YJIT Benchmarks

Details for Benchmarks at 2022-05-11 07:15:14

Overall YJIT is 30.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.6% 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 5 187 75 187 20 187
hexapdf 5 15 20 15
liquid-render 5 137 75 137 20 137
mail 5 105 75 105 20 105
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 65 75 65 20 65
chunky_png 5 29 75 29 20 29
discourse 5 33 75 33 20 33
erubi 5 44 75 44 20 44
erubi_rails 5 785 75 785 20 785
fannkuchredux 5 15 50 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 26 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 436 75 436 20 436
fib 5 320 75 320 20 320
getivar 5 765 75 765 20 765
keyword_args 5 381 75 381 20 381
respond_to 5 103 75 103 20 103
setivar 5 1861 75 1861 20 1861
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) 1010395 751160 131 1219 0 0% 0 0 0
hexapdf (click) 1114395 873833 683 7701 9 0% 0 0 0
liquid-render (click) 505819 387893 150 1565 2 0% 0 0 0
mail (click) 888539 643012 374 5297 15 0% 0 0 0
psych-load (click) 339547 255124 68 457 1 0% 0 0 0
railsbench (click) 2619803 1912996 1435 9811 16 0% 0 0 0
binarytrees (click) 171867 128729 13 58 0 0% 0 0 0
chunky_png (click) 381403 284352 88 1009 0 0% 0 0 0
discourse (click) 5906523 4377646 3195 25361 83 0% 2 0 0
erubi (click) 322459 242503 10 79 0 0% 0 0 0
erubi_rails (click) 1933915 1391318 300 2010 4 0% 0 0 0
fannkuchredux (click) 185883 139427 10 188 0 0% 0 0 0
lee (click) 377691 283337 58 618 0 0% 0 0 0
nbody (click) 181339 135930 12 158 0 0% 0 0 0
optcarrot (click) 512475 441179 207 3571 20 0% 0 0 0
rubykon (click) 316571 249963 144 1541 2 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.