On Fri, Aug 05, 2005 at 10:21:38AM -0500, Adam Litke wrote: > Below is a patch to implement demand faulting for huge pages. The main > motivation for changing from prefaulting to demand faulting is so that > huge page allocations can follow the NUMA API. Currently, huge pages > are allocated round-robin from all NUMA nodes.
I think matching DEFAULT is better than having a different default for huge pages than for small pages. In general more programs are happy with local memory than remote memory. Also it makes it consistent. > > The default behavior in SLES9 for i386 is to use demand faulting with > NUMA policy-aware allocations. To my knowledge, this continues to work Not sure what you're trying to say here. All allocations are NUMA policy aware. > well in practice. Thanks to consolidated hugetlb code, switching the > behavior requires changing only one fault handler. The bulk of the > patch just moves the logic from hugelb_prefault() to > hugetlb_pte_fault(). Are you sure you fixed get_user_pages to handle this properly? It doesn't like it. -Andi - 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/
