From: Daniel Vetter <daniel@ffwll.ch>
To: Mel Gorman <mgorman@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>,
Dave Chinner <david@fromorbit.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com,
dri-devel@lists.freedesktop.org,
Keith Packard <keithp@keithp.com>,
Eugeni Dodonov <eugeni.dodonov@intel.com>,
Daniel Vetter <daniel.vetter@ffwll.ch>,
Chris Wilson <chris@chris-wilson.co.uk>
Subject: Re: [MMTests] IO metadata on XFS
Date: Tue, 3 Jul 2012 16:04:01 +0200 [thread overview]
Message-ID: <20120703140401.GB5103@phenom.ffwll.local> (raw)
In-Reply-To: <20120703130414.GD14154@suse.de>
On Tue, Jul 03, 2012 at 02:04:14PM +0100, Mel Gorman wrote:
> On Mon, Jul 02, 2012 at 08:35:16PM +0100, Mel Gorman wrote:
> > > <SNIP>
> > >
> > It was obvious very quickly that there were two distinct regression so I
> > ran two bisections. One led to a XFS and the other led to an i915 patch
> > that enables RC6 to reduce power usage.
> >
> > [c999a223: xfs: introduce an allocation workqueue]
> > [aa464191: drm/i915: enable plain RC6 on Sandy Bridge by default]
> >
> > gdm was running on the machine so i915 would have been in use.
>
> Bah, more PEBKAC. gdm was *not* running on this machine. i915 is loaded
> but X is not.
See my little explanation of rc6, just loading the driver will have
effects. But I'm happy to know that the issue also happens without using
it, makes it really unlikely it's an issue with the gpu or i915.ko ;-)
-Daniel
--
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48
WARNING: multiple messages have this Message-ID (diff)
From: Daniel Vetter <daniel@ffwll.ch>
To: Mel Gorman <mgorman@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>,
Dave Chinner <david@fromorbit.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com,
dri-devel@lists.freedesktop.org,
Keith Packard <keithp@keithp.com>,
Eugeni Dodonov <eugeni.dodonov@intel.com>,
Daniel Vetter <daniel.vetter@ffwll.ch>,
Chris Wilson <chris@chris-wilson.co.uk>
Subject: Re: [MMTests] IO metadata on XFS
Date: Tue, 3 Jul 2012 16:04:01 +0200 [thread overview]
Message-ID: <20120703140401.GB5103@phenom.ffwll.local> (raw)
In-Reply-To: <20120703130414.GD14154@suse.de>
On Tue, Jul 03, 2012 at 02:04:14PM +0100, Mel Gorman wrote:
> On Mon, Jul 02, 2012 at 08:35:16PM +0100, Mel Gorman wrote:
> > > <SNIP>
> > >
> > It was obvious very quickly that there were two distinct regression so I
> > ran two bisections. One led to a XFS and the other led to an i915 patch
> > that enables RC6 to reduce power usage.
> >
> > [c999a223: xfs: introduce an allocation workqueue]
> > [aa464191: drm/i915: enable plain RC6 on Sandy Bridge by default]
> >
> > gdm was running on the machine so i915 would have been in use.
>
> Bah, more PEBKAC. gdm was *not* running on this machine. i915 is loaded
> but X is not.
See my little explanation of rc6, just loading the driver will have
effects. But I'm happy to know that the issue also happens without using
it, makes it really unlikely it's an issue with the gpu or i915.ko ;-)
-Daniel
--
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48
--
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WARNING: multiple messages have this Message-ID (diff)
From: Daniel Vetter <daniel@ffwll.ch>
To: Mel Gorman <mgorman@suse.de>
Cc: Keith Packard <keithp@keithp.com>,
Chris Wilson <chris@chris-wilson.co.uk>,
Daniel Vetter <daniel.vetter@ffwll.ch>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
xfs@oss.sgi.com, Christoph Hellwig <hch@infradead.org>,
linux-mm@kvack.org, linux-fsdevel@vger.kernel.org,
Eugeni Dodonov <eugeni.dodonov@intel.com>
Subject: Re: [MMTests] IO metadata on XFS
Date: Tue, 3 Jul 2012 16:04:01 +0200 [thread overview]
Message-ID: <20120703140401.GB5103@phenom.ffwll.local> (raw)
In-Reply-To: <20120703130414.GD14154@suse.de>
On Tue, Jul 03, 2012 at 02:04:14PM +0100, Mel Gorman wrote:
> On Mon, Jul 02, 2012 at 08:35:16PM +0100, Mel Gorman wrote:
> > > <SNIP>
> > >
> > It was obvious very quickly that there were two distinct regression so I
> > ran two bisections. One led to a XFS and the other led to an i915 patch
> > that enables RC6 to reduce power usage.
