On 12/20/12 4:20 AM, Otto Moerbeek wrote: > On Thu, Dec 20, 2012 at 04:06:52AM -0500, Jean-Philippe Ouellet wrote: > >> On 12/20/12 3:53 AM, Jean-Philippe Ouellet wrote: >>> and madvise() them to not be swapped out? >> >> Oops, I think I might have misinterpreted the meaning of MADV_WILLNEED. >> I think I meant mlock(). > > Why trying to be smarter than the kernel? Mlocking pages will kill you > if there's memory shortage. > > The kernel will try to keep much used pages in mem anyway. > > -Otto >
Okay, yeah. That's a terrible idea. But still, the question of direct file-to-socket sending vs. keeping copies in my address space and write()ing those to the socket still remains. Normally I would just write both and profile them, but I can't figure out how to do the first on OpenBSD.
