YJIT Benchmarks

Details for Benchmarks at 2022-06-27 20:14:14

Overall YJIT is 36.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.8% 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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 155 75 155 20 155
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 66 75 66 20 66
chunky_png 5 30 75 30 20 30
erubi 5 50 75 50 20 50
erubi_rails 5 953 75 953 20 953
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 33 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 444 75 444 20 444
fib 5 315 75 315 20 315
getivar 5 764 75 764 20 764
keyword_args 5 377 75 377 20 377
respond_to 5 108 75 108 20 108
setivar 5 1841 75 1841 20 1841
str_concat 5 197 75 197 20 197

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) 1015707 755501 131 1252 0 0% 0 0 0
hexapdf (click) 1118619 878314 682 7754 10 0% 0 0 0
liquid-render (click) 513819 394124 150 1645 2 0% 0 0 0
mail (click) 909211 657595 374 5526 15 0% 0 0 0
psych-load (click) 340251 255425 68 457 1 0% 0 0 0
railsbench (click) 2619035 1915747 1436 9877 16 0% 0 0 0
binarytrees (click) 173467 129779 13 58 0 0% 0 0 0
chunky_png (click) 379099 282966 88 997 0 0% 0 0 0
erubi (click) 316443 240692 10 79 0 0% 0 0 0
erubi_rails (click) 1926363 1387901 300 1976 4 0% 0 0 0
fannkuchredux (click) 186459 139852 10 188 0 0% 0 0 0
lee (click) 377051 282653 58 622 0 0% 0 0 0
nbody (click) 182427 136684 12 158 0 0% 0 0 0
optcarrot (click) 514139 442229 207 3571 20 0% 0 0 0
rubykon (click) 317915 250443 144 1528 1 0% 0 0 0
30k_ifelse (click) 5561499 4349478 9265 57804 0 0% 0 0 0
30k_methods (click) 2177691 1658565 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171483 128079 10 49 0 0% 0 0 0
fib (click) 169947 127687 10 38 0 0% 0 0 0
getivar (click) 171227 129902 10 65 0 0% 0 0 0
keyword_args (click) 172315 128720 11 51 0 0% 0 0 0
respond_to (click) 173595 129566 10 64 0 0% 0 0 0
setivar (click) 171163 128426 10 38 0 0% 0 0 0
str_concat (click) 172123 129426 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.