YJIT Benchmarks

Details for Benchmarks at 2022-06-09 07:15:15

Overall YJIT is 37.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.1% 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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 151 75 151 20 151
mail 5 122 75 122 20 122
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 59 75 59 20 59
chunky_png 5 28 75 28 20 28
discourse 5 40 75 40 20 40
erubi 5 49 75 49 20 49
erubi_rails 5 980 75 980 20 980
fannkuchredux 5 15 50 15 20 15
lee 5 19 75 19 20 19
nbody 5 318 75 318 20 318
optcarrot 5 15 75 15 20 15
rubykon 5 15 30 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 30 22 20 22
cfunc_itself 5 394 75 394 20 394
fib 5 318 75 318 20 318
getivar 5 776 75 776 20 776
keyword_args 5 344 75 344 20 344
respond_to 5 96 75 96 20 96
setivar 5 1386 75 1386 20 1386
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) 1016091 755735 131 1253 0 0% 0 0 0
hexapdf (click) 1120923 879512 683 7756 10 0% 0 0 0
liquid-render (click) 509211 390210 150 1580 2 0% 0 0 0
mail (click) 917851 663223 375 5573 15 0% 0 0 0
psych-load (click) 339675 255149 68 457 1 0% 0 0 0
railsbench (click) 2619547 1916336 1436 9830 16 0% 0 0 0
binarytrees (click) 174235 130445 13 58 0 0% 0 0 0
chunky_png (click) 382043 285283 88 1012 0 0% 0 0 0
discourse (click) 5934811 4406721 3197 25596 85 0% 2 0 0
erubi (click) 319451 242786 10 79 0 0% 0 0 0
erubi_rails (click) 1929371 1390281 300 1978 4 0% 0 0 0
fannkuchredux (click) 188059 141143 10 188 0 0% 0 0 0
lee (click) 378395 283827 58 622 0 0% 0 0 0
nbody (click) 183707 137646 12 158 0 0% 0 0 0
optcarrot (click) 514715 442895 207 3571 20 0% 0 0 0
rubykon (click) 318427 251133 144 1529 1 0% 0 0 0
30k_ifelse (click) 5561883 4349908 9265 57804 0 0% 0 0 0
30k_methods (click) 2178395 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) 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.