From: Paolo Bonzini <pbonzini@redhat.com>
To: Nerijus Baliunas <nerijus@users.sourceforge.net>,
KVM list <kvm@vger.kernel.org>
Subject: Re: cpu frequency
Date: Tue, 23 Dec 2014 12:37:22 +0100 [thread overview]
Message-ID: <549953F2.1040901@redhat.com> (raw)
In-Reply-To: <loom.20141223T121325-637@post.gmane.org>
On 23/12/2014 12:19, Nerijus Baliunas wrote:
> Hello,
>
> A commercial application running on Windows (kvm guest) detects CPU as:
> CPU_0: CPU0, Intel64 Family 6 Model 42 Stepping 1, 64, 64, 2200,
> 078BFBFD000206A1, 10753, CPU 0
> After some time, without reboot, it detects as:
> CPU_0: CPU0, Intel64 Family 6 Model 42 Stepping 1, 64, 64, 2298,
> 078BFBFD000206A1, 10753, CPU 0
>
> Windows Server 2012 Control Panel -> System shows CPU as 2.3 GHZ, but after
> reboot it might show 2.2 or 1.97 GHz.
>
> The problem is, that commercial application stops working after it detects
> CPU frequency change (2200 -> 2298 in above case). Is it possible to patch
> qemu-kvm that it shows some constant frquency to the guest?
How are you running qemu-kvm? (Command line, or XML if you're using
libvirt, or similar).
Paolo
next prev parent reply other threads:[~2014-12-23 11:37 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-23 11:19 cpu frequency Nerijus Baliunas
2014-12-23 11:37 ` Paolo Bonzini [this message]
2014-12-23 11:57 ` Nerijus Baliunas
2014-12-23 14:40 ` Paolo Bonzini
2014-12-23 22:52 ` Nerijus Baliunas
2015-01-05 12:44 ` Nerijus Baliunas
2015-02-03 13:25 ` Nerijus Baliunas
2015-02-03 14:03 ` Paolo Bonzini
2015-02-03 14:07 ` Andrey Korolyov
2015-02-04 0:06 ` Nerijus Baliunas
2015-02-04 7:20 ` Andrey Korolyov
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