YJIT Benchmarks

Details for Benchmarks at 2022-07-29 05:20:29

Overall YJIT is 34.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.9% 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.

Want Raw Graphs and CSV?

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 5 160 75 160 20 160
mail 5 127 75 127 20 127
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 31 75 31 20 31
erubi 5 62 75 62 20 62
erubi_rails 5 1040 75 1040 20 1040
fannkuchredux 5 15 74 15 20 15
lee 5 21 75 21 20 21
nbody 5 262 75 262 20 262
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 30 22 20 22
cfunc_itself 5 443 75 443 20 443
fib 5 315 75 315 20 315
getivar 5 626 75 626 20 626
keyword_args 5 381 75 381 20 381
respond_to 5 105 75 105 20 105
setivar 5 959 75 959 20 959
str_concat 5 466 75 466 20 466

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) 1038619 781771 131 1289 0 0% 0 0 0
hexapdf (click) 1151579 925876 683 8021 9 0% 0 0 0
liquid-render (click) 516251 401664 150 1643 2 0% 0 0 0
mail (click) 913563 659426 374 5438 17 0% 0 0 0
psych-load (click) 348059 263843 68 482 1 0% 0 0 0
railsbench (click) 2659995 1970376 1436 10048 16 0% 0 0 0
binarytrees (click) 171739 128078 13 58 0 0% 0 0 0
chunky_png (click) 389979 291316 88 1037 0 0% 0 0 0
erubi (click) 323547 246784 10 79 0 0% 0 0 0
erubi_rails (click) 1961691 1429646 300 2011 4 0% 0 0 0
fannkuchredux (click) 186011 138504 10 188 0 0% 0 0 0
lee (click) 385883 291354 58 632 0 0% 0 0 0
nbody (click) 182811 137569 12 171 0 0% 0 0 0
optcarrot (click) 514203 442736 207 3588 20 0% 0 0 0
rubykon (click) 321243 256847 144 1570 1 0% 0 0 0
30k_ifelse (click) 5561179 4348714 9265 57804 0 0% 0 0 0
30k_methods (click) 2176411 1657304 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170779 127147 10 49 0 0% 0 0 0
fib (click) 168731 126459 10 38 0 0% 0 0 0
getivar (click) 170907 128842 10 65 0 0% 0 0 0
keyword_args (click) 171099 127492 11 51 0 0% 0 0 0
respond_to (click) 172827 128601 10 64 0 0% 0 0 0
setivar (click) 170395 127366 10 38 0 0% 0 0 0
str_concat (click) 170843 128069 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.