Re: [ kvm-Bugs-1824398 ] poor/weird performance in sandra (kvm50/acpi/windows)

[Anthony Liguori <anthony-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>]

SourceForge.net wrote:
> Bugs item #1824398, was opened at 2007-11-02 11:50
> Message generated for change (Tracker Item Submitted) made by Item Submitter
> You can respond by visiting: 
> https://sourceforge.net/tracker/?func=detail&atid=893831&aid=1824398&group_id=180599
>
> Please note that this message will contain a full copy of the comment thread,
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> Category: None
> Group: None
> Status: Open
> Resolution: None
> Priority: 5
> Private: No
> Submitted By: Wilson (wilsone)
> Assigned to: Nobody/Anonymous (nobody)
> Summary: poor/weird performance in sandra (kvm50/acpi/windows)
>
> Initial Comment:
> CPU Model: Intel Core 2 Duo Q6600
> KVM Version: KVM-50
> Host Kernel: Linux 2.6.23.1 
> Arch: X86_64
> Guest: 32bit Windows XP Sp2 ACPI HAL
> QEMU Command line: qemu-system-x86_64 -hda /common/stor2/wxp32acpi.qcow2 -m 512 -net nic,model=rtl8139,macaddr=50:17:99:55:4E:90 -net tap & 
> no-kvm: vm won't even boot with -no-kvm
>
> Issue: When doing the CPU benchmarks (arithmetic or multimedia), the system takes a very long time and gives a dodgy result. This doesn't happen with a non-acpi hal vm. 
>
> Sisoft Sandra can be downloaded here:
>
> http://www.sisoftware.co.uk/index.html?dir=dload&location=sware_dl_3264&langx=en&a=
>
>
> I'm assuming this should be very easy to replicate for anyone running kvm-50 or older with the tpr patch and an acpi hal windows.
>   

Are you using the TPR patch and if so, which one are you using?

Regards,

Anthony Liguori

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