From: Bruno Wolff III <bruno@wolff.to>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Thorsten Leemhuis <fedora@leemhuis.info>,
Mel Gorman <mgorman@suse.de>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Rik van Riel <riel@redhat.com>,
George Spelvin <linux@horizon.com>,
Johannes Hirte <johannes.hirte@fem.tu-ilmenau.de>,
Tomas Racek <tracek@redhat.com>, Jan Kara <jack@suse.cz>,
Dave Hansen <dave@linux.vnet.ibm.com>,
Josh Boyer <jwboyer@gmail.com>,
Valdis Kletnieks <Valdis.Kletnieks@vt.edu>,
Jiri Slaby <jslaby@suse.cz>, Zdenek Kabelac <zkabelac@redhat.com>,
linux-mm <linux-mm@kvack.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
John Ellson <john.ellson@comcast.net>
Subject: Re: kswapd craziness in 3.7
Date: Tue, 4 Dec 2012 21:01:33 -0600 [thread overview]
Message-ID: <20121205030133.GA17438@wolff.to> (raw)
In-Reply-To: <20121204214210.GB20253@cmpxchg.org>
On Tue, Dec 04, 2012 at 16:42:10 -0500,
Johannes Weiner <hannes@cmpxchg.org> wrote:
> kernel-3.7.0-0.rc7.git1.2.van.main.knurd.kswap.4.fc18.i686
>and
> kernel-3.7.0-0.rc7.git1.2.van.main.knurd.kswap.4.fc18.x86_64
>for over 24hours with no evidence of problems with kswapd"
>
>Now waiting for results from Jiri, Zdenek and Bruno...
I have been running 3.7.0-0.rc7.git1.2.van.main.knurd.kswap.4.fc18.i686.PAE
a bit over 23 hours and kswapd has accumalated one minute 8 seconds of
CPU time. I did several yum operations during that time and didn't see
kswapd spike to 90+% CPU usage as I had seen in the past. With some kernels
I wasn't reliably triggering the kswapd issue, so it may not be long enough
to know for sure that the problem is fixed.
I also should note that when I tried 3.7.0-0.rc7.git3.2.fc19.i686.PAE I
did see problems with kswapd hitting 90+% usage of a CPU.
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WARNING: multiple messages have this Message-ID (diff)
From: Bruno Wolff III <bruno@wolff.to>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Thorsten Leemhuis <fedora@leemhuis.info>,
Mel Gorman <mgorman@suse.de>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Rik van Riel <riel@redhat.com>,
George Spelvin <linux@horizon.com>,
Johannes Hirte <johannes.hirte@fem.tu-ilmenau.de>,
Tomas Racek <tracek@redhat.com>, Jan Kara <jack@suse.cz>,
Dave Hansen <dave@linux.vnet.ibm.com>,
Josh Boyer <jwboyer@gmail.com>,
Valdis Kletnieks <Valdis.Kletnieks@vt.edu>,
Jiri Slaby <jslaby@suse.cz>, Zdenek Kabelac <zkabelac@redhat.com>,
linux-mm <linux-mm@kvack.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
John Ellson <john.ellson@comcast.net>
Subject: Re: kswapd craziness in 3.7
Date: Tue, 4 Dec 2012 21:01:33 -0600 [thread overview]
Message-ID: <20121205030133.GA17438@wolff.to> (raw)
In-Reply-To: <20121204214210.GB20253@cmpxchg.org>
On Tue, Dec 04, 2012 at 16:42:10 -0500,
Johannes Weiner <hannes@cmpxchg.org> wrote:
> kernel-3.7.0-0.rc7.git1.2.van.main.knurd.kswap.4.fc18.i686
>and
> kernel-3.7.0-0.rc7.git1.2.van.main.knurd.kswap.4.fc18.x86_64
>for over 24hours with no evidence of problems with kswapd"
>
>Now waiting for results from Jiri, Zdenek and Bruno...
