YJIT Benchmarks

Details for Benchmarks at 2021-09-15 07:09:40

Overall YJIT is 22.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 17.8% 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 YJIT warmups YJIT iters
activerecord 10 119 10 115 10 167
liquid-render 10 94 10 108 10 125
mail 10 119 10 120 10 122
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 41 10 67 10 55
fannkuchredux 10 10 10 10 10 10
jekyll 10 10 10 10 10 10
lee 10 10 10 13 10 15
nbody 10 166 10 331 10 270
optcarrot 10 10 10 10 10 10
30k_ifelse 10 10 10 10 10 49
30k_methods 10 10 10 10 10 18
cfunc_itself 10 201 10 337 10 484
fib 10 91 10 307 10 340
getivar 10 205 10 209 10 528
respond_to 10 78 10 89 10 113
setivar 10 283 10 265 10 443

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) 1073752 814856 185 ? 0 0
liquid-render (click) 434578 346800 144 ? 0 0
mail (click) 904344 689995 337 ? 0 0
psych-load (click) 173810 136345 57 ? 0 0
railsbench (click) 5165228 3052714 1292 ? 0 0
binarytrees (click) 106821 81412 10 ? 0 0
fannkuchredux (click) 107525 81796 7 ? 0 0
jekyll (click) 2323160 1717302 335 ? 0 0
lee (click) 223218 167806 86 ? 1 0
nbody (click) 116805 89486 9 ? 0 0
optcarrot (click) 640325 571689 287 ? 0 0
30k_ifelse (click) 5528069 4883026 9262 ? 0 0
30k_methods (click) 2099525 1808502 5781 ? 0 0
cfunc_itself (click) 106373 80536 7 ? 0 0
fib (click) 104581 79863 7 ? 0 0
getivar (click) 106309 82704 7 ? 0 0
respond_to (click) 108677 82080 7 ? 0 0
setivar (click) 106309 81013 7 ? 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.