YJIT Benchmarks

Details for Benchmarks at 2022-08-30 20:14:13

Overall YJIT is 33.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.8% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 184 75 184 20 184
hexapdf 5 15 20 15
liquid-render 5 160 75 160 20 160
mail 5 126 75 126 20 126
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 65 75 65 20 65
chunky_png 5 29 75 29 20 29
erubi 5 60 75 60 20 60
erubi_rails 5 1023 75 1023 20 1023
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 259 75 259 20 259
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 51 69 51 20 51
30k_methods 5 24 23 24 20 24
cfunc_itself 5 426 75 426 20 426
fib 5 301 75 301 20 301
getivar 5 610 75 610 20 610
keyword_args 5 355 75 355 20 355
respond_to 5 99 75 99 20 99
setivar 5 982 75 982 20 982
str_concat 5 415 75 415 20 415

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) 1122051 780593 131 1266 0 0% 0 0 0
hexapdf (click) 1251139 922987 682 8007 9 0% 0 0 0
liquid-render (click) 563843 404474 150 1703 2 0% 0 0 0
mail (click) 996163 664526 374 5561 17 0% 0 0 0
psych-load (click) 375683 263198 68 482 1 0% 0 0 0
railsbench (click) 2888515 1976415 1436 10121 16 0% 0 0 0
binarytrees (click) 185155 128129 13 58 0 0% 0 0 0
chunky_png (click) 422083 292246 88 1037 0 0% 0 0 0
erubi (click) 358787 252482 10 79 0 0% 0 0 0
erubi_rails (click) 2132291 1433240 300 2025 4 0% 0 0 0
fannkuchredux (click) 200003 137897 10 196 0 0% 0 0 0
lee (click) 416899 290541 58 632 0 0% 0 0 0
nbody (click) 196739 136946 12 171 0 0% 0 0 0
optcarrot (click) 563331 442347 207 3588 20 0% 0 0 0
rubykon (click) 348099 256987 145 1578 1 0% 0 0 0
30k_ifelse (click) 5920835 4348547 9265 57804 0 0% 0 0 0
30k_methods (click) 2288003 1656681 5784 19361 0 0% 0 0 0
cfunc_itself (click) 183363 126524 10 49 0 0% 0 0 0
fib (click) 181699 126132 10 38 0 0% 0 0 0
getivar (click) 183619 128219 10 65 0 0% 0 0 0
keyword_args (click) 184131 127165 11 51 0 0% 0 0 0
respond_to (click) 185859 127978 10 64 0 0% 0 0 0
setivar (click) 183683 127417 10 38 0 0% 0 0 0
str_concat (click) 183683 127749 12 62 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.