Re: [PATCH] add some drop_caches documentation and info messsge

From: Jiri Kosina
Date: Mon Oct 29 2012 - 06:01:58 EST


On Mon, 29 Oct 2012, Borislav Petkov wrote:

> > You might or might not want to do that. Dropping caches around suspend
> > makes the hibernation process itself faster, but the realtime response
> > of the applications afterwards is worse, as everything touched by user
> > has to be paged in again.
>
> Right, do you know of a real use-case where people hibernate, then
> resume and still care about applications response time right afterwards?

Well if the point of dropping caches is lowering the resume time, then the
point is rendered moot as soon as you switch to your browser and have to
wait noticeable amount of time until it starts reacting.

--
Jiri Kosina
SUSE Labs
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