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Re: [Xen-users] Release 0.9.5 of GPL PV Drivers for Windows


  • To: James Harper <james.harper@xxxxxxxxxxxxxxxx>
  • From: Andrej Javoršek <andrejj@xxxxxxxxx>
  • Date: Sat, 7 Jun 2008 12:47:10 +0200
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Mon, 23 Jun 2008 04:05:46 -0700
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On 7.6.2008, at 6:32, James Harper wrote:

That was probably it.  2K8 comes with .net preinstalled, but 2k3
doesn't.
What about the performance issues?  Are those the kind of numbers I
should
be expecting?

Well... obviously the PV drivers should be running much better than the
HVM devices. I'm trying to fix the 'format' problem that was described
recently at the moment. I'll re-visit the performance issues shortly. I
suspect that on some systems, windows hands out lots of unaligned
buffers which will slow things down drastically. I'll try and put some
monitoring to catch when this occurs excessively and log something in
the event log. At least then I'll be able to get some feedback on if
these event log messages appear when performance is bad.

Can you tell me what systems you've measured performance on? Are they
all 'bad'?

If they are, is there a way to install the shutdown
monitor, but not install the disk drivers?

Just don't boot with /GPLPV. xenpci will still activate and shutdown
will still work, but you won't get the PV block or network drivers,
which is what you want in this case.

James

Reading this mail I found out that the main cause of problems on my OpenSolaris instalation is probably in xenpci, because after installing PV drivers that disables boot of Windows with
or without /gplpv option.
With /gplpv option I get BSOD (boot device inaccessible), after Widows logo (with dummy progress indicator) without /gplpv Windows just freezes on Windows logo (progress indicator stops running).

Andrej

BTW: It seems I'm unable to post to the list, but can't find reason why!


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