I have been running 3.7.0-0.rc7.git1.2.van.main.knurd.kswap.4.fc18.i686.PAE
a bit over 23 hours and kswapd has accumalated one minute 8 seconds of
CPU time. I did several yum operations during that time and didn't see
kswapd spike to 90+% CPU usage as I had seen in the past. With some kernels
I wasn't reliably triggering the kswapd issue, so it may not be long enough
to know for sure that the problem is fixed.
I also should note that when I tried 3.7.0-0.rc7.git3.2.fc19.i686.PAE I
did see problems with kswapd hitting 90+% usage of a CPU.
next prev parent reply other threads:[~2012-12-05 3:02 UTC|newest]
Thread overview: 129+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-27 20:48 kswapd craziness in 3.7 Johannes Weiner
2012-11-27 20:48 ` Johannes Weiner
2012-11-27 20:48 ` [patch] mm: vmscan: fix kswapd endless loop on higher order allocation Johannes Weiner
2012-11-27 20:48 ` Johannes Weiner
2012-11-27 20:58 ` kswapd craziness in 3.7 Linus Torvalds
2012-11-27 20:58 ` Linus Torvalds
2012-11-27 21:16 ` Rik van Riel
2012-11-27 21:16 ` Rik van Riel
2012-11-27 21:49 ` Johannes Weiner
2012-11-27 21:49 ` Johannes Weiner
2012-11-27 22:02 ` Rik van Riel
2012-11-27 22:02 ` Rik van Riel
2012-11-27 22:26 ` Johannes Weiner
2012-11-27 22:26 ` Johannes Weiner
2012-11-27 23:19 ` Linus Torvalds
2012-11-27 23:19 ` Linus Torvalds
2012-11-28 10:13 ` Mel Gorman
2012-11-28 10:13 ` Mel Gorman
2012-11-28 10:51 ` Thorsten Leemhuis
2012-11-28 10:51 ` Thorsten Leemhuis
2012-11-28 16:42 ` Mel Gorman
2012-11-28 16:42 ` Mel Gorman
2012-11-28 22:52 ` Andrew Morton
2012-11-28 22:52 ` Andrew Morton
2012-11-28 23:54 ` Mel Gorman
2012-11-28 23:54 ` Mel Gorman
2012-11-29 0:14 ` Andrew Morton
2012-11-29 0:14 ` Andrew Morton
2012-11-29 15:30 ` Thorsten Leemhuis
2012-11-29 15:30 ` Thorsten Leemhuis
2012-11-29 17:05 ` Johannes Weiner
2012-11-29 17:05 ` Johannes Weiner
2012-11-30 12:39 ` Thorsten Leemhuis
2012-11-30 12:39 ` Thorsten Leemhuis
2012-12-01 0:45 ` Johannes Weiner
2012-12-01 0:45 ` Johannes Weiner
2012-12-03 8:30 ` Thorsten Leemhuis
2012-12-03 8:30 ` Thorsten Leemhuis
2012-12-03 13:08 ` Fedora repo (was: Re: kswapd craziness in 3.7) Borislav Petkov
2012-12-03 13:08 ` Borislav Petkov
2012-12-03 19:42 ` kswapd craziness in 3.7 Johannes Weiner
2012-12-03 19:42 ` Johannes Weiner
2012-12-04 21:42 ` Johannes Weiner
2012-12-04 21:42 ` Johannes Weiner
2012-12-05 3:01 ` Bruno Wolff III [this message]
2012-12-05 3:01 ` Bruno Wolff III
2012-12-06 17:37 ` Bruno Wolff III
2012-12-06 17:37 ` Bruno Wolff III
2012-12-06 19:31 ` Linus Torvalds
2012-12-06 19:31 ` Linus Torvalds
2012-12-06 19:43 ` Rik van Riel
