YJIT Benchmarks

Details for Benchmarks at 2021-09-11 07:09:52

Overall YJIT is 19.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 13.6% 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 10 121 10 168
liquid-render 10 96 10 109 10 123
mail 10 121 10 123 10 130
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 42 10 69 10 57
fannkuchredux 10 10 10 10 10 10
jekyll 10 10 10 10 10 10
lee 10 10 10 13 10 16
nbody 10 167 10 273 10 168
optcarrot 10 10 10 10 10 10
30k_ifelse 10 10 10 10 10 51
30k_methods 10 10 10 10 10 18
cfunc_itself 10 212 10 339 10 353
fib 10 90 10 306 10 333
getivar 10 203 10 213 10 528
respond_to 10 76 10 89 10 120
setivar 10 270 10 265 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) 1051942 808756 185 ? 0 0
liquid-render (click) 413984 333782 144 ? 0 0
mail (click) 765670 604830 337 ? 0 0
psych-load (click) 168690 132818 57 ? 0 0
railsbench (click) 5311290 3031178 1293 ? 0 0
binarytrees (click) 106117 82762 10 ? 0 0
fannkuchredux (click) 105925 82552 7 ? 0 0
jekyll (click) 2288742 1679416 335 ? 0 0
lee (click) 216498 166338 86 ? 1 0
nbody (click) 105605 82782 8 ? 0 0
optcarrot (click) 634053 575328 287 ? 0 0
30k_ifelse (click) 5561349 4769490 9262 ? 0 0
30k_methods (click) 2191557 1872592 5781 ? 0 0
cfunc_itself (click) 105029 81590 7 ? 0 0
fib (click) 103685 81158 7 ? 0 0
getivar (click) 105029 83466 7 ? 0 0
respond_to (click) 107333 83174 7 ? 0 0
setivar (click) 105157 82010 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.