YJIT Benchmarks

Details for Benchmarks at 2022-07-14 20:14:27

Overall YJIT is 35.6% 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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 154 75 154 20 154
mail 5 126 75 126 20 126
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 53 75 53 20 53
erubi_rails 5 937 75 937 20 937
fannkuchredux 5 15 56 15 20 15
lee 5 21 75 21 20 21
nbody 5 273 75 273 20 273
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 5 443 75 443 20 443
fib 5 314 75 314 20 314
getivar 5 765 75 765 20 765
keyword_args 5 372 75 372 20 372
respond_to 5 101 75 101 20 101
setivar 5 1829 75 1829 20 1829
str_concat 5 376 75 376 20 376

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) 1029019 764297 131 1262 0 0% 0 0 0
hexapdf (click) 1125275 882601 682 7768 9 0% 0 0 0
liquid-render (click) 512347 392459 150 1638 2 0% 0 0 0
mail (click) 938971 677926 374 5715 15 0% 0 0 0
psych-load (click) 344539 257996 68 457 1 0% 0 0 0
railsbench (click) 2636507 1927490 1436 9922 16 0% 0 0 0
binarytrees (click) 172955 129450 13 58 0 0% 0 0 0
chunky_png (click) 380187 283203 88 989 0 0% 0 0 0
erubi (click) 321691 244169 10 79 0 0% 0 0 0
erubi_rails (click) 1941019 1396149 300 1969 4 0% 0 0 0
fannkuchredux (click) 186971 140148 10 188 0 0% 0 0 0
lee (click) 382299 286124 58 623 0 0% 0 0 0
nbody (click) 182427 136651 12 158 0 0% 0 0 0
optcarrot (click) 513883 442262 207 3585 20 0% 0 0 0
rubykon (click) 316315 249530 144 1523 1 0% 0 0 0
30k_ifelse (click) 5562011 4349774 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) 169947 127720 10 38 0 0% 0 0 0
getivar (click) 171739 130198 10 65 0 0% 0 0 0
keyword_args (click) 172315 128720 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) 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.