Joshua Pincus
2008-Oct-31 21:22 UTC
[Xen-users] Performance of WinXP after xen tools installed is terrible
Hi, The performance of Windows XP is dreadful. Absolutely dreadful. There are only two VMs on the machine, dom0 and domU. The system supports the Windows XP HVM domain through the good offices of the underlying dual-core AMD cpu with AMD-V technology. The system spends a huge amount of time running rundll32.exe. If I kill the executable, it speeds up a bit. The performance problem has been there since the beginning, and I''ve scanned for viruses. There are none to be found. I''ve allocated 2GIG for the domain and 2 VCPUs. Performance is so bad as to make the domain almost unusable for many tasks. Deleting files, for some reason, takes forever. Are there obvious things for which I can check or set? I''m using the latest Citrix distro and I''ve installed the xen-tools.iso tools. The drivers running in the domain are Hypervisor-aware. Thanks, JP -- Joshua Pincus Senior Programmer Metaforic, Inc. Web: http://www.metaforic.com Tel: 408-572-5600 Fax: 408-521-2425 _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
James Harper
2008-Nov-01 09:46 UTC
RE: [Xen-users] Performance of WinXP after xen tools installed isterrible
> Hi, > > The performance of Windows XP is dreadful. Absolutely dreadful. > There are only two VMs on the machine, dom0 and domU. The system > supports the Windows XP HVM domain through the good offices of > the underlying dual-core AMD cpu with AMD-V technology. > > The system spends a huge amount of time running rundll32.exe. > If I kill the executable, it speeds up a bit. The performance > problem has been there since the beginning, and I''ve scanned > for viruses. There are none to be found. > > I''ve allocated 2GIG for the domain and 2 VCPUs. Performance > is so bad as to make the domain almost unusable for many > tasks. Deleting files, for some reason, takes forever. > > Are there obvious things for which I can check or set? > I''m using the latest Citrix distro and I''ve installed the > xen-tools.iso tools. The drivers running in the domain are > Hypervisor-aware. >Have you tried a complete reinstall of the DomU from scratch with no extra drivers or anything? Is it XP sp2? Prior to sp2 I have seen some pretty poor performance of XP. What does ''xm dmesg'' say? What are your underlying disks in dom0? It would probably be useful to post your DomU config file to the list. James _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Itamar - IspBrasil
2008-Nov-01 11:56 UTC
Re: [Xen-users] Performance of WinXP after xen tools installed isterrible
try with only one VCPU On 11/1/2008 7:46 AM, James Harper wrote:>> Hi, >> >> The performance of Windows XP is dreadful. Absolutely dreadful. >> There are only two VMs on the machine, dom0 and domU. The system >> supports the Windows XP HVM domain through the good offices of >> the underlying dual-core AMD cpu with AMD-V technology. >> >> The system spends a huge amount of time running rundll32.exe. >> If I kill the executable, it speeds up a bit. The performance >> problem has been there since the beginning, and I''ve scanned >> for viruses. There are none to be found. >> >> I''ve allocated 2GIG for the domain and 2 VCPUs. Performance >> is so bad as to make the domain almost unusable for many >> tasks. Deleting files, for some reason, takes forever. >> >> Are there obvious things for which I can check or set? >> I''m using the latest Citrix distro and I''ve installed the >> xen-tools.iso tools. The drivers running in the domain are >> Hypervisor-aware. >> >> > > Have you tried a complete reinstall of the DomU from scratch with no > extra drivers or anything? > > Is it XP sp2? Prior to sp2 I have seen some pretty poor performance of > XP. > > What does ''xm dmesg'' say? > > What are your underlying disks in dom0? > > It would probably be useful to post your DomU config file to the list. > > James > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Dustin Henning
2008-Nov-03 13:45 UTC
RE: [Xen-users] Performance of WinXP after xen tools installed isterrible
Joshua, As you are using Citrix Xen, not Xen.org Xen, while the suggested changes may help, it is probably going to be necessary to get support from Citrix on your issue. -----Original Message----- From: xen-users-bounces@lists.xensource.com [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Itamar - IspBrasil Sent: Saturday, November 01, 2008 07:57 To: James Harper Cc: xen-users@lists.xensource.com; Joshua Pincus Subject: Re: [Xen-users] Performance of WinXP after xen tools installed isterrible try with only one VCPU On 11/1/2008 7:46 AM, James Harper wrote:>> Hi, >> >> The performance of Windows XP is dreadful. Absolutely dreadful. >> There are only two VMs on the machine, dom0 and domU. The system >> supports the Windows XP HVM domain through the good offices of >> the underlying dual-core AMD cpu with AMD-V technology. >> >> The system spends a huge amount of time running rundll32.exe. >> If I kill the executable, it speeds up a bit. The performance >> problem has been there since the beginning, and I''ve scanned >> for viruses. There are none to be found. >> >> I''ve allocated 2GIG for the domain and 2 VCPUs. Performance >> is so bad as to make the domain almost unusable for many >> tasks. Deleting files, for some reason, takes forever. >> >> Are there obvious things for which I can check or set? >> I''m using the latest Citrix distro and I''ve installed the >> xen-tools.iso tools. The drivers running in the domain are >> Hypervisor-aware. >> >> > > Have you tried a complete reinstall of the DomU from scratch with no > extra drivers or anything? > > Is it XP sp2? Prior to sp2 I have seen some pretty poor performance of > XP. > > What does ''xm dmesg'' say? > > What are your underlying disks in dom0? > > It would probably be useful to post your DomU config file to the list. > > James > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users