YJIT Benchmarks

Details for Benchmarks at 2022-11-22 20:10:13

Overall YJIT is 34.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.9% 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.

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 YJIT warmups YJIT iters
activerecord 5 208 5 208
hexapdf 5 15 5 15
liquid-render 5 154 5 154
mail 5 123 5 123
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 276 5 276
binarytrees 5 84 5 84
chunky_png 5 32 5 32
erubi 5 67 5 67
erubi_rails 5 1133 5 1133
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 22 5 22
nbody 5 229 5 229
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 47 5 47
30k_methods 5 20 5 20
cfunc_itself 5 489 5 489
fib 5 325 5 325
getivar 5 427 5 427
keyword_args 5 385 5 385
respond_to 5 690 5 690
setivar 5 394 5 394
str_concat 5 446 5 446

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) 2307072 2305056 25 394 6 1% 0 0 0
hexapdf (click) 1755332 1754330 819 10154 218 2% 0 0 0
liquid-render (click) 588596 586441 156 1833 34 1% 0 0 0
mail (click) 1325402 1323510 373 5103 176 3% 0 0 0
psych-load (click) 786965 786655 70 633 19 3% 0 0 0
railsbench (click) 5611871 5610886 1779 13895 484 3% 0 0 0
ruby-lsp (click) 5429861 5429194 6425 40558 1520 3% 14104 0 0
binarytrees (click) 136253 134679 16 139 4 2% 0 0 0
chunky_png (click) 816702 814873 89 1173 31 2% 0 0 0
erubi (click) 742219 740797 13 147 4 2% 0 0 0
erubi_rails (click) 4729887 4728384 329 2688 111 4% 0 0 0
etanni (click) 135436 134074 13 107 4 3% 0 0 0
fannkuchredux (click) 146721 144465 13 269 4 1% 0 0 0
lee (click) 824361 822800 79 804 25 3% 0 0 0
nbody (click) 137475 135346 15 216 6 2% 0 0 0
optcarrot (click) 557446 556977 203 4133 93 2% 0 0 0
rubykon (click) 280173 279635 146 1649 32 1% 0 0 0
30k_ifelse (click) 5404118 5403616 9268 57196 4 0% 0 0 0
30k_methods (click) 2087220 2084813 5787 19425 4 0% 0 0 0
cfunc_itself (click) 132582 132096 13 122 4 3% 0 0 0
fib (click) 131127 131044 13 111 4 3% 0 0 0
getivar (click) 132978 132287 13 138 4 2% 0 0 0
keyword_args (click) 133371 132581 14 124 4 3% 0 0 0
respond_to (click) 134658 133524 13 138 5 3% 0 0 0
setivar (click) 133653 132749 13 111 4 3% 0 0 0
str_concat (click) 134100 132917 15 137 6 4% 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.