YJIT Benchmarks

Details for Benchmarks at 2022-05-15 19:12:45

Overall YJIT is 30.8% 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.

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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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 132 75 132 20 132
mail 5 108 75 108 20 108
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 37 75 37 20 37
erubi 5 48 75 48 20 48
erubi_rails 5 787 75 787 20 787
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 25 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 448 75 448 20 448
fib 5 320 75 320 20 320
getivar 5 765 75 765 20 765
keyword_args 5 347 75 347 20 347
respond_to 5 106 75 106 20 106
setivar 5 1859 75 1859 20 1859
str_concat 5 197 75 197 20 197

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) 1012635 753326 131 1241 0 0% 0 0 0
hexapdf (click) 1119323 878609 682 7742 9 0% 0 0 0
liquid-render (click) 511131 392013 150 1621 2 0% 0 0 0
mail (click) 917083 662318 374 5558 15 0% 0 0 0
psych-load (click) 339547 255124 68 457 1 0% 0 0 0
railsbench (click) 2634971 1924237 1436 9788 16 0% 0 0 0
binarytrees (click) 171867 128729 13 58 0 0% 0 0 0
chunky_png (click) 377179 282158 88 970 0 0% 0 0 0
discourse (click) 5940891 4407721 3197 25388 84 0% 2 0 0
erubi (click) 319387 242761 10 79 0 0% 0 0 0
erubi_rails (click) 1948123 1401514 300 1979 4 0% 0 0 0
fannkuchredux (click) 185883 139427 10 188 0 0% 0 0 0
lee (click) 378267 283827 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) 317083 249975 144 1535 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.