YJIT Benchmarks

Details for Benchmarks at 2022-05-19 07:13:22

Overall YJIT is 29.4% 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 5 138 75 138 20 138
mail 5 107 75 107 20 107
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 48 75 48 20 48
erubi_rails 5 823 75 823 20 823
fannkuchredux 5 15 51 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 26 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 448 75 448 20 448
fib 5 319 75 319 20 319
getivar 5 763 75 763 20 763
keyword_args 5 379 75 379 20 379
respond_to 5 108 75 108 20 108
setivar 5 1857 75 1857 20 1857
str_concat 5 204 75 204 20 204

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) 1017755 756548 131 1258 0 0% 0 0 0
hexapdf (click) 1117403 877181 682 7752 9 0% 0 0 0
liquid-render (click) 504859 387407 150 1541 2 0% 0 0 0
mail (click) 896987 648938 375 5369 15 0% 0 0 0
psych-load (click) 339483 255149 68 457 1 0% 0 0 0
railsbench (click) 2639771 1927700 1436 9838 16 0% 0 0 0
binarytrees (click) 173275 129880 13 58 0 0% 0 0 0
chunky_png (click) 379419 283721 88 995 0 0% 0 0 0
discourse (click) 5939099 4407359 3197 25394 84 0% 2 0 0
erubi (click) 319323 242761 10 79 0 0% 0 0 0
erubi_rails (click) 1948443 1401647 300 1986 4 0% 0 0 0
fannkuchredux (click) 187163 140443 10 188 0 0% 0 0 0
lee (click) 378075 283734 58 622 0 0% 0 0 0
nbody (click) 182747 137081 12 158 0 0% 0 0 0
optcarrot (click) 513947 442330 207 3571 20 0% 0 0 0
rubykon (click) 318363 251021 144 1536 1 0% 0 0 0
30k_ifelse (click) 5562331 4350204 9265 57804 0 0% 0 0 0
30k_methods (click) 2177499 1658666 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171739 128509 10 49 0 0% 0 0 0
fib (click) 170267 128117 10 38 0 0% 0 0 0
getivar (click) 172059 130628 10 65 0 0% 0 0 0
keyword_args (click) 172635 129150 11 51 0 0% 0 0 0
respond_to (click) 173915 129963 10 64 0 0% 0 0 0
setivar (click) 172123 129152 10 38 0 0% 0 0 0
str_concat (click) 171995 129472 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.