YJIT Benchmarks

Details for Benchmarks at 2022-05-13 19:12:53

Overall YJIT is 30.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.8% 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 5 191 75 191 20 191
hexapdf 5 15 20 15
liquid-render 5 134 75 134 20 134
mail 5 105 75 105 20 105
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 38 75 38 20 38
erubi 5 47 75 47 20 47
erubi_rails 5 807 75 807 20 807
fannkuchredux 5 15 73 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 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 439 75 439 20 439
fib 5 320 75 320 20 320
getivar 5 764 75 764 20 764
keyword_args 5 380 75 380 20 380
respond_to 5 98 75 98 20 98
setivar 5 1843 75 1843 20 1843
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) 1018203 757642 131 1239 0 0% 0 0 0
hexapdf (click) 1119451 878694 682 7742 9 0% 0 0 0
liquid-render (click) 501787 384824 150 1550 2 0% 0 0 0
mail (click) 936987 676463 374 5759 15 0% 0 0 0
psych-load (click) 339355 255006 68 457 1 0% 0 0 0
railsbench (click) 2627675 1919692 1436 9749 16 0% 0 0 0
binarytrees (click) 171867 128729 13 58 0 0% 0 0 0
chunky_png (click) 379995 284032 88 997 0 0% 0 0 0
discourse (click) 5934939 4405782 3197 25369 84 0% 2 0 0
erubi (click) 319451 242786 10 79 0 0% 0 0 0
erubi_rails (click) 1952347 1404072 300 2013 4 0% 0 0 0
fannkuchredux (click) 185883 139427 10 188 0 0% 0 0 0
lee (click) 377691 283380 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) 316891 249825 144 1535 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.