YJIT Benchmarks

Details for Benchmarks at 2022-07-25 20:14:06

Overall YJIT is 35.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.3% 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 5 158 75 158 20 158
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 62 75 62 20 62
erubi_rails 5 1012 75 1012 20 1012
fannkuchredux 5 15 73 15 20 15
lee 5 21 75 21 20 21
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 23 29 23 20 23
cfunc_itself 5 444 75 444 20 444
fib 5 315 75 315 20 315
getivar 5 611 75 611 20 611
keyword_args 5 376 75 376 20 376
respond_to 5 104 75 104 20 104
setivar 5 959 75 959 20 959
str_concat 5 484 75 484 20 484

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) 1037211 780002 131 1244 0 0% 0 0 0
hexapdf (click) 1150683 924556 682 7963 9 0% 0 0 0
liquid-render (click) 524443 407680 150 1708 2 0% 0 0 0
mail (click) 927643 668752 374 5599 17 0% 0 0 0
psych-load (click) 348891 264549 68 476 1 0% 0 0 0
railsbench (click) 2646555 1959588 1436 9862 16 0% 0 0 0
binarytrees (click) 171739 128078 13 58 0 0% 0 0 0
chunky_png (click) 383835 287335 88 970 0 0% 0 0 0
erubi (click) 323547 246749 10 79 0 0% 0 0 0
erubi_rails (click) 1961307 1429001 300 2010 4 0% 0 0 0
fannkuchredux (click) 186075 138504 10 188 0 0% 0 0 0
lee (click) 385819 291264 58 630 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) 321435 256963 144 1574 1 0% 0 0 0
30k_ifelse (click) 5560795 4348546 9265 57804 0 0% 0 0 0
30k_methods (click) 2176411 1657304 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170715 127147 10 49 0 0% 0 0 0
fib (click) 169179 126755 10 38 0 0% 0 0 0
getivar (click) 170907 128842 10 65 0 0% 0 0 0
keyword_args (click) 171547 127788 11 51 0 0% 0 0 0
respond_to (click) 172891 128601 10 64 0 0% 0 0 0
setivar (click) 170843 127662 10 38 0 0% 0 0 0
str_concat (click) 170907 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.