Re: [PATCH 3/3] mm,vmscan: Reclaim order-0 and compact instead oflumpy reclaim when under light pressure

[Mel Gorman]

On Thu, Nov 11, 2010 at 07:07:04PM +0000, Mel Gorman wrote:
> +	if (COMPACTION_BUILD)
> +		sc->lumpy_reclaim_mode = LUMPY_MODE_COMPACTION;
> +	else
> +		sc->lumpy_reclaim_mode = LUMPY_MODE_CONTIGRECLAIM;
>  

Gack, I posted the slightly wrong version. This version prevents lumpy
reclaim ever being used. The figures I posted were for a patch where
this condition looked like

        if (COMPACTION_BUILD && priority > DEF_PRIORITY - 2)
                sc->lumpy_reclaim_mode = LUMPY_MODE_COMPACTION;
        else
                sc->lumpy_reclaim_mode = LUMPY_MODE_CONTIGRECLAIM;

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