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Re: [Xen-users] Xen VGA Passthrough - GTX 480 successfully quadrified to quadro 6000 (softmod) - more than 4GB of RAM for Win XP 64 Bits

  • To: <xen-users@xxxxxxxxxxxxx>
  • From: Gordan Bobic <gordan@xxxxxxxxxx>
  • Date: Mon, 23 Sep 2013 12:12:44 +0100
  • Delivery-date: Mon, 23 Sep 2013 11:13:28 +0000
  • List-id: Xen user discussion <xen-users.lists.xen.org>

On Sun, 22 Sep 2013 18:43:55 +0100 (BST), David TECHER <davidtecher@xxxxxxxx> wrote:
Finaly I decided to rebuild a domU WinXP 64 today from scratch.

So the card works as expected. Here is my summary

domU = WinXP 64: RAM is limited to 3GB but the domU works perfecty.
Setting RAM over 3GB the domU gets slower.

Can you elaborate on this? I am now running XP64 with > 5GB of RAM
(needed to apply my work-in-progres e820_host HVM patch) and
I haven't noticed any slowdown compared to before when running
with 2.5GB of RAM in domU. How did you test/observe the slowdown?


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