YJIT Benchmarks

Details for Benchmarks at 2021-09-09 07:11:18

Overall YJIT is 19.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 15.5% 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 10 124 10 119 10 167
liquid-render 10 98 10 113 10 122
mail 10 120 10 123 10 133
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 45 10 68 10 60
fannkuchredux 10 10 10 10 10 10
jekyll 10 10 10 10 10 10
lee 10 10 10 13 10 15
nbody 10 164 10 273 10 165
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 10 212 10 339 10 478
fib 10 90 10 308 10 333
getivar 10 211 10 211 10 528
respond_to 10 79 10 90 10 120
setivar 10 273 10 265 10 465

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) 1024038 899882 185 ? 0 0
liquid-render (click) 409184 374538 144 ? 0 0
mail (click) 734246 663926 337 ? 0 0
psych-load (click) 166706 150606 57 ? 0 0
railsbench (click) 5227706 3239364 1291 ? 0 0
binarytrees (click) 105605 94668 10 ? 0 0
fannkuchredux (click) 105541 94732 7 ? 0 0
jekyll (click) 2217830 1829730 335 ? 0 0
lee (click) 208562 188178 86 ? 1 0
nbody (click) 104133 93686 8 ? 0 0
optcarrot (click) 630469 638704 287 ? 0 0
30k_ifelse (click) 5560645 5507372 9262 ? 0 0
30k_methods (click) 2190981 2277348 5781 ? 0 0
cfunc_itself (click) 104389 93702 7 ? 0 0
fib (click) 102725 92418 7 ? 0 0
getivar (click) 104261 94898 7 ? 0 0
respond_to (click) 106629 95576 7 ? 0 0
setivar (click) 104773 93930 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.