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Re: [Xen-users] HVM Cpu performance 3.2
| To: | xen-users@xxxxxxxxxxxxxxxxxxx |
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| Subject: | Re: [Xen-users] HVM Cpu performance 3.2 |
| From: | "Oliver Wilcock" <oliver@xxxxxxx> |
| Date: | Tue, 9 Dec 2008 08:23:38 -0500 (EST) |
| Delivery-date: | Tue, 09 Dec 2008 05:24:27 -0800 |
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> Date: Tue, 9 Dec 2008 12:15:13 -0000 > From: "Ian Tobin" <itobin@xxxxxxxxxxxxx> > Subject: [Xen-users] HVM Cpu performance 3.2 > Hi, > It seems after upgrading to this release the cpu consumption has > increased quite considerably. > The server is an AMD 2.6 Dual Core. > If you set the HVM config to use 1 vcpu instead of 2 the performance > increases a lot which is quite strange. > Anyone else had this problem? It was working fine on 3.0.4 > Thanks > Ian Do you mean that a Windows HVM consumes a lot of CPU according to xm top? If so you may have my problem - search for ACPI APIC and Windows HAL issues in relation to performance of Windows HVM. I haven't use Xen earlier than 3.2 (SLES10 sp2) so I can't comment on an increase or comparison to Xen 3.0.2. _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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