 320
getivar 5 765 75 765 20 765
keyword_args 5 376 75 376 20 376
respond_to 5 105 75 105 20 105
setivar 5 1853 75 1853 20 1853
str_concat 5 195 75 195 20 195

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) 1017179 756292 131 1260 0 0% 0 0 0
hexapdf (click) 1120091 878995 682 7746 9 0% 0 0 0
liquid-render (click) 511003 390909 150 1593 2 0% 0 0 0
mail (click) 910939 658400 374 5517 15 0% 0 0 0
psych-load (click) 339547 255149 68 457 1 0% 0 0 0
railsbench (click) 2645979 1932092 1436 9895 16 0% 0 0 0
binarytrees (click) 171867 128729 13 58 0 0% 0 0 0
chunky_png (click) 381787 285019 88 1023 0 0% 0 0 0
discourse (click) 5908379 4382849 3162 25137 82 0% 2 0 0
erubi (click) 319707 243245 10 79 0 0% 0 0 0
erubi_rails (click) 1949019 1401969 300 1987 4 0% 0 0 0
fannkuchredux (click) 185371 139131 10 188 0 0% 0 0 0
lee (click) 377883 283548 58 622 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) 316635 249827 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) 170075 127705 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.