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    SubjectRe: [PATCH 0/4] Swap migration V3: Overview
    Marcelo Tosatti <marcelo.tosatti@cyclades.com> wrote:
    >
    > The fair approach would be to have the
    > number of pages to reclaim also relative to zone size.
    >
    > sc->nr_to_reclaim = (zone->present_pages * sc->swap_cluster_max) /
    > total_memory;

    You can try it, but that shouldn't matter. SWAP_CLUSTER_MAX is just a
    batching factor used to reduce CPU consumption. If you make it twice as
    bug, we run DMA-zone reclaim half as often - it should balance out.

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