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Re: [Xen-devel] Improving hvm IO performance by using self IO emulator (YA io-emu?)


  • To: <tgingold@xxxxxxx>
  • From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
  • Date: Thu, 22 Feb 2007 10:23:42 +0000
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Thu, 22 Feb 2007 02:23:36 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcdWa4ZrxLeG9MJeEduYZAAX8io7RQ==
  • Thread-topic: [Xen-devel] Improving hvm IO performance by using self IO emulator (YA io-emu?)

On 22/2/07 09:33, "tgingold@xxxxxxx" <tgingold@xxxxxxx> wrote:

>> I don't know the specifics of ia64 VTi, but I'd expect that Xen will still
>> need to be aware of VTi?
> Sure.
>> I'd be surprised if the differences can be hidden
>> safely and efficiently.
> If we can get rid of the ioemu process the differences between hvm and PV will
> be small, won't they ?

>From the perspective of dom0, yes. From the perspective of Xen, maybe not so
much. :-)

 -- Keir



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