YJIT Benchmarks

Details for Benchmarks at 2022-05-28 07:13:03

Overall YJIT is 29.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.0% 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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 131 75 131 20 131
mail 5 108 75 108 20 108
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 49 75 49 20 49
erubi_rails 5 796 75 796 20 796
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 25 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 448 75 448 20 448
fib 5 320 75 320 20 320
getivar 5 759 75 759 20 759
keyword_args 5 370 75 370 20 370
respond_to 5 108 75 108 20 108
setivar 5 1847 75 1847 20 1847
str_concat 5 199 75 199 20 199

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) 1012251 753319 131 1233 0 0% 0 0 0
hexapdf (click) 1119579 878476 682 7745 10 0% 0 0 0
liquid-render (click) 504859 386985 150 1547 2 0% 0 0 0
mail (click) 895387 647478 374 5368 15 0% 0 0 0
psych-load (click) 339739 255127 68 457 1 0% 0 0 0
railsbench (click) 2639003 1927178 1436 9837 16 0% 0 0 0
binarytrees (click) 173915 130095 13 58 0 0% 0 0 0
chunky_png (click) 379995 283481 88 1031 0 0% 0 0 0
discourse (click) 5936411 4405575 3197 25401 84 0% 2 0 0
erubi (click) 317403 241375 10 79 0 0% 0 0 0
erubi_rails (click) 1947867 1401543 300 1973 4 0% 0 0 0
fannkuchredux (click) 188251 141171 10 188 0 0% 0 0 0
lee (click) 378331 283680 58 622 0 0% 0 0 0
nbody (click) 183387 137296 12 158 0 0% 0 0 0
optcarrot (click) 513243 441684 207 3571 20 0% 0 0 0
rubykon (click) 318363 250875 144 1532 2 0% 0 0 0
30k_ifelse (click) 5562907 4350419 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659259 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172443 128724 10 49 0 0% 0 0 0
fib (click) 171163 128710 10 38 0 0% 0 0 0
getivar (click) 172955 131221 10 65 0 0% 0 0 0
keyword_args (click) 173211 129365 11 51 0 0% 0 0 0
respond_to (click) 174555 130178 10 64 0 0% 0 0 0
setivar (click) 172635 129367 10 38 0 0% 0 0 0
str_concat (click) 171611 129204 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.