YJIT Benchmarks

Details for Benchmarks at 2022-05-03 07:13:11

Overall YJIT is 34.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.7% 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 5 191 75 191 20 191
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 125 75 125 20 125
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 28 75 28 20 28
discourse 5 40 75 40 20 40
erubi 5 47 75 47 20 47
erubi_rails 5 1002 75 1002 20 1002
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 5 432 75 432 20 432
fib 5 319 75 319 20 319
getivar 5 765 75 765 20 765
keyword_args 5 378 75 378 20 378
respond_to 5 104 75 104 20 104
setivar 5 1870 75 1870 20 1870
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) 1011611 751665 131 1233 0 0% 0 0 0
hexapdf (click) 1114715 873894 683 7698 9 0% 0 0 0
liquid-render (click) 506779 388456 150 1576 2 0% 0 0 0
mail (click) 921819 665844 374 5613 15 0% 0 0 0
psych-load (click) 339419 255149 68 457 1 0% 0 0 0
railsbench (click) 2621275 1913316 1435 9812 16 0% 0 0 0
binarytrees (click) 173211 129880 13 58 0 0% 0 0 0
chunky_png (click) 378715 282826 88 991 0 0% 0 0 0
discourse (click) 5904603 4374590 3196 25343 83 0% 2 0 0
erubi (click) 322587 242987 10 79 0 0% 0 0 0
erubi_rails (click) 1929179 1387751 300 1980 4 0% 0 0 0
fannkuchredux (click) 187227 140578 10 188 0 0% 0 0 0
lee (click) 377755 283362 58 618 0 0% 0 0 0
nbody (click) 182683 137081 12 158 0 0% 0 0 0
optcarrot (click) 513819 442330 207 3571 20 0% 0 0 0
rubykon (click) 317403 250578 144 1531 1 0% 0 0 0
30k_ifelse (click) 5562203 4350204 9265 57804 0 0% 0 0 0
30k_methods (click) 2177435 1658666 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171995 128887 10 49 0 0% 0 0 0
fib (click) 170203 128117 10 38 0 0% 0 0 0
getivar (click) 172507 130957 10 65 0 0% 0 0 0
keyword_args (click) 172571 129150 11 51 0 0% 0 0 0
respond_to (click) 173275 129532 10 64 0 0% 0 0 0
setivar (click) 172443 129481 10 38 0 0% 0 0 0
str_concat (click) 171931 129472 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.