YJIT Benchmarks

Details for Benchmarks at 2021-11-04 07:10:06

Overall YJIT is 29.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 22.5% 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.

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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 10 127 10 117 10 168
hexapdf 10 10 10 10 10 10
liquid-render 10 106 10 112 10 165
mail 10 112 10 119 10 128
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 46 10 70 10 61
fannkuchredux 10 10 10 10 10 10
jekyll 10 10 10 10 10 10
lee 10 10 10 13 10 15
nbody 10 169 10 332 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 10 205 10 339 10 495
fib 10 93 10 308 10 375
getivar 10 223 10 211 10 530
keyword_args 10 77 10 97 10 415
respond_to 10 77 10 90 10 121
setivar 10 257 10 263 10 492

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) 1122394 875712 185 1166 0 0% 0 0 0
hexapdf (click) 1096372 917487 603 7985 625 7% 0 0 320
liquid-render (click) 473985 387894 143 1409 96 6% 0 0 1
mail (click) 842036 653410 339 5019 124 2% 0 0 39
psych-load (click) 187050 150933 56 409 1 0% 0 0 0
railsbench (click) 2613681 2039976 1295 9647 262 2% 0 0 26
binarytrees (click) 114730 91314 9 48 0 0% 0 0 0
fannkuchredux (click) 130794 104939 6 202 0 0% 0 0 0
jekyll (click) 2022132 1681002 336 3852 179 4% 0 0 0
lee (click) 237802 183640 85 1098 111 10% 1 0 13
nbody (click) 124138 99044 8 148 0 0% 0 0 0
optcarrot (click) 460650 431214 196 3566 20 0% 0 0 0
rubykon (click) 257386 222693 138 1514 1 0% 0 0 0
30k_ifelse (click) 5561770 4891849 9261 57794 0 0% 0 0 0
30k_methods (click) 2118314 1817666 5780 19351 0 0% 0 0 0
cfunc_itself (click) 113194 89753 6 39 0 0% 0 0 0
fib (click) 111402 89310 6 28 0 0% 0 0 0
getivar (click) 113770 92545 6 55 0 0% 0 0 0
keyword_args (click) 114026 90509 7 41 0 0% 0 0 0
respond_to (click) 115370 91267 6 54 0 0% 0 0 0
setivar (click) 113066 90230 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.