YJIT Benchmarks

Details for Benchmarks at 2022-06-16 05:14:59

Overall YJIT is 36.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.6% 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 5 153 75 153 20 153
mail 5 124 75 124 20 124
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 30 75 30 20 30
discourse 5 41 75 41 20 41
erubi 5 50 75 50 20 50
erubi_rails 5 939 75 939 20 939
fannkuchredux 5 15 75 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 31 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 437 75 437 20 437
fib 5 315 75 315 20 315
getivar 5 771 75 771 20 771
keyword_args 5 379 75 379 20 379
respond_to 5 102 75 102 20 102
setivar 5 1847 75 1847 20 1847
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) 1014043 754187 131 1247 0 0% 0 0 0
hexapdf (click) 1120347 879224 682 7753 9 0% 0 0 0
liquid-render (click) 516699 396245 150 1661 2 0% 0 0 0
mail (click) 910811 658065 374 5513 15 0% 0 0 0
psych-load (click) 339995 255533 68 462 1 0% 0 0 0
railsbench (click) 2619483 1916565 1436 9835 16 0% 0 0 0
binarytrees (click) 174235 130445 13 58 0 0% 0 0 0
chunky_png (click) 384923 287043 88 1040 0 0% 0 0 0
discourse (click) 5926363 4401854 3197 25520 85 0% 2 0 0
erubi (click) 319515 242786 10 79 0 0% 0 0 0
erubi_rails (click) 1927387 1389125 300 1959 4 0% 0 0 0
fannkuchredux (click) 188123 141008 10 188 0 0% 0 0 0
lee (click) 378331 283802 58 622 0 0% 0 0 0
nbody (click) 183707 137646 12 158 0 0% 0 0 0
optcarrot (click) 514907 442895 207 3571 20 0% 0 0 0
rubykon (click) 319451 251719 144 1537 1 0% 0 0 0
30k_ifelse (click) 5563163 4350634 9265 57804 0 0% 0 0 0
30k_methods (click) 2178331 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) 172891 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.