YJIT Benchmarks

Details for Benchmarks at 2022-08-25 20:14:18

Overall YJIT is 35.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.5% 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 5 191 75 191 20 191
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 30 75 30 20 30
erubi 5 61 75 61 20 61
erubi_rails 5 1008 75 1008 20 1008
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
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 65 56 20 56
30k_methods 5 22 22 22 20 22
cfunc_itself 5 426 75 426 20 426
fib 5 315 75 315 20 315
getivar 5 617 75 617 20 617
keyword_args 5 363 75 363 20 363
respond_to 5 107 75 107 20 107
setivar 5 983 75 983 20 983
str_concat 5 430 75 430 20 430

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) 1038299 781213 131 1281 0 0% 0 0 0
hexapdf (click) 1149915 923566 683 8014 9 0% 0 0 0
liquid-render (click) 517851 402312 150 1676 2 0% 0 0 0
mail (click) 922395 664031 374 5557 17 0% 0 0 0
psych-load (click) 347227 263198 68 482 1 0% 0 0 0
railsbench (click) 2657627 1967212 1436 10048 16 0% 0 0 0
binarytrees (click) 171099 127751 13 58 0 0% 0 0 0
chunky_png (click) 392923 292969 88 1061 0 0% 0 0 0
erubi (click) 331355 252457 10 79 0 0% 0 0 0
erubi_rails (click) 1962267 1428987 300 2032 4 0% 0 0 0
fannkuchredux (click) 185179 137847 10 196 0 0% 0 0 0
lee (click) 385243 290944 58 632 0 0% 0 0 0
nbody (click) 181723 136946 12 171 0 0% 0 0 0
optcarrot (click) 513115 442113 207 3588 20 0% 0 0 0
rubykon (click) 320347 256403 144 1574 1 0% 0 0 0
30k_ifelse (click) 5560155 4348219 9265 57804 0 0% 0 0 0
30k_methods (click) 2175323 1656681 5784 19361 0 0% 0 0 0
cfunc_itself (click) 169627 126524 10 49 0 0% 0 0 0
fib (click) 168091 126132 10 38 0 0% 0 0 0
getivar (click) 169819 128219 10 65 0 0% 0 0 0
keyword_args (click) 170459 127165 11 51 0 0% 0 0 0
respond_to (click) 171739 127978 10 64 0 0% 0 0 0
setivar (click) 170011 127417 10 38 0 0% 0 0 0
str_concat (click) 170011 127749 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.