> >
> > [c999a223: xfs: introduce an allocation workqueue]
> > [aa464191: drm/i915: enable plain RC6 on Sandy Bridge by default]
> >
> > gdm was running on the machine so i915 would have been in use.
>
> Bah, more PEBKAC. gdm was *not* running on this machine. i915 is loaded
> but X is not.
See my little explanation of rc6, just loading the driver will have
effects. But I'm happy to know that the issue also happens without using
it, makes it really unlikely it's an issue with the gpu or i915.ko ;-)
-Daniel
--
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48
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xfs@oss.sgi.com
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next prev parent reply other threads:[~2012-07-03 14:04 UTC|newest]
Thread overview: 108+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-20 11:32 MMTests 0.04 Mel Gorman
2012-06-20 11:32 ` Mel Gorman
2012-06-29 11:19 ` Mel Gorman
2012-06-29 11:19 ` Mel Gorman
2012-06-29 11:21 ` [MMTests] Page allocator Mel Gorman
2012-06-29 11:21 ` Mel Gorman
2012-06-29 11:22 ` [MMTests] Network performance Mel Gorman
2012-06-29 11:22 ` Mel Gorman
2012-06-29 11:23 ` [MMTests] IO metadata on ext3 Mel Gorman
2012-06-29 11:23 ` Mel Gorman
2012-06-29 11:24 ` [MMTests] IO metadata on ext4 Mel Gorman
2012-06-29 11:24 ` Mel Gorman
2012-06-29 11:25 ` [MMTests] IO metadata on XFS Mel Gorman
2012-06-29 11:25 ` Mel Gorman
2012-06-29 11:25 ` Mel Gorman
2012-07-01 23:54 ` Dave Chinner
2012-07-01 23:54 ` Dave Chinner
2012-07-01 23:54 ` Dave Chinner
2012-07-02 6:32 ` Christoph Hellwig
2012-07-02 6:32 ` Christoph Hellwig
2012-07-02 6:32 ` Christoph Hellwig
2012-07-02 14:32 ` Mel Gorman
2012-07-02 14:32 ` Mel Gorman
2012-07-02 14:32 ` Mel Gorman
2012-07-02 19:35 ` Mel Gorman
2012-07-02 19:35 ` Mel Gorman
2012-07-02 19:35 ` Mel Gorman
2012-07-03 0:19 ` Dave Chinner
2012-07-03 0:19 ` Dave Chinner
2012-07-03 0:19 ` Dave Chinner
2012-07-03 10:59 ` Mel Gorman
2012-07-03 10:59 ` Mel Gorman
2012-07-03 10:59 ` Mel Gorman
2012-07-03 11:44 ` Mel Gorman
2012-07-03 11:44 ` Mel Gorman
2012-07-03 11:44 ` Mel Gorman
2012-07-03 12:31 ` Daniel Vetter
2012-07-03 12:31 ` Daniel Vetter
2012-07-03 12:31 ` Daniel Vetter
2012-07-03 13:08 ` Mel Gorman
2012-07-03 13:08 ` Mel Gorman
2012-07-03 13:08 ` Mel Gorman
2012-07-03 13:28 ` Eugeni Dodonov
2012-07-03 13:28 ` Eugeni Dodonov
2012-07-04 0:47 ` Dave Chinner
2012-07-04 0:47 ` Dave Chinner
2012-07-04 0:47 ` Dave Chinner
2012-07-04 9:51 ` Mel Gorman
