From: Christoph Hellwig <hch@lst.de>
To: Kevin Wolf <kwolf@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 0/3] block: Handle multiple write requests at once
Date: Wed, 2 Sep 2009 19:26:06 +0200 [thread overview]
Message-ID: <20090902172606.GA28156@lst.de> (raw)
In-Reply-To: <4A9E9457.9090904@redhat.com>
On Wed, Sep 02, 2009 at 05:50:47PM +0200, Kevin Wolf wrote:
> It's a RHEL 5.3 installation, and the kernel doesn't seem to even
> provide this file. However, I think I read that this is an issue of
> relatively new kernels, so probably not?
Indeed.
> What could matter, though, is that the installer uses LVM for the
> standard layout which I'm using. Does this make a difference in that
> respect?
It should not matter. Then again it should not issue these I/O patterns
at all, but it does. Something is clearly wrong in those I/O patterns,
but given that the exist out there in the field it seems like we'll have
to deal with it. I'll look over the patch a bit more carefully to see
if there is any obviously better way to handle it.
prev parent reply other threads:[~2009-09-02 17:26 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-01 13:51 [Qemu-devel] [PATCH 0/3] block: Handle multiple write requests at once Kevin Wolf
2009-09-01 13:51 ` [Qemu-devel] [PATCH 1/3] Add bdrv_aio_multiwrite Kevin Wolf
2009-09-01 13:51 ` [Qemu-devel] [PATCH 2/3] virtio-blk: Use bdrv_aio_multiwrite Kevin Wolf
2009-09-01 13:51 ` [Qemu-devel] [PATCH 3/3] qcow2: Add bdrv_aio_multiwrite implementation Kevin Wolf
2009-09-01 15:52 ` [Qemu-devel] [PATCH 0/3] block: Handle multiple write requests at once Christoph Hellwig
2009-09-01 16:08 ` Anthony Liguori
2009-09-01 16:14 ` Christoph Hellwig
2009-09-01 17:00 ` Avi Kivity
2009-09-01 16:59 ` Avi Kivity
2009-09-02 7:27 ` Kevin Wolf
2009-09-02 15:43 ` Christoph Hellwig
2009-09-02 15:50 ` Kevin Wolf
2009-09-02 17:26 ` Christoph Hellwig [this message]
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