From: Jiri Kosina <jkosina@suse.cz>
To: Borislav Petkov <bp@alien8.de>
Cc: Andrew Morton <akpm@linux-foundation.org>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
Dave Hansen <dave@linux.vnet.ibm.com>,
Michal Hocko <mhocko@suse.cz>,
linux-mm@kvack.org,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] add some drop_caches documentation and info messsge
Date: Mon, 29 Oct 2012 11:01:59 +0100 (CET) [thread overview]
Message-ID: <alpine.LNX.2.00.1210291100470.19184@pobox.suse.cz> (raw)
In-Reply-To: <20121029095819.GA4326@liondog.tnic>
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
next prev parent reply other threads:[~2012-10-29 10:02 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-12 12:57 [PATCH] add some drop_caches documentation and info messsge Michal Hocko
2012-10-12 18:54 ` KOSAKI Motohiro
2012-10-15 9:04 ` Kamezawa Hiroyuki
2012-10-15 14:05 ` Dave Hansen
2012-10-23 23:45 ` Andrew Morton
2012-10-24 6:29 ` Michal Hocko
2012-10-24 19:54 ` Andrew Morton
2012-10-24 20:28 ` Dave Hansen
2012-10-24 20:48 ` Andrew Morton
2012-10-24 21:06 ` Borislav Petkov
2012-10-24 21:13 ` Andrew Morton
2012-10-24 22:04 ` Rafael J. Wysocki
2012-10-25 1:17 ` Andrew Morton
2012-10-25 20:16 ` Rafael J. Wysocki
2012-10-29 8:59 ` Jiri Kosina
2012-10-29 9:58 ` Borislav Petkov
2012-10-29 10:01 ` Jiri Kosina [this message]
2012-10-29 10:11 ` Borislav Petkov
2012-10-31 17:31 ` Pavel Machek
2012-10-31 17:46 ` Borislav Petkov
2012-10-24 22:35 ` KOSAKI Motohiro
2012-10-25 14:21 ` Michal Hocko
2012-10-24 21:18 ` Dave Hansen
2012-10-24 22:48 ` Borislav Petkov
2012-10-24 22:57 ` Dave Hansen
2012-10-25 0:56 ` KOSAKI Motohiro
2012-10-25 9:24 ` Borislav Petkov
2012-10-25 11:57 ` Dave Hansen
2012-10-25 14:24 ` Borislav Petkov
2012-10-25 14:25 ` Michal Hocko
2012-10-26 7:45 ` Mika Boström
2012-11-01 20:26 ` Pavel Machek
2012-10-25 14:09 ` Michal Hocko
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