From: Borislav Petkov <bp@alien8.de>
To: Pavel Machek <pavel@ucw.cz>
Cc: Jiri Kosina <jkosina@suse.cz>,
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: Wed, 31 Oct 2012 18:46:01 +0100 [thread overview]
Message-ID: <20121031174601.GI24389@liondog.tnic> (raw)
In-Reply-To: <20121031173154.GA20660@elf.ucw.cz>
On Wed, Oct 31, 2012 at 06:31:54PM +0100, Pavel Machek wrote:
> Hmm? When I resume from hibernate, I want to use my machine.
Well, in my case with a workstation with 8 Gb, the only time the swapin
is noticeable is when I try to use firefox with a couple of dozens tabs
open. Once that thing is swapped in, system perf is back to normal.
I'll bet that even this slowdown would disappear if I use an SSD.
But I can imagine some workloads where swapping everything back in could
be discomforting.
> Kernel will not normally swap anything in automatically. Some people
> do swapoff -a; swapon -a to work around that. (And yes, maybe some
> automatic-swap-in-when-there's-plenty-of-RAM would be useful.).
That's a good idea, actually.
So, in any case, the current situation is fine as it is, I'd say: people
can decide whether they want to drop caches before suspending or not.
Problem solved.
Thanks.
--
Regards/Gruss,
Boris.
next prev parent reply other threads:[~2012-10-31 17:46 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
2012-10-29 10:11 ` Borislav Petkov
2012-10-31 17:31 ` Pavel Machek
2012-10-31 17:46 ` Borislav Petkov [this message]
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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