2012-07-04 9:51 ` Mel Gorman
2012-07-04 9:51 ` Mel Gorman
2012-07-03 13:04 ` Mel Gorman
2012-07-03 13:04 ` Mel Gorman
2012-07-03 13:04 ` Mel Gorman
2012-07-03 14:04 ` Daniel Vetter [this message]
2012-07-03 14:04 ` Daniel Vetter
2012-07-03 14:04 ` Daniel Vetter
2012-07-02 13:30 ` Mel Gorman
2012-07-02 13:30 ` Mel Gorman
2012-07-02 13:30 ` Mel Gorman
2012-07-04 15:52 ` [MMTests] Page reclaim performance on ext3 Mel Gorman
2012-07-04 15:52 ` Mel Gorman
2012-07-04 15:53 ` [MMTests] Page reclaim performance on ext4 Mel Gorman
2012-07-04 15:53 ` Mel Gorman
2012-07-04 15:53 ` [MMTests] Page reclaim performance on xfs Mel Gorman
2012-07-04 15:53 ` Mel Gorman
2012-07-05 14:56 ` [MMTests] Interactivity during IO on ext3 Mel Gorman
2012-07-05 14:56 ` Mel Gorman
2012-07-10 9:49 ` Jan Kara
2012-07-10 9:49 ` Jan Kara
2012-07-10 11:30 ` Mel Gorman
2012-07-10 11:30 ` Mel Gorman
2012-07-05 14:57 ` [MMTests] Interactivity during IO on ext4 Mel Gorman
2012-07-05 14:57 ` Mel Gorman
2012-07-23 21:12 ` [MMTests] Scheduler Mel Gorman
2012-07-23 21:12 ` Mel Gorman
2012-07-23 21:13 ` [MMTests] Sysbench read-only on ext3 Mel Gorman
2012-07-23 21:13 ` Mel Gorman
2012-07-24 2:29 ` Mike Galbraith
2012-07-24 2:29 ` Mike Galbraith
2012-07-24 8:19 ` Mel Gorman
2012-07-24 8:19 ` Mel Gorman
2012-07-24 8:32 ` Mike Galbraith
2012-07-24 8:32 ` Mike Galbraith
2012-07-23 21:14 ` [MMTests] Sysbench read-only on ext4 Mel Gorman
2012-07-23 21:14 ` Mel Gorman
2012-07-23 21:15 ` [MMTests] Sysbench read-only on xfs Mel Gorman
2012-07-23 21:15 ` Mel Gorman
2012-07-23 21:17 ` [MMTests] memcachetest and parallel IO on ext3 Mel Gorman
2012-07-23 21:17 ` Mel Gorman
2012-07-23 21:19 ` [MMTests] memcachetest and parallel IO on xfs Mel Gorman
2012-07-23 21:19 ` Mel Gorman
2012-07-23 21:20 ` [MMTests] Stress high-order allocations on ext3 Mel Gorman
2012-07-23 21:20 ` Mel Gorman
2012-07-23 21:21 ` [MMTests] dbench4 async " Mel Gorman
2012-07-23 21:21 ` Mel Gorman
2012-08-16 14:52 ` Jan Kara
2012-08-16 14:52 ` Jan Kara
2012-08-21 22:00 ` Jan Kara
2012-08-21 22:00 ` Jan Kara
2012-08-22 10:48 ` Mel Gorman
2012-08-22 10:48 ` Mel Gorman
2012-07-23 21:23 ` [MMTests] dbench4 async on ext4 Mel Gorman
2012-07-23 21:23 ` Mel Gorman
2012-07-23 21:24 ` [MMTests] Threaded IO Performance on ext3 Mel Gorman
2012-07-23 21:24 ` Mel Gorman
2012-07-23 21:25 ` [MMTests] Threaded IO Performance on xfs Mel Gorman
2012-07-23 21:25 ` Mel Gorman
2012-07-23 21:25 ` Mel Gorman
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