YJIT Benchmarks

Details for Benchmarks at 2022-07-08 20:14:37

Overall YJIT is 36.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.9% 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 5 190 75 190 20 190
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 65 75 65 20 65
chunky_png 5 30 75 30 20 30
erubi 5 52 75 52 20 52
erubi_rails 5 1000 75 1000 20 1000
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 33 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 21 29 21 20 21
cfunc_itself 5 448 75 448 20 448
fib 5 314 75 314 20 314
getivar 5 767 75 767 20 767
keyword_args 5 373 75 373 20 373
respond_to 5 104 75 104 20 104
setivar 5 1858 75 1858 20 1858
str_concat 5 367 75 367 20 367

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) 1027099 763086 131 1242 0 0% 0 0 0
hexapdf (click) 1123291 881337 682 7752 10 0% 0 0 0
liquid-render (click) 509275 390272 150 1612 2 0% 0 0 0
mail (click) 905883 653289 374 5384 15 0% 0 0 0
psych-load (click) 345179 258448 68 462 1 0% 0 0 0
railsbench (click) 2632155 1924519 1436 9884 16 0% 0 0 0
binarytrees (click) 172955 129450 13 58 0 0% 0 0 0
chunky_png (click) 392155 290936 88 1071 0 0% 0 0 0
erubi (click) 321691 244144 10 79 0 0% 0 0 0
erubi_rails (click) 1941467 1396608 300 1970 4 0% 0 0 0
fannkuchredux (click) 186779 140013 10 188 0 0% 0 0 0
lee (click) 383195 286887 58 623 0 0% 0 0 0
nbody (click) 182427 136651 12 158 0 0% 0 0 0
optcarrot (click) 514523 442671 207 3585 20 0% 0 0 0
rubykon (click) 317083 250042 144 1530 1 0% 0 0 0
30k_ifelse (click) 5562523 4350103 9265 57804 0 0% 0 0 0
30k_methods (click) 2177691 1658565 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171995 128408 10 49 0 0% 0 0 0
fib (click) 169563 127504 10 38 0 0% 0 0 0
getivar (click) 171227 129902 10 65 0 0% 0 0 0
keyword_args (click) 172827 129049 11 51 0 0% 0 0 0
respond_to (click) 174107 129862 10 64 0 0% 0 0 0
setivar (click) 172187 129051 10 38 0 0% 0 0 0
str_concat (click) 171739 129210 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.