3 ms·
This is very nice to know actually, and quite relevant to code I am working on right now! Disappointing though. > it's hard to imagine an application that wo
by com2kid 13y ago
This is very nice to know actually, and quite relevant to code I am working on right now!
Disappointing though.
> it's hard to imagine an application that would notice a significant performance difference.
One hopes any function call made often enough to be a perf hit from this would also be designed to be easily inlined!
- clord 13y agoScientific computing will hit this sort of problem just because the kernel is so large it actually needs to be broken into sub-procedures for icache reasons. But also, the penalty is large, because there is a full store/load cycle involved, which will clear caches and increase memory bandwidth requirements.