YJIT Benchmarks

Details for Benchmarks at 2022-05-29 07:13:07

Overall YJIT is 32.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 26.1% 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 5 194 75 194 20 194
hexapdf 5 15 20 15
liquid-render 5 140 75 140 20 140
mail 5 107 75 107 20 107
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 28 75 28 20 28
discourse 5 37 75 37 20 37
erubi 5 49 75 49 20 49
erubi_rails 5 803 75 803 20 803
fannkuchredux 5 15 75 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 26 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 420 75 420 20 420
fib 5 320 75 320 20 320
getivar 5 760 75 760 20 760
keyword_args 5 377 75 377 20 377
respond_to 5 105 75 105 20 105
setivar 5 1888 75 1888 20 1888
str_concat 5 198 75 198 20 198

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) 1017563 756461 131 1260 0 0% 0 0 0
hexapdf (click) 1119323 878148 682 7742 9 0% 0 0 0
liquid-render (click) 504603 386723 150 1553 2 0% 0 0 0
mail (click) 899739 649194 374 5378 15 0% 0 0 0
psych-load (click) 339419 254749 68 457 1 0% 0 0 0
railsbench (click) 2645979 1931747 1436 9900 16 0% 0 0 0
binarytrees (click) 172571 129234 13 58 0 0% 0 0 0
chunky_png (click) 379739 283575 88 1001 0 0% 0 0 0
discourse (click) 5949979 4413649 3195 25497 84 0% 2 0 0
erubi (click) 314523 239217 10 79 0 0% 0 0 0
erubi_rails (click) 1952155 1404596 300 2037 4 0% 0 0 0
fannkuchredux (click) 187099 140228 10 188 0 0% 0 0 0
lee (click) 377755 283208 58 622 0 0% 0 0 0
nbody (click) 183387 137296 12 158 0 0% 0 0 0
optcarrot (click) 514587 442545 207 3571 20 0% 0 0 0
rubykon (click) 318491 250822 144 1530 1 0% 0 0 0
30k_ifelse (click) 5561947 4349936 9265 57804 0 0% 0 0 0
30k_methods (click) 2178139 1658881 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171099 127863 10 49 0 0% 0 0 0
fib (click) 171227 128710 10 38 0 0% 0 0 0
getivar (click) 172699 130843 10 65 0 0% 0 0 0
keyword_args (click) 173275 129365 11 51 0 0% 0 0 0
respond_to (click) 174555 130178 10 64 0 0% 0 0 0
setivar (click) 171291 128506 10 38 0 0% 0 0 0
str_concat (click) 172443 129552 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.