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Re: [Xen-devel] [PATCHv11 4/4] gnttab: use per-VCPU maptrack free lists

To: David Vrabel <david.vrabel@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
From: David Vrabel <david.vrabel@xxxxxxxxxx>
Date: Wed, 3 Jun 2015 10:00:08 +0100
Cc: Tim Deegan <tim@xxxxxxx>, Malcolm Crossley <malcolm.crossley@xxxxxxxxxx>, Keir Fraser <keir@xxxxxxx>, Ian Campbell <ian.campbell@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>
Delivery-date: Wed, 03 Jun 2015 09:00:18 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On 02/06/15 17:26, David Vrabel wrote:
> Performance analysis of aggregate network throughput with many VMs
> shows that performance is signficantly limited by contention on the
> maptrack lock when obtaining/releasing maptrack handles from the free
> list.

Sometime during all this refactoring, I dropped the authorship of this
patch.  Please ensure this is

From: Malcolm Crossley <malcolm.crossley@xxxxxxxxxx>

Thanks.

David

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References:
- [Xen-devel] [PATCHv11 0/4] gnttab: Improve scaleability
  - From: David Vrabel
- [Xen-devel] [PATCHv11 4/4] gnttab: use per-VCPU maptrack free lists
  - From: David Vrabel

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