YJIT Benchmarks

Details for Benchmarks at 2021-09-11 19:09:09

Overall YJIT is 21.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 17.7% 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.

Want Raw Graphs and CSV?

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 10 119 10 164
liquid-render 10 93 10 107 10 123
mail 10 117 10 120 10 130
psych-load 10 10 10 10 10 10
railsbench 10 10 10 10 10 10
binarytrees 10 42 10 69 10 56
fannkuchredux 10 10 10 10 10 10
jekyll 10 10 10 10 10 10
lee 10 10 10 13 10 16
nbody 10 166 10 274 10 169
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 10 212 10 305 10 474
fib 10 90 10 305 10 333
getivar 10 205 10 212 10 527
respond_to 10 80 10 90 10 121
setivar 10 270 10 265 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) 1052262 809018 185 ? 0 0
liquid-render (click) 413280 333084 144 ? 0 0
mail (click) 754598 595102 337 ? 0 0
psych-load (click) 168818 132918 57 ? 0 0
railsbench (click) 5308282 3028434 1293 ? 0 0
binarytrees (click) 106117 82762 10 ? 0 0
fannkuchredux (click) 106245 82940 7 ? 0 0
jekyll (click) 2287782 1679074 335 ? 0 0
lee (click) 216434 166338 86 ? 1 0
nbody (click) 104773 82038 8 ? 0 0
optcarrot (click) 634501 575816 287 ? 0 0
30k_ifelse (click) 5561413 4769478 9262 ? 0 0
30k_methods (click) 2191557 1872592 5781 ? 0 0
cfunc_itself (click) 105029 81590 7 ? 0 0
fib (click) 103621 81058 7 ? 0 0
getivar (click) 105285 83854 7 ? 0 0
respond_to (click) 107333 83174 7 ? 0 0
setivar (click) 105029 81910 7 ? 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.