Re: [PATCH] mm: forbid lumpy-reclaim in shrink_active_list()

[Rik van Riel]

On 03/19/2012 04:05 PM, Hugh Dickins wrote:
> On Mon, 19 Mar 2012, Rik van Riel wrote:

> > It was done that way, because Mel explained to me that deactivating
> > a whole chunk of active pages at once is a desired feature that makes
> > it more likely that a whole contiguous chunk of pages will eventually
> > reach the end of the inactive list.
>
> I'm rather sceptical about this: is there a test which demonstrates
> a useful effect of that kind?

I am somewhat sceptical too, but since lumpy reclaim is
due to be removed anyway, I did not bother to investigate
its behaviour in any detail :)

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