Re: [libvirt] TSC scaling interface to management

2012-09-28 Thread Marcelo Tosatti
On Tue, Sep 25, 2012 at 11:08:58AM +0100, Daniel P. Berrange wrote: > On Wed, Sep 12, 2012 at 12:39:39PM -0300, Marcelo Tosatti wrote: > > > > > > HW TSC scaling is a feature of AMD processors that allows a > > multiplier to be specified to the TSC frequency exposed to the guest. > > > > KVM als

Re: [libvirt] TSC scaling interface to management

2012-09-25 Thread Daniel P. Berrange
On Wed, Sep 12, 2012 at 12:39:39PM -0300, Marcelo Tosatti wrote: > > > HW TSC scaling is a feature of AMD processors that allows a > multiplier to be specified to the TSC frequency exposed to the guest. > > KVM also contains provision to trap TSC ("KVM: Infrastructure for > software and hardware

Re: [libvirt] TSC scaling interface to management

2012-09-23 Thread Dor Laor
On 09/23/2012 04:06 AM, Marcelo Tosatti wrote: On Fri, Sep 21, 2012 at 11:30:31PM +0300, Dor Laor wrote: On 09/21/2012 05:51 AM, Marcelo Tosatti wrote: On Fri, Sep 21, 2012 at 12:02:46AM +0300, Dor Laor wrote: On 09/12/2012 06:39 PM, Marcelo Tosatti wrote: HW TSC scaling is a feature of AMD

Re: [libvirt] TSC scaling interface to management

2012-09-22 Thread Marcelo Tosatti
On Fri, Sep 21, 2012 at 11:30:31PM +0300, Dor Laor wrote: > On 09/21/2012 05:51 AM, Marcelo Tosatti wrote: > >On Fri, Sep 21, 2012 at 12:02:46AM +0300, Dor Laor wrote: > >>On 09/12/2012 06:39 PM, Marcelo Tosatti wrote: > >>> > >>> > >>>HW TSC scaling is a feature of AMD processors that allows a > >

Re: [libvirt] TSC scaling interface to management

2012-09-21 Thread Dor Laor
On 09/21/2012 05:51 AM, Marcelo Tosatti wrote: On Fri, Sep 21, 2012 at 12:02:46AM +0300, Dor Laor wrote: On 09/12/2012 06:39 PM, Marcelo Tosatti wrote: HW TSC scaling is a feature of AMD processors that allows a multiplier to be specified to the TSC frequency exposed to the guest. KVM also c

Re: [libvirt] TSC scaling interface to management

2012-09-20 Thread Marcelo Tosatti
On Fri, Sep 21, 2012 at 12:02:46AM +0300, Dor Laor wrote: > On 09/12/2012 06:39 PM, Marcelo Tosatti wrote: > > > > > >HW TSC scaling is a feature of AMD processors that allows a > >multiplier to be specified to the TSC frequency exposed to the guest. > > > >KVM also contains provision to trap TSC (

Re: [libvirt] TSC scaling interface to management

2012-09-20 Thread Dor Laor
On 09/12/2012 06:39 PM, Marcelo Tosatti wrote: HW TSC scaling is a feature of AMD processors that allows a multiplier to be specified to the TSC frequency exposed to the guest. KVM also contains provision to trap TSC ("KVM: Infrastructure for software and hardware based TSC rate scaling" cc578