YJIT Benchmarks

Details for Benchmarks at 2022-10-05 14:27:37

Overall YJIT is 35.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 30.0% 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 YJIT warmups YJIT iters
activerecord 5 196 20 196
hexapdf 5 15 20 15
liquid-render 5 171 20 171
mail 5 129 20 129
psych-load 5 15 20 15
railsbench 5 15 20 15
binarytrees 5 84 20 84
chunky_png 5 29 20 29
erubi 5 67 20 67
erubi_rails 5 1053 20 1053
fannkuchredux 5 15 20 15
lee 5 20 20 20
nbody 5 262 20 262
optcarrot 5 15 20 15
rubykon 5 15 20 15
30k_ifelse 5 55 20 55
30k_methods 5 25 20 25
cfunc_itself 5 428 20 428
fib 5 313 20 313
getivar 5 467 20 467
keyword_args 5 359 20 359
respond_to 5 632 20 632
setivar 5 490 20 490
str_concat 5 492 20 492

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) 2478737 1541430 23 265 6 2% 0 0 0
hexapdf (click) 1884307 1382801 873 9376 181 1% 0 0 0
liquid-render (click) 740307 511426 154 1658 34 2% 0 0 0
mail (click) 1480723 992940 385 4897 174 3% 0 0 0
psych-load (click) 939027 627689 68 435 18 4% 0 0 0
railsbench (click) 5398417 3449846 1784 12530 470 3% 0 0 0
binarytrees (click) 318163 203226 14 70 4 5% 0 0 0
chunky_png (click) 954579 643520 87 1017 31 3% 0 0 0
erubi (click) 891731 601361 11 76 4 5% 0 0 0
erubi_rails (click) 4482513 2773702 327 2473 104 4% 0 0 0
fannkuchredux (click) 331283 212961 11 200 4 2% 0 0 0
lee (click) 960915 650982 80 744 25 3% 0 0 0
nbody (click) 333587 215643 13 179 6 3% 0 0 0
optcarrot (click) 757459 594502 201 3773 93 2% 0 0 0
rubykon (click) 474835 333814 143 1565 32 2% 0 0 0
30k_ifelse (click) 5624979 4414714 9266 57127 4 0% 0 0 0
30k_methods (click) 2275987 1730454 5785 19356 4 0% 0 0 0
cfunc_itself (click) 311955 198779 11 53 4 7% 0 0 0
fib (click) 314131 200761 11 42 4 9% 0 0 0
getivar (click) 317011 203612 11 69 4 5% 0 0 0
keyword_args (click) 316371 201719 12 55 4 7% 0 0 0
respond_to (click) 314963 201513 11 55 5 9% 0 0 0
setivar (click) 316371 201903 11 42 4 9% 0 0 0
str_concat (click) 315859 201927 13 68 6 8% 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.