YJIT Benchmarks

Details for Benchmarks at 2021-10-22 07:09:54

Overall YJIT is 27.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 16.9% 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 10 129 10 116 10 176
hexapdf 10 10 10 10 10 10
liquid-render 10 105 10 113 10 146
mail 10 115 10 124 10 132
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 44 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 10 176 10 330 10 252
optcarrot 10 10 10 10 10 10
30k_ifelse 10 10 10 10 10 52
30k_methods 10 10 10 10 10 17
cfunc_itself 10 207 10 338 10 503
fib 10 94 10 306 10 373
getivar 10 212 10 211 10 529
keyword_args 10 73 10 97 10 428
respond_to 10 76 10 88 10 109
setivar 10 272 10 265 10 460

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) 1111578 865968 185 1155 0 0% 0 0 0
hexapdf (click) 1065268 891533 603 7814 619 7% 0 0 320
liquid-render (click) 455252 372855 143 1248 94 7% 0 0 1
mail (click) 979290 757968 337 4986 129 2% 0 0 39
psych-load (click) 185386 149557 56 409 1 0% 0 0 0
railsbench (click) 2566577 2000036 1293 9608 262 2% 0 0 26
binarytrees (click) 113853 90204 9 49 0 0% 0 0 0
fannkuchredux (click) 129533 103583 6 203 0 0% 0 0 0
jekyll (click) 1961370 1631484 336 3750 174 4% 0 0 0
lee (click) 235306 181797 85 1091 114 10% 1 0 13
nbody (click) 123261 97934 8 149 0 0% 0 0 0
optcarrot (click) 459453 429726 196 3567 20 0% 0 0 0
30k_ifelse (click) 5561149 4890755 9261 57795 0 0% 0 0 0
30k_methods (click) 2117693 1816572 5780 19352 0 0% 0 0 0
cfunc_itself (click) 112317 88643 6 40 0 0% 0 0 0
fib (click) 110397 87970 6 29 0 0% 0 0 0
getivar (click) 112189 90811 6 56 0 0% 0 0 0
keyword_args (click) 112829 89021 7 42 0 0% 0 0 0
respond_to (click) 114621 90187 6 55 0 0% 0 0 0
setivar (click) 112253 88988 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.