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SubjectRe: [PATCH 0/4] Swap migration V3: Overview
Marcelo Tosatti <> 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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