YJIT Benchmarks

Details for Benchmarks at 2022-06-11 20:14:06

Overall YJIT is 32.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.3% 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.

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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 5 155 75 155 20 155
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 29 75 29 20 29
discourse 5 41 75 41 20 41
erubi 5 49 75 49 20 49
erubi_rails 5 1005 75 1005 20 1005
fannkuchredux 5 15 52 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 32 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 416 75 416 20 416
fib 5 320 75 320 20 320
getivar 5 762 75 762 20 762
keyword_args 5 347 75 347 20 347
respond_to 5 108 75 108 20 108
setivar 5 1838 75 1838 20 1838
str_concat 5 193 75 193 20 193

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) 1014939 754596 131 1260 0 0% 0 0 0
hexapdf (click) 1120091 879126 682 7749 9 0% 0 0 0
liquid-render (click) 514011 393348 150 1630 2 0% 0 0 0
mail (click) 893595 646447 374 5345 15 0% 0 0 0
psych-load (click) 339675 255124 68 457 1 0% 0 0 0
railsbench (click) 2616539 1912940 1436 9785 16 0% 0 0 0
binarytrees (click) 174107 130445 13 58 0 0% 0 0 0
chunky_png (click) 375643 280891 88 975 0 0% 0 0 0
discourse (click) 5877339 4366019 3163 25136 83 0% 2 0 0
erubi (click) 319131 242643 10 79 0 0% 0 0 0
erubi_rails (click) 1930651 1391336 300 1988 4 0% 0 0 0
fannkuchredux (click) 188123 141143 10 188 0 0% 0 0 0
lee (click) 378331 283827 58 622 0 0% 0 0 0
nbody (click) 183707 137646 12 158 0 0% 0 0 0
optcarrot (click) 514907 442895 207 3571 20 0% 0 0 0
rubykon (click) 318427 251109 144 1528 1 0% 0 0 0
30k_ifelse (click) 5563163 4350769 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659231 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172763 129074 10 49 0 0% 0 0 0
fib (click) 171227 128682 10 38 0 0% 0 0 0
getivar (click) 172891 131193 10 65 0 0% 0 0 0
keyword_args (click) 173595 129715 11 51 0 0% 0 0 0
respond_to (click) 174875 130528 10 64 0 0% 0 0 0
setivar (click) 172827 129717 10 38 0 0% 0 0 0
str_concat (click) 172955 130037 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.