YJIT Benchmarks

Details for Benchmarks at 2022-10-16 20:10:41

Overall YJIT is 36.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 25.5% 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.

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 5 201 5 201
hexapdf 5 15 5 15
liquid-render 5 177 5 177
mail 5 128 5 128
psych-load 5 15 5 15
railsbench 5 15 5 15
binarytrees 5 86 5 86
chunky_png 5 31 5 31
erubi 5 67 5 67
erubi_rails 5 1075 5 1075
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 20 5 20
nbody 5 244 5 244
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 57 5 57
30k_methods 5 24 5 24
cfunc_itself 5 479 5 479
fib 5 327 5 327
getivar 5 426 5 426
keyword_args 5 386 5 386
respond_to 5 706 5 706
setivar 5 424 5 424
str_concat 5 411 5 411

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) 2481681 1474044 23 283 6 2% 0 0 0
hexapdf (click) 1899091 1297220 817 9613 189 1% 0 0 0
liquid-render (click) 738323 483692 154 1737 34 1% 0 0 0
mail (click) 1486803 955376 371 4932 176 3% 0 0 0
psych-load (click) 950355 610844 68 490 19 3% 0 0 0
railsbench (click) 5423377 3313737 1777 12844 475 3% 0 0 0
binarytrees (click) 319187 198933 14 70 4 5% 0 0 0
chunky_png (click) 970003 629124 87 1049 31 2% 0 0 0
erubi (click) 899731 584143 11 78 4 5% 0 0 0
erubi_rails (click) 4485649 2658865 327 2471 107 4% 0 0 0
etanni (click) 318291 197527 11 38 4 10% 0 0 0
fannkuchredux (click) 330003 206998 11 200 4 2% 0 0 0
lee (click) 978515 636929 77 746 25 3% 0 0 0
nbody (click) 332499 207741 13 179 6 3% 0 0 0
optcarrot (click) 755155 542823 201 4001 93 2% 0 0 0
rubykon (click) 468883 312428 144 1555 31 1% 0 0 0
30k_ifelse (click) 5603155 4343885 9266 57127 4 0% 0 0 0
30k_methods (click) 2275219 1724755 5785 19356 4 0% 0 0 0
cfunc_itself (click) 316627 196785 11 53 4 7% 0 0 0
fib (click) 313491 195192 11 42 4 9% 0 0 0
getivar (click) 315475 196999 11 69 4 5% 0 0 0
keyword_args (click) 315603 196085 12 55 4 7% 0 0 0
respond_to (click) 315987 197220 11 55 5 9% 0 0 0
setivar (click) 315667 196304 11 42 4 9% 0 0 0
str_concat (click) 315091 196293 13 68 6 8% 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.