YJIT Benchmarks

Details for Benchmarks at 2021-09-24 07:09:51

Overall YJIT is 22.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 18.5% 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.

Want Raw Graphs and CSV?

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 10 126 10 115 10 167
liquid-render 10 97 10 110 10 126
mail 10 120 10 122 10 132
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 41 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 10 167 10 329 10 270
optcarrot 10 10 10 10 10 10
30k_ifelse 10 10 10 10 10 50
30k_methods 10 10 10 10 10 17
cfunc_itself 10 212 10 338 10 490
fib 10 82 10 307 10 374
getivar 10 175 10 211 10 528
respond_to 10 79 10 88 10 112
setivar 10 295 10 263 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) 1089114 834151 185 1145 0 0% 0 0 0
liquid-render (click) 445844 356928 143 1255 93 7% 0 0 1
mail (click) 955802 730099 337 4946 125 2% 0 0 39
psych-load (click) 176938 139263 56 408 1 0% 0 0 0
railsbench (click) 2513905 1922739 1293 9388 256 2% 0 0 26
binarytrees (click) 108093 83227 9 49 0 0% 0 0 0
fannkuchredux (click) 124541 97098 6 203 0 0% 0 0 0
jekyll (click) 1949914 1593996 336 3734 173 4% 0 0 0
lee (click) 225834 170584 85 1045 111 10% 1 0 13
nbody (click) 117501 90957 8 149 0 0% 0 0 0
optcarrot (click) 644093 576262 286 5570 20 0% 0 0 0
30k_ifelse (click) 5555517 4884008 9261 57795 0 0% 0 0 0
30k_methods (click) 2112061 1809825 5780 19352 0 0% 0 0 0
cfunc_itself (click) 106941 81912 6 40 0 0% 0 0 0
fib (click) 105405 81485 6 29 0 0% 0 0 0
getivar (click) 107197 84326 6 56 0 0% 0 0 0
respond_to (click) 108605 83062 6 55 0 0% 0 0 0
setivar (click) 107197 82635 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.