YJIT Benchmarks

Details for Benchmarks at 2021-09-25 07:09:42

Overall YJIT is 22.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 17.3% 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 10 119 10 166
liquid-render 10 97 10 112 10 126
mail 10 121 10 122 10 131
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 10 168 10 331 10 265
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 10 213 10 334 10 471
fib 10 91 10 308 10 375
getivar 10 218 10 210 10 529
respond_to 10 73 10 90 10 109
setivar 10 291 10 265 10 464

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) 1091354 835735 185 1158 0 0% 0 0 0
liquid-render (click) 442260 354411 143 1241 92 7% 0 0 1
mail (click) 975898 745826 337 5145 125 2% 0 0 39
psych-load (click) 176362 138869 56 408 1 0% 0 0 0
railsbench (click) 2508977 1918702 1293 9348 255 2% 0 0 26
binarytrees (click) 107901 83079 9 49 0 0% 0 0 0
fannkuchredux (click) 123965 96704 6 203 0 0% 0 0 0
jekyll (click) 1946906 1591867 336 3708 173 4% 0 0 0
lee (click) 225386 170353 85 1044 108 10% 1 0 13
nbody (click) 117309 90809 8 149 0 0% 0 0 0
optcarrot (click) 644157 576262 286 5570 20 0% 0 0 0
30k_ifelse (click) 5555581 4884008 9261 57795 0 0% 0 0 0
30k_methods (click) 2112061 1809825 5780 19352 0 0% 0 0 0
cfunc_itself (click) 106365 81518 6 40 0 0% 0 0 0
fib (click) 104829 81091 6 29 0 0% 0 0 0
getivar (click) 106813 84080 6 56 0 0% 0 0 0
respond_to (click) 108669 83062 6 55 0 0% 0 0 0
setivar (click) 106813 82389 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.