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    SubjectRe: [RFC PATCH 0/8] Reduce filesystem writeback from page reclaim v2
    On Thu, Jul 28, 2011 at 12:38:52PM +0100, Mel Gorman wrote:
    > On Thu, Jul 28, 2011 at 01:18:21AM +0900, Minchan Kim wrote:
    > > On Thu, Jul 21, 2011 at 05:28:42PM +0100, Mel Gorman wrote:
    > > > Note how preventing kswapd reclaiming dirty pages pushes up its CPU

    <snip>

    > > > usage as it scans more pages but it does not get excessive due to
    > > > the throttling.
    > >
    > > Good to hear.
    > > The concern of this patchset was early OOM kill with too many scanning.
    > > I can throw such concern out from now on.
    > >
    >
    > At least, I haven't been able to trigger a premature OOM.

    AFAIR, Andrew had a premature OOM problem[1] but I couldn't track down at that time.
    I think this patch series might solve his problem. Although it doesn't, it should not accelerate
    his problem, at least.

    Andrew, Could you test this patchset?

    [1] https://lkml.org/lkml/2011/5/25/415
    --
    Kind regards,
    Minchan Kim


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