YJIT Benchmarks

Details for Benchmarks at 2022-06-26 20:15:19

Overall YJIT is 35.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.1% 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 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 155 75 155 20 155
mail 5 123 75 123 20 123
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 29 75 29 20 29
erubi 5 50 75 50 20 50
erubi_rails 5 966 75 966 20 966
fannkuchredux 5 15 58 15 20 15
lee 5 21 75 21 20 21
nbody 5 273 75 273 20 273
optcarrot 5 15 75 15 20 15
rubykon 5 15 33 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 443 75 443 20 443
fib 5 315 75 315 20 315
getivar 5 764 75 764 20 764
keyword_args 5 378 75 378 20 378
respond_to 5 108 75 108 20 108
setivar 5 1852 75 1852 20 1852
str_concat 5 196 75 196 20 196

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) 1015963 755675 131 1272 0 0% 0 0 0
hexapdf (click) 1120091 879068 682 7757 10 0% 0 0 0
liquid-render (click) 512731 392786 150 1628 2 0% 0 0 0
mail (click) 931099 672619 374 5714 15 0% 0 0 0
psych-load (click) 338139 254093 68 462 1 0% 0 0 0
railsbench (click) 2616667 1914712 1436 9824 16 0% 0 0 0
binarytrees (click) 172635 129504 13 58 0 0% 0 0 0
chunky_png (click) 383963 286316 88 1034 0 0% 0 0 0
erubi (click) 316315 240498 10 79 0 0% 0 0 0
erubi_rails (click) 1928283 1389740 300 1979 4 0% 0 0 0
fannkuchredux (click) 186651 140202 10 188 0 0% 0 0 0
lee (click) 377691 283393 58 622 0 0% 0 0 0
nbody (click) 182619 137001 12 158 0 0% 0 0 0
optcarrot (click) 513243 441819 207 3571 20 0% 0 0 0
rubykon (click) 318747 251624 144 1545 1 0% 0 0 0
30k_ifelse (click) 5561691 4349828 9265 57804 0 0% 0 0 0
30k_methods (click) 2177371 1658586 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171163 128133 10 49 0 0% 0 0 0
fib (click) 169627 127741 10 38 0 0% 0 0 0
getivar (click) 171931 130548 10 65 0 0% 0 0 0
keyword_args (click) 171995 128774 11 51 0 0% 0 0 0
respond_to (click) 173787 129883 10 64 0 0% 0 0 0
setivar (click) 171867 129072 10 38 0 0% 0 0 0
str_concat (click) 171867 129392 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.