YJIT Benchmarks

Details for Benchmarks at 2022-05-01 19:14:47

Overall YJIT is 32.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.7% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 159 75 159 20 159
mail 5 125 75 125 20 125
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 28 75 28 20 28
discourse 5 40 75 40 20 40
erubi 5 47 75 47 20 47
erubi_rails 5 1007 75 1007 20 1007
fannkuchredux 5 15 74 15 20 15
lee 5 22 75 22 20 22
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 28 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 447 75 447 20 447
fib 5 320 75 320 20 320
getivar 5 765 75 765 20 765
keyword_args 5 378 75 378 20 378
respond_to 5 106 75 106 20 106
setivar 5 1866 75 1866 20 1866
str_concat 5 198 75 198 20 198

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) 1007323 747999 131 1246 0 0% 0 0 0
hexapdf (click) 1092699 855274 682 7459 10 0% 0 0 0
liquid-render (click) 508571 389794 150 1617 2 0% 0 0 0
mail (click) 706907 531975 374 3323 15 0% 0 0 0
psych-load (click) 338139 254306 68 457 1 0% 0 0 0
railsbench (click) 2610651 1906334 1435 9764 16 0% 0 0 0
binarytrees (click) 171611 128872 13 54 0 0% 0 0 0
chunky_png (click) 371803 277153 88 961 0 0% 0 0 0
discourse (click) 5890971 4365803 3195 25277 83 0% 2 0 0
erubi (click) 321243 241828 10 79 0 0% 0 0 0
erubi_rails (click) 1924763 1384780 300 1978 4 0% 0 0 0
fannkuchredux (click) 186331 139968 10 188 0 0% 0 0 0
lee (click) 376923 282780 58 618 0 0% 0 0 0
nbody (click) 180571 135641 12 146 0 0% 0 0 0
optcarrot (click) 460315 395526 207 3017 20 0% 0 0 0
rubykon (click) 280923 220501 144 1151 0 0% 0 0 0
30k_ifelse (click) 5561627 4349972 9265 57804 0 0% 0 0 0
30k_methods (click) 2176027 1657760 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171035 128277 10 49 0 0% 0 0 0
fib (click) 169243 127507 10 38 0 0% 0 0 0
getivar (click) 168731 127264 10 34 0 0% 0 0 0
keyword_args (click) 171163 128244 11 51 0 0% 0 0 0
respond_to (click) 172891 129353 10 64 0 0% 0 0 0
setivar (click) 171035 128542 10 38 0 0% 0 0 0
str_concat (click) 169563 127596 12 43 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.