Re: [PATCH 3/4] Count the number of times zone_reclaim() scans andfails

From: Mel Gorman
Date: Wed Jun 10 2009 - 06:36:35 EST


On Wed, Jun 10, 2009 at 10:47:20AM +0900, KOSAKI Motohiro wrote:
> Hi
>
> I like this patch. thank you mel.
>
> > @@ -2489,6 +2489,10 @@ int zone_reclaim(struct zone *zone, gfp_t gfp_mask, unsigned int order)
> > ret = __zone_reclaim(zone, gfp_mask, order);
> > zone_clear_flag(zone, ZONE_RECLAIM_LOCKED);
> >
> > + if (!ret) {
> > + count_vm_events(PGSCAN_ZONERECLAIM_FAILED, 1);
> > + }
> > +
> > return ret;
>
> count_vm_event(PGSCAN_ZONERECLAIM_FAILED)?
>

/me slaps self

Yes, that makes more sense.

--
Mel Gorman
Part-time Phd Student Linux Technology Center
University of Limerick IBM Dublin Software Lab
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