YJIT Benchmarks

Details for Benchmarks at 2022-06-07 07:13:18

Overall YJIT is 31.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 25.2% 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 5 136 75 136 20 136
mail 5 108 75 108 20 108
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 29 75 29 20 29
discourse 5 32 75 32 20 32
erubi 5 44 75 44 20 44
erubi_rails 5 784 75 784 20 784
fannkuchredux 5 15 74 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 25 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 424 75 424 20 424
fib 5 320 75 320 20 320
getivar 5 758 75 758 20 758
keyword_args 5 375 75 375 20 375
respond_to 5 106 75 106 20 106
setivar 5 1856 75 1856 20 1856
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) 1015771 755230 131 1255 0 0% 0 0 0
hexapdf (click) 1121435 879635 682 7759 9 0% 0 0 0
liquid-render (click) 505435 388046 150 1559 2 0% 0 0 0
mail (click) 933915 675215 374 5753 15 0% 0 0 0
psych-load (click) 339867 255608 68 457 1 0% 0 0 0
railsbench (click) 2628379 1920936 1436 9879 16 0% 0 0 0
binarytrees (click) 174235 130445 13 58 0 0% 0 0 0
chunky_png (click) 378267 282887 88 976 0 0% 0 0 0
discourse (click) 5932315 4406542 3196 25439 85 0% 2 0 0
erubi (click) 319515 242786 10 79 0 0% 0 0 0
erubi_rails (click) 1944539 1401625 300 1999 4 0% 0 0 0
fannkuchredux (click) 186843 140282 10 188 0 0% 0 0 0
lee (click) 378139 283684 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) 317851 250743 144 1535 1 0% 0 0 0
30k_ifelse (click) 5563163 4350634 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659231 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172635 129074 10 49 0 0% 0 0 0
fib (click) 171227 128682 10 38 0 0% 0 0 0
getivar (click) 171611 130332 10 65 0 0% 0 0 0
keyword_args (click) 172187 128854 11 51 0 0% 0 0 0
respond_to (click) 173467 129667 10 64 0 0% 0 0 0
setivar (click) 172955 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.