YJIT Benchmarks

Details for Benchmarks at 2022-05-12 19:13:34

Overall YJIT is 29.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.4% 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 5 137 75 137 20 137
mail 5 106 75 106 20 106
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 29 75 29 20 29
discourse 5 34 75 34 20 34
erubi 5 47 75 47 20 47
erubi_rails 5 807 75 807 20 807
fannkuchredux 5 15 65 15 20 15
lee 5 22 75 22 20 22
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 25 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 438 75 438 20 438
fib 5 320 75 320 20 320
getivar 5 769 75 769 20 769
keyword_args 5 374 75 374 20 374
respond_to 5 103 75 103 20 103
setivar 5 1862 75 1862 20 1862
str_concat 5 197 75 197 20 197

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) 1011099 751227 131 1232 0 0% 0 0 0
hexapdf (click) 1114011 873798 682 7699 10 0% 0 0 0
liquid-render (click) 504923 387375 150 1554 2 0% 0 0 0
mail (click) 913883 660046 374 5537 15 0% 0 0 0
psych-load (click) 338971 254677 68 457 1 0% 0 0 0
railsbench (click) 2623387 1915445 1436 9830 16 0% 0 0 0
binarytrees (click) 171867 128729 13 58 0 0% 0 0 0
chunky_png (click) 380251 283911 88 1001 0 0% 0 0 0
discourse (click) 5890907 4367338 3197 25266 83 0% 2 0 0
erubi (click) 319451 242761 10 79 0 0% 0 0 0
erubi_rails (click) 1931803 1390392 300 2006 4 0% 0 0 0
fannkuchredux (click) 185371 139131 10 188 0 0% 0 0 0
lee (click) 377755 283415 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) 317083 249961 144 1538 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) 168347 126670 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.