YJIT Benchmarks

Details for Benchmarks at 2021-11-24 07:10:41

Overall YJIT is 29.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 19.8% 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 MJIT3.0 warmups MJIT3.0 iters MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 15 20 15 75 15 20 15
hexapdf 5 15 20 15 20 15
liquid-render 5 15 20 15 75 15 20 15
mail 5 15 20 15 75 15 20 15
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 15 20 15 75 15 20 15
erubi 5 15 20 15 75 15 20 15
erubi_rails 5 15 20 15 75 15 20 15
fannkuchredux 5 15 20 15 54 15 20 15
jekyll 5 15 20 15 35 15 20 15
lee 5 15 20 15 75 15 20 15
nbody 5 15 20 15 75 15 20 15
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 43 15 20 15
30k_ifelse 5 15 20 15 75 15 20 15
30k_methods 5 15 20 15 42 15 20 15
cfunc_itself 5 15 20 15 75 15 20 15
fib 5 15 20 15 75 15 20 15
getivar 5 15 20 15 75 15 20 15
keyword_args 5 15 20 15 75 15 20 15
respond_to 5 15 20 15 75 15 20 15
setivar 5 15 20 15 75 15 20 15

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) 954922 717934 184 1144 0 0% 0 0 0
hexapdf (click) 1074602 856206 596 7957 615 7% 0 0 320
liquid-render (click) 468151 363967 143 1439 95 6% 0 0 1
mail (click) 780522 576723 324 4551 124 2% 0 0 39
psych-load (click) 293729 228188 57 423 1 0% 0 0 0
railsbench (click) 2561570 1910564 1293 9660 263 2% 0 0 26
binarytrees (click) 112293 85392 9 48 0 0% 0 0 0
erubi (click) 272417 211616 8 35 0 0% 0 0 0
erubi_rails (click) 2425122 1732260 260 1848 17 0% 0 0 3
fannkuchredux (click) 128293 97402 6 202 0 0% 0 0 0
jekyll (click) 1884074 1498017 336 3948 179 4% 0 0 0
lee (click) 297898 230552 44 226 54 23% 0 0 12
nbody (click) 121701 92363 8 148 0 0% 0 0 0
optcarrot (click) 450661 391769 196 3566 20 0% 0 0 0
rubykon (click) 253157 203458 138 1520 2 0% 0 0 0
30k_ifelse (click) 5501605 4305849 9261 57794 0 0% 0 0 0
30k_methods (click) 2116581 1614178 5780 19351 0 0% 0 0 0
cfunc_itself (click) 110885 84021 6 39 0 0% 0 0 0
fib (click) 109861 83978 6 28 0 0% 0 0 0
getivar (click) 111589 86489 6 55 0 0% 0 0 0
keyword_args (click) 112229 85011 7 41 0 0% 0 0 0
respond_to (click) 112997 85475 6 54 0 0% 0 0 0
setivar (click) 111013 84664 6 28 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.