YJIT Benchmarks

Details for Benchmarks at 2022-05-27 19:12:51

Overall YJIT is 28.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.2% 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 5 194 75 194 20 194
hexapdf 5 15 20 15
liquid-render 5 139 75 139 20 139
mail 5 108 75 108 20 108
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 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 49 75 49 20 49
erubi_rails 5 781 75 781 20 781
fannkuchredux 5 15 51 15 20 15
lee 5 20 75 20 20 20
nbody 5 268 75 268 20 268
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 5 444 75 444 20 444
fib 5 320 75 320 20 320
getivar 5 759 75 759 20 759
keyword_args 5 375 75 375 20 375
respond_to 5 107 75 107 20 107
setivar 5 1852 75 1852 20 1852
str_concat 5 184 75 184 20 184

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) 1016795 755852 131 1257 0 0% 0 0 0
hexapdf (click) 1119451 877950 682 7747 10 0% 0 0 0
liquid-render (click) 510683 391044 150 1623 2 0% 0 0 0
mail (click) 906139 654730 374 5485 15 0% 0 0 0
psych-load (click) 339419 254749 68 457 1 0% 0 0 0
railsbench (click) 2641243 1928424 1436 9862 16 0% 0 0 0
binarytrees (click) 174235 130473 13 58 0 0% 0 0 0
chunky_png (click) 376027 281229 88 966 0 0% 0 0 0
discourse (click) 5930203 4401266 3197 25336 84 0% 2 0 0
erubi (click) 316827 240904 10 79 0 0% 0 0 0
erubi_rails (click) 1949659 1402277 300 2001 4 0% 0 0 0
fannkuchredux (click) 187931 140793 10 188 0 0% 0 0 0
lee (click) 378011 283537 58 622 0 0% 0 0 0
nbody (click) 182043 136435 12 158 0 0% 0 0 0
optcarrot (click) 514587 442545 207 3571 20 0% 0 0 0
rubykon (click) 319387 251658 144 1541 1 0% 0 0 0
30k_ifelse (click) 5561627 4349558 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659259 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172571 128724 10 49 0 0% 0 0 0
fib (click) 169563 127471 10 38 0 0% 0 0 0
getivar (click) 172699 130843 10 65 0 0% 0 0 0
keyword_args (click) 173275 129365 11 51 0 0% 0 0 0
respond_to (click) 174555 130178 10 64 0 0% 0 0 0
setivar (click) 172635 129367 10 38 0 0% 0 0 0
str_concat (click) 172635 129687 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.