YJIT Benchmarks

Details for Benchmarks at 2021-09-10 07:10:16

Overall YJIT is 20.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 16.0% 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 10 121 10 119 10 167
liquid-render 10 99 10 108 10 125
mail 10 120 10 118 10 131
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 42 10 68 10 57
fannkuchredux 10 10 10 10 10 10
jekyll 10 10 10 10 10 10
lee 10 10 10 13 10 16
nbody 10 166 10 273 10 167
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 10 205 10 337 10 477
fib 10 91 10 307 10 333
getivar 10 205 10 211 10 528
respond_to 10 77 10 89 10 121
setivar 10 271 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) 1054246 935354 185 ? 0 0
liquid-render (click) 413472 381656 144 ? 0 0
mail (click) 754470 687760 337 ? 0 0
psych-load (click) 168818 153254 57 ? 0 0
railsbench (click) 5309498 3335146 1293 ? 0 0
binarytrees (click) 106245 95616 10 ? 0 0
fannkuchredux (click) 105925 95248 7 ? 0 0
jekyll (click) 2291558 1911990 335 ? 0 0
lee (click) 216242 196380 86 ? 1 0
nbody (click) 105221 95048 8 ? 0 0
optcarrot (click) 634885 643934 287 ? 0 0
30k_ifelse (click) 5561221 5508046 9262 ? 0 0
30k_methods (click) 2191237 2277734 5781 ? 0 0
cfunc_itself (click) 105541 94990 7 ? 0 0
fib (click) 103429 93292 7 ? 0 0
getivar (click) 105349 96260 7 ? 0 0
respond_to (click) 107333 96450 7 ? 0 0
setivar (click) 105861 95118 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.