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xen-devel
RE: [Xen-devel] poor domU VBD performance.
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To: |
"Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>, "Andrew Theurer" <habanero@xxxxxxxxxx> |
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Subject: |
RE: [Xen-devel] poor domU VBD performance. |
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From: |
"Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx> |
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Date: |
Thu, 31 Mar 2005 22:32:33 +0100 |
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Cc: |
Philip R Auld <pauld@xxxxxxxxxxx>, Kurt Garloff <garloff@xxxxxxx>, Xen development list <xen-devel@xxxxxxxxxxxxxxxxxxx>, Vincent Hanquez <tab@xxxxxxxxx>, Jens Axboe <axboe@xxxxxxx>, Christian Limpach <Christian.Limpach@xxxxxxxxxxxx> |
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Thu, 31 Mar 2005 21:32:46 +0000 |
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Thread-index: |
AcU2Nu0Omb6l+CA/TVW87NCfuMvrnAAAhPdA |
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Thread-topic: |
[Xen-devel] poor domU VBD performance. |
> Could you try again, but replace calls to
> blk_run_queue(plugged_queue) in blkback.c with:
> if ( plugged_queue->unplug_fn )
> plugged_queue->unplug_fn(plugged_queue);
>
> This looks like a better match with what various other
> drivers do (e.g.
> swraid).
This patch is required to make it work with LVM. 2.0-testing and
unstable will be updated shortly...
Ian
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