> > Oh really, "it has been stated". By who? Overall, I doubt that all > > of our security technologies add more than about 2% of a performance > > hit. Even a 'make build' on most architectures did not add that. I > > think you need to go back and read my slides again. Spreading lies > > about 5-10% performance hits is just not kind to our efforts. > > I've reread the slides again. I stand corrected when it comes to w^x & > propolice, but I'm still not in the clear when it comes to randomized > malloc & mmap. The slides from bsdcan 2004 state: "still failry > expensive", the slides from opencon 2005 no longer mention anything > about performance.
Well, we never measured it again. Because we didn't feel any slowdown or feel any effect. Otto did speed something up a few weeks ago, but these are totally minor effects, honestly. But since we didn't bother measuring it, we should probably all assume a 10% slowdown. That's easier. It explains everything, including spring coming earlier every year. In the future, if you don't measure it yourself, please just withhold comment.
