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    SubjectRe: [PATCH] 2.6.23-rc1-mm1 - fix missing numa_zonelist_order sysctl
    On Thu, 02 Aug 2007 11:07:38 -0400
    Lee Schermerhorn <> wrote:

    > Of course, I don't have any idea of what is a "reasonable amount".
    > Guess I could look at non-movable zone memory usage in a system at
    > typical or peak load to get an idea. Anyone have any data in this
    > regard?
    I'm sorry that I have no data and idea.
    ZONE_MOVABLE is too young to be used under business workload...

    just I feel...
    Considering i686 which divides memory into NORMAL and HIGHMEM, it seems
    that 4G to 8G servers looks stable under various workload in my experience.

    Then, at least, 12.5% to 25% of "Total Memory - Hugepages" memory should be
    under ZONE_NORMAL. But this is from experience of 32bit/SMP :(


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