YJIT Benchmarks

Details for Benchmarks at 2022-05-14 19:12:44

Overall YJIT is 32.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 26.8% 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.

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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 5 189 75 189 20 189
hexapdf 5 15 20 15
liquid-render 5 137 75 137 20 137
mail 5 106 75 106 20 106
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 30 75 30 20 30
discourse 5 33 75 33 20 33
erubi 5 45 75 45 20 45
erubi_rails 5 792 75 792 20 792
fannkuchredux 5 15 73 15 20 15
lee 5 21 75 21 20 21
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 25 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 445 75 445 20 445
fib 5 320 75 320 20 320
getivar 5 766 75 766 20 766
keyword_args 5 379 75 379 20 379
respond_to 5 102 75 102 20 102
setivar 5 1864 75 1864 20 1864
str_concat 5 192 75 192 20 192

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) 1014107 754559 131 1243 0 0% 0 0 0
hexapdf (click) 1119451 878702 682 7742 9 0% 0 0 0
liquid-render (click) 500187 383910 150 1563 2 0% 0 0 0
mail (click) 932827 673318 375 5768 15 0% 0 0 0
psych-load (click) 339547 255124 68 457 1 0% 0 0 0
railsbench (click) 2643035 1929788 1436 9871 16 0% 0 0 0
binarytrees (click) 171867 128729 13 58 0 0% 0 0 0
chunky_png (click) 379099 283512 88 984 0 0% 0 0 0
discourse (click) 5936219 4405997 3195 25322 86 0% 2 0 0
erubi (click) 319451 242761 10 79 0 0% 0 0 0
erubi_rails (click) 1945051 1399733 300 1954 4 0% 0 0 0
fannkuchredux (click) 185883 139427 10 188 0 0% 0 0 0
lee (click) 378331 283802 58 622 0 0% 0 0 0
nbody (click) 181339 135930 12 158 0 0% 0 0 0
optcarrot (click) 512539 441179 207 3571 20 0% 0 0 0
rubykon (click) 316891 250006 144 1537 1 0% 0 0 0
30k_ifelse (click) 5560923 4349053 9265 57804 0 0% 0 0 0
30k_methods (click) 2176091 1657515 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170395 127358 10 49 0 0% 0 0 0
fib (click) 168859 126966 10 38 0 0% 0 0 0
getivar (click) 170651 129477 10 65 0 0% 0 0 0
keyword_args (click) 171227 127999 11 51 0 0% 0 0 0
respond_to (click) 172507 128812 10 64 0 0% 0 0 0
setivar (click) 170587 128001 10 38 0 0% 0 0 0
str_concat (click) 170587 128321 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.