YJIT Benchmarks

Details for Benchmarks at 2022-06-28 20:14:29

Overall YJIT is 35.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.3% 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 5 123 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 52 75 52 20 52
erubi_rails 5 988 75 988 20 988
fannkuchredux 5 15 75 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 33 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 418 75 418 20 418
fib 5 314 75 314 20 314
getivar 5 763 75 763 20 763
keyword_args 5 378 75 378 20 378
respond_to 5 103 75 103 20 103
setivar 5 1851 75 1851 20 1851
str_concat 5 357 75 357 20 357

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) 1013147 753630 131 1253 0 0% 0 0 0
hexapdf (click) 1118043 877996 682 7751 10 0% 0 0 0
liquid-render (click) 515419 395242 150 1675 2 0% 0 0 0
mail (click) 889115 642026 374 5311 15 0% 0 0 0
psych-load (click) 338779 254215 68 457 1 0% 0 0 0
railsbench (click) 2619739 1916396 1436 9880 16 0% 0 0 0
binarytrees (click) 173467 129779 13 58 0 0% 0 0 0
chunky_png (click) 383067 285321 88 1032 0 0% 0 0 0
erubi (click) 315931 240338 10 79 0 0% 0 0 0
erubi_rails (click) 1926619 1387727 300 1993 4 0% 0 0 0
fannkuchredux (click) 187099 140261 10 188 0 0% 0 0 0
lee (click) 377563 283032 58 622 0 0% 0 0 0
nbody (click) 182939 136980 12 158 0 0% 0 0 0
optcarrot (click) 513627 441900 207 3571 20 0% 0 0 0
rubykon (click) 317787 250509 144 1533 1 0% 0 0 0
30k_ifelse (click) 5562523 4350103 9265 57804 0 0% 0 0 0
30k_methods (click) 2177179 1658236 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171483 128079 10 49 0 0% 0 0 0
fib (click) 170459 128016 10 38 0 0% 0 0 0
getivar (click) 171739 130198 10 65 0 0% 0 0 0
keyword_args (click) 172443 128833 11 51 0 0% 0 0 0
respond_to (click) 173595 129533 10 64 0 0% 0 0 0
setivar (click) 172187 129051 10 38 0 0% 0 0 0
str_concat (click) 171611 129097 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.