[lkml]   [2005]   [Nov]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [Lhms-devel] [PATCH 0/7] Fragmentation Avoidance V19
    On 11/4/05, Andy Nelson <> wrote:
    > I am not enough of a kernel level person or sysadmin to know for certain,
    > but I have still big worries about consecutive jobs that run on the
    > same resources, but want extremely different page behavior. I

    Thats the idea. The 'hugetlb zone' will only be usable for allocations
    which are guaranteed reclaimable. Reclaimable includes userspace
    usage (since at worst an in use userspace page can be swapped out then
    paged back into another physical location).

    For your sort of mixed use this should be a fine solution. However
    there are mixed use cases that that this will not solve, for example
    if the system usage is split between HPC uses and kernel allocation
    heavy workloads (say forking 10quintillion java processes) then the
    hugetlb zone will need to be made small to keep the kernel allocation
    heavy workload happy.
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-11-04 22:33    [W:0.020 / U:19.236 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site