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Date: Fri, 12 Jul 2013 14:25:57 +0200
From: Borislav Petkov <bp@suse.de>
Subject: Re: [-] drop_caches-add-some-documentation-and-info-messsge.patch
 removed from -mm tree
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To: Michal Hocko <mhocko@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>, kosaki.motohiro@jp.fujitsu.com, kamezawa.hiroyu@jp.fujitsu.com, linux-mm@kvack.org, Borislav Petkov <bp@suse.de>, Dave Hansen <dave.hansen@intel.com>

On Fri, Jul 12, 2013 at 01:50:28PM +0200, Michal Hocko wrote:
> Boris then noted
> (http://lkml.indiana.edu/hypermail/linux/kernel/1210.3/00659.html)
> that he is using drop_caches to make s2ram faster but as others noted
> this just adds the overhead to the resume path so it might work only
> for certain use cases so a user space solution is more appropriate and
> Boris' use case really sounds valid.

FWIW, I still use it. :-)

And we recently validated anew, a good use case for drop_caches which
was actually already mentioned - repeatable benchmark runs. In this
case, we show how *not* to use it in those benchmark runs. :)

http://marc.info/?l=linux-kernel&m=137276096923390

Thanks.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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