2012-12-06 19:43 ` Rik van Riel
2012-12-06 20:23 ` Johannes Weiner
2012-12-06 20:23 ` Johannes Weiner
2012-12-06 20:32 ` Rik van Riel
2012-12-06 20:32 ` Rik van Riel
2012-12-08 12:06 ` Zlatko Calusic
2012-12-08 12:06 ` Zlatko Calusic
2012-12-08 21:22 ` Zlatko Calusic
2012-12-08 21:22 ` Zlatko Calusic
2012-12-09 1:01 ` Linus Torvalds
2012-12-09 1:01 ` Linus Torvalds
2012-12-09 21:59 ` Zdenek Kabelac
2012-12-09 21:59 ` Zdenek Kabelac
2012-12-10 11:03 ` Mel Gorman
2012-12-10 11:03 ` Mel Gorman
2012-12-10 16:39 ` Johannes Weiner
2012-12-10 16:39 ` Johannes Weiner
2012-12-10 18:01 ` Mel Gorman
2012-12-10 18:01 ` Mel Gorman
2012-12-10 18:33 ` Zlatko Calusic
2012-12-10 18:33 ` Zlatko Calusic
2012-12-10 19:13 ` Linus Torvalds
2012-12-10 19:13 ` Linus Torvalds
2012-12-10 20:35 ` Zlatko Calusic
2012-12-10 20:35 ` Zlatko Calusic
2012-12-10 21:28 ` Linus Torvalds
2012-12-10 21:28 ` Linus Torvalds
2012-12-10 21:42 ` Borislav Petkov
2012-12-10 21:42 ` Borislav Petkov
2012-12-10 21:47 ` Linus Torvalds
2012-12-10 21:47 ` Linus Torvalds
2012-12-10 21:54 ` Borislav Petkov
2012-12-10 21:54 ` Borislav Petkov
2012-12-10 22:15 ` Zlatko Calusic
2012-12-10 22:15 ` Zlatko Calusic
2012-12-10 23:27 ` Hugh Dickins
2012-12-10 23:27 ` Hugh Dickins
2012-12-11 0:19 ` Zlatko Calusic
2012-12-11 21:56 ` Zlatko Calusic
2012-12-11 21:56 ` Zlatko Calusic
2012-12-19 22:24 ` Zlatko Calusic
2012-12-19 22:24 ` Zlatko Calusic
2012-12-10 18:29 ` Zlatko Calusic
2012-12-10 18:29 ` Zlatko Calusic
2012-12-06 8:09 ` Thorsten Leemhuis
2012-12-06 8:09 ` Thorsten Leemhuis
2012-11-27 21:29 ` Johannes Weiner
2012-11-27 21:29 ` Johannes Weiner
2012-11-28 13:35 ` Zdenek Kabelac
2012-11-28 13:35 ` Zdenek Kabelac
2012-11-28 14:04 ` Jiri Slaby
2012-11-28 14:04 ` Jiri Slaby
2012-11-28 9:45 ` Mel Gorman
2012-11-28 9:45 ` Mel Gorman
2012-12-03 15:23 ` Zdenek Kabelac
2012-12-03 15:23 ` Zdenek Kabelac
2012-12-03 19:18 ` Johannes Weiner
2012-12-03 19:18 ` Johannes Weiner
2012-12-04 9:05 ` Zdenek Kabelac
2012-12-04 9:05 ` Zdenek Kabelac
2012-12-04 9:15 ` Jiri Slaby
2012-12-04 9:15 ` Jiri Slaby
2012-12-04 16:11 ` Johannes Weiner
2012-12-04 16:11 ` Johannes Weiner
2012-12-04 16:22 ` Jiri Slaby
2012-12-04 16:22 ` Jiri Slaby
2012-12-04 19:50 ` Johannes Weiner
2012-12-04 19:50 ` Johannes Weiner
2012-12-08 10:35 ` Jiri Slaby
2012-12-08 10:35 ` Jiri Slaby
2012-12-04 16:15 ` Johannes Weiner
2012-12-04 16:15 ` Johannes Weiner
2012-12-06 13:51 ` Zdenek Kabelac
2012-12-06 13:51 ` Zdenek Kabelac
2012-12-03 13:14 ` Jiri Slaby
2012-12-03 13:14 ` Jiri Slaby
2012-12-04 8:55 ` Jiri Slaby
2012-12-04 8:55 ` Jiri Slaby
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