YJIT Benchmarks

Details for Benchmarks at 2021-09-09 19:09:48

Overall YJIT is 21.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 19.8% 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 10 122 10 116 10 166
liquid-render 10 96 10 111 10 122
mail 10 121 10 123 10 135
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 42 10 69 10 58
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 10 168
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 10 211 10 339 10 464
fib 10 91 10 309 10 334
getivar 10 204 10 211 10 528
respond_to 10 78 10 82 10 122
setivar 10 270 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) 1054438 935404 185 ? 0 0
liquid-render (click) 413344 381430 144 ? 0 0
mail (click) 763046 696290 337 ? 0 0
psych-load (click) 169458 153956 57 ? 0 0
railsbench (click) 5309306 3335072 1293 ? 0 0
binarytrees (click) 106245 95616 10 ? 0 0
fannkuchredux (click) 106245 95636 7 ? 0 0
jekyll (click) 2290790 1910952 335 ? 0 0
lee (click) 216114 196280 86 ? 1 0
nbody (click) 105221 95048 8 ? 0 0
optcarrot (click) 634181 643232 287 ? 0 0
30k_ifelse (click) 5561669 5508330 9262 ? 0 0
30k_methods (click) 2191557 2278122 5781 ? 0 0
cfunc_itself (click) 105157 94676 7 ? 0 0
fib (click) 103749 93680 7 ? 0 0
getivar (click) 105733 96574 7 ? 0 0
respond_to (click) 107013 96062 7 ? 0 0
setivar (click) 105477 94804 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.