YJIT Benchmarks

Details for Benchmarks at 2021-11-12 19:15:44

Overall YJIT is 27.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 18.4% 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 10 126 10 115 10 176
hexapdf 10 10 10 10 10 10
liquid-render 10 106 10 113 10 162
mail 10 115 10 123 10 128
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 45 10 75 10 61
fannkuchredux 10 10 10 10 10 10
jekyll 10 10 10 10 10 10
lee 10 10 10 12 10 16
nbody 10 171 10 316 10 255
optcarrot 10 10 10 10 10 10
rubykon 10 10 10 10 10 10
30k_ifelse 10 10 10 10 10 53
30k_methods 10 10 10 10 10 17
cfunc_itself 10 201 10 327 10 502
fib 10 93 10 320 10 375
getivar 10 219 10 206 10 536
keyword_args 10 77 10 99 10 429
respond_to 10 77 10 98 10 120
setivar 10 293 10 284 10 462

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) 968170 678024 184 1165 0 0% 0 0 0
hexapdf (click) 1082922 809732 596 8014 614 7% 0 0 320
liquid-render (click) 467447 341089 143 1428 95 6% 0 0 1
mail (click) 858602 590304 339 5258 124 2% 0 0 39
psych-load (click) 296545 211258 57 423 1 0% 0 0 0
railsbench (click) 2587746 1798175 1295 9666 264 2% 0 0 26
binarytrees (click) 112933 80392 9 48 0 0% 0 0 0
fannkuchredux (click) 129317 92618 6 202 0 0% 0 0 0
jekyll (click) 1885994 1392608 336 3933 179 4% 0 0 0
lee (click) 345130 239795 44 566 70 12% 0 0 12
nbody (click) 122469 87422 8 148 0 0% 0 0 0
optcarrot (click) 451301 380927 196 3566 20 0% 0 0 0
rubykon (click) 254821 196933 139 1524 1 0% 0 0 0
30k_ifelse (click) 5502501 4300932 9261 57794 0 0% 0 0 0
30k_methods (click) 2117541 1609394 5780 19351 0 0% 0 0 0
cfunc_itself (click) 111909 79237 6 39 0 0% 0 0 0
fib (click) 110309 78845 6 28 0 0% 0 0 0
getivar (click) 112101 81356 6 55 0 0% 0 0 0
keyword_args (click) 112741 79878 7 41 0 0% 0 0 0
respond_to (click) 114021 80571 6 54 0 0% 0 0 0
setivar (click) 112037 79880 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.