RE: [Xen-devel] [RFC] New shadow paging code

["Puthiyaparambil, Aravindh" <aravindh.puthiyaparambil@xxxxxxxxxx>]

Ooops!!! I realized why I could not bring up more than 8 domains. I was
using loopback devices for the winxp disks and max_loop was by default
set to 8. So once I upped the max_loop number I was able to bring up
more domains.

What I did was, I brought up 20 WinXP x86_32 domains without launching
their respective vncviewers. Once all the domains were up I launched 10
viewers and this caused qemu-dm of the 10 launched domains to hit 40-50%
CPU. All the viewers were sluggish and no real work could be done.

Aravindh

> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-
> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Puthiyaparambil, Aravindh
> Sent: Thursday, August 17, 2006 12:59 AM
> To: Tim Deegan; xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: RE: [Xen-devel] [RFC] New shadow paging code
> 
> I also found that if I don't bring up vncviewer, qemu-dm does not take
> up 50% CPU. But I still fail trying to bring up the 9th domain with
the
> following error:
> Error: Device 768 (vbd) could not be connected. Backend device not
> found.
> 
> Aravindh
> 
> > -----Original Message-----
> > From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-
> > bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Puthiyaparambil, Aravindh
> > Sent: Thursday, August 17, 2006 12:48 AM
> > To: Tim Deegan; xen-devel@xxxxxxxxxxxxxxxxxxx
> > Subject: RE: [Xen-devel] [RFC] New shadow paging code
> >
> > Tim,
> >
> > I tried the patch on a 4-way x86_64 ES7000 32GB RAM with an x86_64
> > hypervisor.
> >
> > I found that I am still unable to bring up domains with pae=1. I
have
> > attached the error that I am seeing (hvm_pae.txt)
> >
> > I then tried bringing up as many x86_32 WinXP domains as possible.
The
> > qemu-dm process associated with each domain takes up 50% CPU. So I
am
> > unable to bring up more than 8 (2 * NR_CPUS) domains.
> >
> > Let me know if you need any more info.
> > Cheers,
> > Aravindh
> >
> > > -----Original Message-----
> > > From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-
> > > bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Tim Deegan
> > > Sent: Wednesday, August 16, 2006 6:35 AM
> > > To: xen-devel@xxxxxxxxxxxxxxxxxxx
> > > Subject: Re: [Xen-devel] [RFC] New shadow paging code
> > >
> > > A new version of the shadow2 patch is now available at
> > > http://www.cl.cam.ac.uk/~tjd21/shadow2.patch
> > > (md5: 3a094d3eebf328db887f495c022bf651)
> > > This patch applies to version 0e32095a7b46 of -unstable.
> > >
> > > It should fix the issues that have been seen with memory
allocation
> > and
> > > with 64-bit HVM guests.  SMP HVM guests may still have some
> problems.
> > >
> > > Cheers,
> > >
> > > Tim.
> > >
> > > _______________________________________________
> > > Xen-devel mailing list
> > > Xen-devel@xxxxxxxxxxxxxxxxxxx
> > > http://lists.xensource.com/xen-devel
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel

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