Re: [PATCH 1/3] Reintroduce zone_reclaim_interval for when zone_reclaim()scans and fails to avoid CPU spinning at 100% on NUMA

From: Christoph Lameter
Date: Mon Jun 08 2009 - 10:56:22 EST

On Mon, 8 Jun 2009, Mel Gorman wrote:

> > The tmpfs pages are unreclaimable and therefore should not be on the anon
> > lru.
> >
> tmpfs pages can be swap-backed so can be reclaimable. Regardless of what
> list they are on, we still need to know how many of them there are if
> this patch is to be avoided.

If they are reclaimable then why does it matter? They can be pushed out if
you configure zone reclaim to be that aggressive.

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