YJIT Benchmarks

Details for Benchmarks at 2022-07-01 20:14:30

Overall YJIT is 36.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.4% 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 5 157 75 157 20 157
mail 5 125 75 125 20 125
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 30 75 30 20 30
erubi 5 52 75 52 20 52
erubi_rails 5 985 75 985 20 985
fannkuchredux 5 15 57 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 34 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 448 75 448 20 448
fib 5 315 75 315 20 315
getivar 5 749 75 749 20 749
keyword_args 5 380 75 380 20 380
respond_to 5 101 75 101 20 101
setivar 5 1830 75 1830 20 1830
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) 1024923 761926 131 1239 0 0% 0 0 0
hexapdf (click) 1124059 881967 682 7756 9 0% 0 0 0
liquid-render (click) 509723 390725 150 1610 2 0% 0 0 0
mail (click) 918939 663160 375 5504 15 0% 0 0 0
psych-load (click) 344539 257996 68 457 1 0% 0 0 0
railsbench (click) 2635483 1926202 1436 9917 16 0% 0 0 0
binarytrees (click) 172955 129483 13 58 0 0% 0 0 0
chunky_png (click) 384987 286924 88 1002 0 0% 0 0 0
erubi (click) 322139 244721 10 79 0 0% 0 0 0
erubi_rails (click) 1943451 1397732 300 1999 4 0% 0 0 0
fannkuchredux (click) 186971 140181 10 188 0 0% 0 0 0
lee (click) 383451 287118 58 623 0 0% 0 0 0
nbody (click) 182427 136651 12 158 0 0% 0 0 0
optcarrot (click) 514395 442558 207 3585 20 0% 0 0 0
rubykon (click) 318875 251492 145 1547 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) 170971 127783 10 49 0 0% 0 0 0
fib (click) 169947 127687 10 38 0 0% 0 0 0
getivar (click) 171739 130231 10 65 0 0% 0 0 0
keyword_args (click) 172827 129049 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.