On Fri, 26 Aug 2005, Ross Biro wrote: > On 8/26/05, Hugh Dickins <[EMAIL PROTECTED]> wrote: > > > > The refaulting will hurt the performance of something: let's > > just hope that something doesn't turn out to be a show-stopper. > > Why not just fault in all the pages on the first fault. Then the performance > loss is a single page fault (the page table copy that would have happened a > fork time now happens at fault time) and you get the big win for processes > that do fork/exec.
"all" might be very many more pages than were ever mapped in the parent, and not be a win. Some faultahead might work better. Might, might, ... Hugh - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
