linux-kernel - Re: [PATCH 0/5] Multiqueue virtio-scsi

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Message-ID: <20120830071342.GA6221@stefanha-thinkpad.localdomain>
Date:	Thu, 30 Aug 2012 08:13:42 +0100
From:	Stefan Hajnoczi <stefanha@...il.com>
To:	Paolo Bonzini <pbonzini@...hat.com>
Cc:	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	kvm@...r.kernel.org, mst@...hat.com,
	virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH 0/5] Multiqueue virtio-scsi

On Tue, Aug 28, 2012 at 01:54:12PM +0200, Paolo Bonzini wrote:
> this series adds multiqueue support to the virtio-scsi driver, based
> on Jason Wang's work on virtio-net.  It uses a simple queue steering
> algorithm that expects one queue per CPU.  LUNs in the same target always
> use the same queue (so that commands are not reordered); queue switching
> occurs when the request being queued is the only one for the target.
> Also based on Jason's patches, the virtqueue affinity is set so that
> each CPU is associated to one virtqueue.

Reviewed-by: Stefan Hajnoczi <stefanha@...ux.vnet.ibm.com>
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