YJIT Benchmarks

Details for Benchmarks at 2021-11-04 19:10:28

Overall YJIT is 28.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.0% 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 10 125 10 117 10 168
hexapdf 10 10 10 10 10 10
liquid-render 10 104 10 110 10 160
mail 10 112 10 120 10 124
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 46 10 69 10 59
fannkuchredux 10 10 10 10 10 10
jekyll 10 10 10 10 10 10
lee 10 10 10 14 10 15
nbody 10 170 10 324 10 256
optcarrot 10 10 10 10 10 10
rubykon 10 10 10 10 10 10
30k_ifelse 10 10 10 10 10 51
30k_methods 10 10 10 10 10 17
cfunc_itself 10 210 10 328 10 496
fib 10 93 10 308 10 375
getivar 10 197 10 211 10 530
keyword_args 10 77 10 97 10 425
respond_to 10 77 10 87 10 121
setivar 10 255 10 262 10 484

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) 977652 768371 184 1149 0 0% 0 0 0
hexapdf (click) 1097716 918215 604 7992 625 7% 0 0 320
liquid-render (click) 474433 388508 143 1426 95 6% 0 0 1
mail (click) 863924 670729 339 5228 124 2% 0 0 39
psych-load (click) 299937 239813 57 416 1 0% 0 0 0
railsbench (click) 2607665 2035983 1295 9614 262 2% 0 0 26
binarytrees (click) 114730 91314 9 48 0 0% 0 0 0
fannkuchredux (click) 130218 104545 6 202 0 0% 0 0 0
jekyll (click) 1899636 1579540 336 3845 177 4% 0 0 0
lee (click) 348916 273372 44 566 70 12% 0 0 12
nbody (click) 123818 98800 8 148 0 0% 0 0 0
optcarrot (click) 460202 430968 196 3566 20 0% 0 0 0
rubykon (click) 258474 223816 138 1529 1 0% 0 0 0
30k_ifelse (click) 5561770 4891849 9261 57794 0 0% 0 0 0
30k_methods (click) 2118890 1818060 5780 19351 0 0% 0 0 0
cfunc_itself (click) 112618 89359 6 39 0 0% 0 0 0
fib (click) 111658 89326 6 28 0 0% 0 0 0
getivar (click) 113706 92317 6 55 0 0% 0 0 0
keyword_args (click) 113450 90115 7 41 0 0% 0 0 0
respond_to (click) 114858 90903 6 54 0 0% 0 0 0
setivar (click) 113450 90476 6 28 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.