YJIT Benchmarks

Details for Benchmarks at 2022-06-04 19:12:38

Overall YJIT is 31.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 25.9% 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 5 193 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 66 75 66 20 66
chunky_png 5 28 75 28 20 28
discourse 5 32 75 32 20 32
erubi 5 48 75 48 20 48
erubi_rails 5 781 75 781 20 781
fannkuchredux 5 15 51 15 20 15
lee 5 21 75 21 20 21
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 24 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 432 75 432 20 432
fib 5 320 75 320 20 320
getivar 5 767 75 767 20 767
keyword_args 5 377 75 377 20 377
respond_to 5 107 75 107 20 107
setivar 5 1848 75 1848 20 1848
str_concat 5 202 75 202 20 202

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) 1016475 756145 131 1265 0 0% 0 0 0
hexapdf (click) 1116891 876592 682 7746 9 0% 0 0 0
liquid-render (click) 506203 388146 150 1553 2 0% 0 0 0
mail (click) 894043 645931 374 5330 15 0% 0 0 0
psych-load (click) 339675 255149 68 457 1 0% 0 0 0
railsbench (click) 2637915 1927283 1436 9822 16 0% 0 0 0
binarytrees (click) 174235 130445 13 58 0 0% 0 0 0
chunky_png (click) 377307 282158 88 970 0 0% 0 0 0
discourse (click) 5938715 4404130 3188 25375 82 0% 2 0 0
erubi (click) 319451 242786 10 79 0 0% 0 0 0
erubi_rails (click) 1948635 1402231 300 1958 4 0% 0 0 0
fannkuchredux (click) 188251 141143 10 188 0 0% 0 0 0
lee (click) 378459 283852 58 622 0 0% 0 0 0
nbody (click) 183579 137646 12 158 0 0% 0 0 0
optcarrot (click) 514907 442895 207 3571 20 0% 0 0 0
rubykon (click) 319323 251702 144 1538 1 0% 0 0 0
30k_ifelse (click) 5563291 4350769 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659231 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172763 129074 10 49 0 0% 0 0 0
fib (click) 171227 128682 10 38 0 0% 0 0 0
getivar (click) 173019 131193 10 65 0 0% 0 0 0
keyword_args (click) 173595 129715 11 51 0 0% 0 0 0
respond_to (click) 174875 130528 10 64 0 0% 0 0 0
setivar (click) 172827 129717 10 38 0 0% 0 0 0
str_concat (click) 172955 130037 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.