YJIT Benchmarks

Details for Benchmarks at 2021-09-07 07:09:44

Overall YJIT is 22.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 15.7% 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 10 123 10 118 10 171
liquid-render 10 99 10 112 10 123
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 45 10 66 10 56
fannkuchredux 10 10 10 10 10 10
jekyll 10 10 10 10 10 10
lee 10 10 10 13 10 16
nbody 10 164 10 273 10 165
optcarrot 10 10 10 10 10 10
30k_ifelse 10 10 10 10 10 52
30k_methods 10 10 10 10 10 18
cfunc_itself 10 213 10 338 10 472
fib 10 80 10 308 10 334
getivar 10 212 10 209 10 529
respond_to 10 79 10 91 10 116
setivar 10 272 10 262 10 462

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) 1027558 901072 185 ? 0 0
liquid-render (click) 402912 368162 144 ? 0 0
psych-load (click) 166450 149920 57 ? 0 0
railsbench (click) 5230522 3238668 1291 ? 0 0
binarytrees (click) 105861 94644 10 ? 0 0
fannkuchredux (click) 105733 94638 7 ? 0 0
jekyll (click) 2233766 1839672 335 ? 0 0
lee (click) 208818 188122 86 ? 1 0
nbody (click) 105093 94394 8 ? 0 0
optcarrot (click) 631045 639098 287 ? 0 0
30k_ifelse (click) 5560773 5507278 9262 ? 0 0
30k_methods (click) 2191173 2277254 5781 ? 0 0
cfunc_itself (click) 104517 93608 7 ? 0 0
fib (click) 103109 92612 7 ? 0 0
getivar (click) 104837 95292 7 ? 0 0
respond_to (click) 106821 95482 7 ? 0 0
setivar (click) 104965 93836 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.