YJIT Benchmarks

Details for Benchmarks at 2022-09-14 20:12:54

Overall YJIT is 33.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.8% 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 5 195 75 195 20 195
hexapdf 5 15 20 15
liquid-render 5 161 75 161 20 161
mail 5 127 75 127 20 127
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
erubi 5 67 75 67 20 67
erubi_rails 5 1048 75 1048 20 1048
fannkuchredux 5 15 57 15 20 15
lee 5 21 75 21 20 21
nbody 5 266 75 266 20 266
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 55 69 55 20 55
30k_methods 5 25 23 25 20 25
cfunc_itself 5 443 75 443 20 443
fib 5 318 75 318 20 318
getivar 5 467 75 467 20 467
keyword_args 5 380 75 380 20 380
respond_to 5 107 75 107 20 107
setivar 5 436 75 436 20 436
str_concat 5 422 75 422 20 422

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) 1070391 777304 131 1267 0 0% 0 0 0
hexapdf (click) 1184375 920149 682 8027 10 0% 0 0 0
liquid-render (click) 535287 402289 150 1710 2 0% 0 0 0
mail (click) 939511 654308 374 5402 17 0% 0 0 0
psych-load (click) 357175 261442 68 474 1 0% 0 0 0
railsbench (click) 2745847 1965114 1436 10053 16 0% 0 0 0
binarytrees (click) 176695 127121 13 60 0 0% 0 0 0
chunky_png (click) 402807 290221 88 1032 0 0% 0 0 0
erubi (click) 345015 252833 10 79 0 0% 0 0 0
erubi_rails (click) 2029367 1425354 300 2044 4 0% 0 0 0
fannkuchredux (click) 189559 136391 10 196 0 0% 0 0 0
lee (click) 398775 289752 58 634 0 0% 0 0 0
nbody (click) 187959 136521 12 171 0 0% 0 0 0
optcarrot (click) 532727 441762 207 3592 20 0% 0 0 0
rubykon (click) 328887 254545 144 1561 2 0% 0 0 0
30k_ifelse (click) 5663927 4347091 9265 57804 0 0% 0 0 0
30k_methods (click) 2209463 1656256 5784 19361 0 0% 0 0 0
cfunc_itself (click) 174071 125396 10 49 0 0% 0 0 0
fib (click) 172855 125283 10 38 0 0% 0 0 0
getivar (click) 174199 127091 10 65 0 0% 0 0 0
keyword_args (click) 174775 126037 11 51 0 0% 0 0 0
respond_to (click) 176823 127129 10 64 0 0% 0 0 0
setivar (click) 174263 126024 10 38 0 0% 0 0 0
str_concat (click) 175351 126946 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.