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From: Bruno Wolff III <bruno@wolff.to>
To: Josh Boyer <jwboyer@gmail.com>
Cc: Mel Gorman <mgorman@suse.de>,
	Zdenek Kabelac <zkabelac@redhat.com>,
	Seth Jennings <sjenning@linux.vnet.ibm.com>,
	Jiri Slaby <jslaby@suse.cz>,
	Valdis.Kletnieks@vt.edu, Jiri Slaby <jirislaby@gmail.com>,
	linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Rik van Riel <riel@redhat.com>,
	Robert Jennings <rcj@linux.vnet.ibm.com>,
	Thorsten Leemhuis <fedora@leemhuis.info>
Subject: Re: [PATCH] Revert "mm: remove __GFP_NO_KSWAPD"
Date: Tue, 20 Nov 2012 10:13:15 -0600	[thread overview]
Message-ID: <20121120161315.GA8338@wolff.to> (raw)
In-Reply-To: <CA+5PVA7__=JcjLAhs5cpVK-WaZbF5bQhp5WojBJsdEt9SnG3cw@mail.gmail.com>

On Tue, Nov 20, 2012 at 10:38:45 -0500,
   Josh Boyer <jwboyer@gmail.com> wrote:
>
>We've been tracking it in https://bugzilla.redhat.com/show_bug.cgi?id=866988
>and people say this revert patch doesn't seem to make the issue go away
>fully.  Thorsten has created another kernel with the other patch applied
>for testing.
>
>At least I think that is the latest status from the bug.  Hopefully the
>commenters will chime in.

I am seeing kswapd0 hogging a cpu right now. I have two rsyncs and an md sync 
running and a couple of large memory processes (java and firefox) idle.

I haven't been seeing this happen as often as previously. Before doing a 
yum update with an rsync was pretty good at triggering the problem. Now, 
not so much.

  reply	other threads:[~2012-11-20 16:14 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-11  8:52 kswapd0: wxcessive CPU usage Jiri Slaby
2012-10-11 13:44 ` Valdis.Kletnieks
2012-10-11 15:34   ` Jiri Slaby
2012-10-11 17:56     ` Valdis.Kletnieks
2012-10-11 17:59       ` Jiri Slaby
2012-10-11 18:19         ` Valdis.Kletnieks
2012-10-11 22:08           ` kswapd0: excessive " Jiri Slaby
2012-10-12 12:37             ` Jiri Slaby
2012-10-12 13:57               ` Mel Gorman
2012-10-15  9:54                 ` Jiri Slaby
2012-10-15 11:09                   ` Mel Gorman
2012-10-29 10:52                     ` Thorsten Leemhuis
2012-10-30 19:18                       ` Mel Gorman
2012-10-31 11:25                         ` Thorsten Leemhuis
2012-10-31 15:04                           ` Mel Gorman
2012-11-04 16:36                         ` Rik van Riel
2012-11-02 10:44                     ` Zdenek Kabelac
2012-11-02 10:53                       ` Jiri Slaby
2012-11-02 19:45                         ` Jiri Slaby
2012-11-04 11:26                           ` Zdenek Kabelac
2012-11-05 14:24                           ` [PATCH] Revert "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures" Mel Gorman
2012-11-06 10:15                             ` Johannes Hirte
2012-11-09  8:36                               ` Mel Gorman
2012-11-14 21:43                                 ` Johannes Hirte
2012-11-09  9:12                             ` Mel Gorman
2012-11-09  4:22                           ` kswapd0: excessive CPU usage Seth Jennings
2012-11-09  8:07                             ` Zdenek Kabelac
2012-11-09  9:06                               ` Mel Gorman
2012-11-11  9:13                                 ` Zdenek Kabelac
2012-11-12 11:37                                   ` [PATCH] Revert "mm: remove __GFP_NO_KSWAPD" Mel Gorman
2012-11-16 19:14                                     ` Josh Boyer
2012-11-16 19:51                                       ` Andrew Morton
2012-11-20  1:43                                         ` Valdis.Kletnieks
2012-11-16 20:06                                       ` Mel Gorman
2012-11-20 15:38                                         ` Josh Boyer
2012-11-20 16:13                                           ` Bruno Wolff III [this message]
2012-11-20 17:43                                           ` Thorsten Leemhuis
2012-11-23 15:20                                             ` Thorsten Leemhuis
2012-11-27 11:12                                               ` Mel Gorman
2012-11-21 15:08                                           ` Mel Gorman
2012-11-20  9:18                                     ` Glauber Costa
2012-11-20 20:18                                       ` Andrew Morton
2012-11-21  8:30                                         ` Glauber Costa
2012-11-12 12:19                                   ` kswapd0: excessive CPU usage Mel Gorman
2012-11-12 13:13                                     ` Zdenek Kabelac
2012-11-12 13:31                                       ` Mel Gorman
2012-11-12 14:50                                         ` Zdenek Kabelac
2012-11-18 19:00                                         ` Zdenek Kabelac
2012-11-18 19:07                                           ` Jiri Slaby
2012-11-09  8:40                             ` Mel Gorman
2012-10-11 22:14 ` kswapd0: wxcessive " Andrew Morton
2012-10-11 22:26   ` Jiri Slaby

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