YJIT Benchmarks

Details for Benchmarks at 2022-04-07 19:14:16

Overall YJIT is 31.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.3% 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 5 182 75 182 20 182
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 123 75 123 20 123
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 30 75 30 20 30
discourse 5 40 75 40 20 40
erubi 5 46 75 46 20 46
erubi_rails 5 984 75 984 20 984
fannkuchredux 5 15 73 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 28 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 441 75 441 20 441
fib 5 320 75 320 20 320
getivar 5 782 75 782 20 782
keyword_args 5 377 75 377 20 377
respond_to 5 103 75 103 20 103
setivar 5 1817 75 1817 20 1817

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) 992465 813837 185 1185 0 0% 0 0 0
hexapdf (click) 1099537 923311 600 7897 427 5% 0 0 321
liquid-render (click) 499281 421741 143 1500 92 6% 0 0 5
mail (click) 844689 655792 324 4968 96 1% 0 0 111
psych-load (click) 341329 286443 59 434 1 0% 0 0 0
railsbench (click) 2598481 2104629 1297 9397 224 2% 0 0 26
binarytrees (click) 168913 138452 11 58 0 0% 0 0 0
chunky_png (click) 376145 309852 85 865 0 0% 0 0 0
discourse (click) 6233745 5604275 3128 26862 3244 12% 2 0 140
erubi (click) 328977 276794 10 79 0 0% 0 0 0
erubi_rails (click) 1954513 1595300 262 1870 12 0% 0 0 3
fannkuchredux (click) 182673 149150 8 188 0 0% 0 0 0
lee (click) 379025 316065 45 582 68 11% 0 0 13
nbody (click) 177809 145437 10 158 0 0% 0 0 0
optcarrot (click) 504913 450954 198 3575 20 0% 0 0 0
rubykon (click) 309137 257954 140 1523 1 0% 0 0 0
30k_ifelse (click) 5558929 4359248 9263 57806 0 0% 0 0 0
30k_methods (click) 2173905 1667612 5782 19361 0 0% 0 0 0
cfunc_itself (click) 166865 136752 8 49 0 0% 0 0 0
fib (click) 165457 136360 8 38 0 0% 0 0 0
getivar (click) 167185 138871 8 65 0 0% 0 0 0
keyword_args (click) 169041 138096 9 51 0 0% 0 0 0
respond_to (click) 169041 138206 8 64 0 0% 0 0 0
setivar (click) 168465 138098 8 38 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.