YJIT Benchmarks

Details for Benchmarks at 2021-09-17 07:09:41

Overall YJIT is 21.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 14.2% 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 10 119 10 167
liquid-render 10 97 10 111 10 128
mail 10 118 10 119 10 126
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 41 10 69 10 57
fannkuchredux 10 10 10 10 10 10
jekyll 10 10 10 10 10 10
lee 10 10 10 13 10 15
nbody 10 173 10 330 10 268
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 10 483
fib 10 88 10 307 10 340
getivar 10 201 10 211 10 527
respond_to 10 78 10 90 10 114
setivar 10 289 10 265 10 444

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) 1075224 819840 185 1141 0 0% 0 0 0
liquid-render (click) 442450 354744 143 1265 92 7% 0 0 1
mail (click) 919960 704642 337 4691 125 2% 0 0 39
psych-load (click) 173415 136817 56 398 1 0% 0 0 0
railsbench (click) 5177900 3070908 1292 49112 40246 81% 0 0 26
binarytrees (click) 106490 81884 9 47 0 0% 0 0 0
fannkuchredux (click) 123578 96099 6 203 0 0% 0 0 0
jekyll (click) 2343960 1742146 335 9978 6513 65% 0 0 0
lee (click) 222823 168341 85 1042 111 10% 1 0 13
nbody (click) 116346 89863 8 149 0 0% 0 0 0
optcarrot (click) 642874 575194 286 5570 20 0% 0 0 0
30k_ifelse (click) 5527546 4883403 9261 57795 0 0% 0 0 0
30k_methods (click) 2099066 1808879 5780 19352 0 0% 0 0 0
cfunc_itself (click) 105850 80913 6 40 0 0% 0 0 0
fib (click) 104058 80240 6 29 0 0% 0 0 0
getivar (click) 106234 83327 6 56 0 0% 0 0 0
respond_to (click) 107642 82116 6 55 0 0% 0 0 0
setivar (click) 105850 81390 6 29 0 0% 0 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.