From: Mike Galbraith <efault@gmx.de>
To: "Carlos R. Mafra" <crmafra2@gmail.com>
Cc: Jan Knutar <jk-lkml@sci.fi>,
linux-kernel@vger.kernel.org, Hans-Peter Jansen <hpj@urpla.net>,
Jiri Kosina <jkosina@suse.cz>,
David Newall <davidn@davidnewall.com>,
Theodore Tso <tytso@mit.edu>, "Fred ." <eldmannen@gmail.com>
Subject: Re: Keys get stuck
Date: Thu, 13 Mar 2008 13:21:43 +0100 [thread overview]
Message-ID: <1205410903.6686.61.camel@marge.simson.net> (raw)
In-Reply-To: <20080313120238.GA3860@localhost.ift.unesp.br>
On Thu, 2008-03-13 at 09:02 -0300, Carlos R. Mafra wrote:
> On Thu 13.Mar'08 at 12:28:13 +0100, Mike Galbraith wrote:
> >[...]
> > Swap can definitely keep X off the cpu for extended periods,
> >[...]
>
> So I would like to ask if swap letting X (and everything else
> in my experience) out of the cpu for extended periods is
> considered normal behaviour, in the sense that nobody is
> trying to "fix" it (due to it being considered impossible
> to fix)...?
No, it's not normal. I'd say the VM makes bad decisions if _moderate_
swapping behaves badly. Heavy swapping is another story. (I think Rik
is addressing some VM issues as we speak, so hopefully it will improve
soonish)
> Sorry for being off-topic, but I run a minimal Window Maker
> desktop in a P4 3.0 GHz with 512 MB of RAM (around 140 MB
> being used as per 'free'), and trying to load a 380 MB text
> file in xjed editor makes my whole desktop quite unfair...
> it takes tens of seconds to switch desktop, type things in
> the terminal etc.
>
> When xjed finishes loading the text file, everything comes
> back to "fair" again.
>
> Is there some law in the nature of computers which says
> that when swapping everything else waits for swap to finish
> its business? I hope not :-)
Me too. In the past, I tested swap heavily (and beat it into submission
when it misbehaved for me), but haven't tested swap performance since
becoming fairly ram-wealthy.
-Mike
next prev parent reply other threads:[~2008-03-13 12:21 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-11 23:32 Keys get stuck Fred .
2008-03-12 0:04 ` Andrew Morton
2008-03-12 8:48 ` Sebastien Dugue
2008-03-12 10:32 ` Jiri Kosina
2008-03-12 10:44 ` David Newall
2008-03-12 14:47 ` Theodore Tso
2008-03-12 15:20 ` Stephen Hemminger
2008-03-12 16:47 ` David Newall
2008-03-12 16:49 ` Jiri Kosina
2008-03-12 21:22 ` Hans-Peter Jansen
2008-03-13 5:42 ` Mike Galbraith
2008-03-13 9:48 ` Jan Knutar
2008-03-13 11:28 ` Mike Galbraith
2008-03-13 11:31 ` Jiri Kosina
2008-03-13 12:02 ` Mike Galbraith
2008-03-13 12:02 ` Carlos R. Mafra
2008-03-13 12:06 ` Jiri Kosina
2008-03-13 12:19 ` Carlos R. Mafra
2008-03-13 12:21 ` Mike Galbraith [this message]
2008-03-13 14:18 ` Helge Hafting
2008-03-13 15:13 ` Swap makes X unfair (was Re: Keys get stuck) Carlos R. Mafra
2008-03-14 11:02 ` Helge Hafting
2008-03-15 22:11 ` Carlos R. Mafra
2008-03-16 15:27 ` Jan Knutar
2008-03-14 18:34 ` Keys get stuck Pavel Machek
2008-03-13 17:14 ` Pavel Machek
2008-03-13 17:56 ` Fred .
2008-03-13 18:03 ` Pavel Machek
2008-03-14 9:21 ` Jiri Kosina
2008-03-14 18:24 ` Pavel Machek
2008-03-14 21:34 ` Lennart Sorensen
2008-03-14 13:30 ` Lennart Sorensen
2008-03-14 19:35 ` Pavel Machek
2008-03-13 13:01 ` Mark Lord
[not found] <a6meN-2aj-39@gated-at.bofh.it>
[not found] ` <a6wxo-1xY-1@gated-at.bofh.it>
[not found] ` <a6wQO-1YG-1@gated-at.bofh.it>
[not found] ` <a6Zgb-5Hj-55@gated-at.bofh.it>
[not found] ` <a7iiO-2fq-39@gated-at.bofh.it>
2008-03-14 20:20 ` Bodo Eggert
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