On Tue, Oct 15, 2013 at 06:06:46PM +0200, Ingo Molnar wrote: > > splice() is very fast and should be able to process a lot of pages in one > go, so the feedback loop should be pretty weak. mmap() triggers kernel > code as well, every time we run out of the 64 MB window we got to remap > it, right? > > But that's all just theory - I think non-temporal stores have a pretty > good chance of being a very good solution as well.
The first write to a fresh page will also cause kernel code to be ran. We fault and run mk_write, which will end up doing block allocation etc.. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
