YJIT Benchmarks

Details for Benchmarks at 2023-01-03 20:10:17

Overall YJIT is 41.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 37.5% 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 YJIT warmups YJIT iters
activerecord 5 214 5 214
hexapdf 5 15 5 15
liquid-render 5 179 5 179
mail 5 140 5 140
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 293 5 293
binarytrees 5 86 5 86
chunky_png 5 32 5 32
erubi 5 68 5 68
erubi_rails 5 1149 5 1149
etanni 5 42 5 42
fannkuchredux 5 21 5 21
lee 5 22 5 22
nbody 5 279 5 279
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 496 5 496
fib 5 318 5 318
getivar 5 436 5 436
keyword_args 5 383 5 383
respond_to 5 699 5 699
setivar 5 1360 5 1360
setivar_object 5 398 5 398
str_concat 5 459 5 459

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) 2275876 2275796 25 400 5 1% 0 0 0
hexapdf (click) 1714859 1713494 820 10431 217 2% 0 0 0
liquid-render (click) 567043 566166 156 1851 32 1% 0 0 0
mail (click) 1240742 1239190 373 4626 176 3% 0 0 0
psych-load (click) 780341 779394 70 651 19 2% 0 0 0
railsbench (click) 5538160 5536920 1779 14410 483 3% 0 0 0
ruby-lsp (click) 5382818 5381394 6428 41686 1539 3% 14654 0 0
binarytrees (click) 96267 94002 16 140 3 2% 0 0 0
chunky_png (click) 800616 798362 89 1178 31 2% 0 0 0
erubi (click) 739872 738828 13 149 4 2% 0 0 0
erubi_rails (click) 4663147 4661530 329 2838 111 3% 0 0 0
etanni (click) 144287 142402 13 108 3 2% 0 0 0
fannkuchredux (click) 108481 107742 14 273 3 1% 0 0 0
lee (click) 804472 803796 79 820 24 2% 0 0 0
nbody (click) 109148 108114 15 245 5 2% 0 0 0
optcarrot (click) 519950 518430 203 4439 92 2% 0 0 0
rubykon (click) 238288 237786 146 1671 30 1% 0 0 0
30k_ifelse (click) 5245212 5242928 9268 57200 3 0% 0 0 0
30k_methods (click) 1993486 1991930 5787 19427 3 0% 0 0 0
cfunc_itself (click) 93752 92274 13 123 3 2% 0 0 0
fib (click) 92325 91458 13 112 3 2% 0 0 0
getivar (click) 94099 92610 13 139 3 2% 0 0 0
keyword_args (click) 91098 90506 14 93 3 3% 0 0 0
respond_to (click) 94263 92758 13 139 4 2% 0 0 0
setivar (click) 93138 91890 13 119 3 2% 0 0 0
setivar_object (click) 93480 92038 13 119 3 2% 0 0 0
str_concat (click) 94011 92590 15 138 5 3% 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.