YJIT Benchmarks

Details for Benchmarks at 2021-09-13 07:09:45

Overall YJIT is 21.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 17.1% 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 10 120 10 172
liquid-render 10 97 10 112 10 123
mail 10 120 10 123 10 132
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 10 165 10 273 10 167
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 10 337 10 478
fib 10 91 10 307 10 333
getivar 10 205 10 211 10 528
respond_to 10 76 10 89 10 122
setivar 10 271 10 263 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) 1055078 811078 185 ? 0 0
liquid-render (click) 410400 331084 144 ? 0 0
mail (click) 756838 596952 337 ? 0 0
psych-load (click) 169138 133306 57 ? 0 0
railsbench (click) 5311290 3031362 1293 ? 0 0
binarytrees (click) 106117 82762 10 ? 0 0
fannkuchredux (click) 105925 82552 7 ? 0 0
jekyll (click) 2287014 1678390 335 ? 0 0
lee (click) 216434 166338 86 ? 1 0
nbody (click) 105093 82426 8 ? 0 0
optcarrot (click) 634053 575328 287 ? 0 0
30k_ifelse (click) 5562053 4769962 9262 ? 0 0
30k_methods (click) 2191621 1872692 5781 ? 0 0
cfunc_itself (click) 105029 81590 7 ? 0 0
fib (click) 103301 80670 7 ? 0 0
getivar (click) 105221 83754 7 ? 0 0
respond_to (click) 107013 82786 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.