On Wed, Jul 18, 2018 at 10:23:52AM +0200, Peter Zijlstra wrote:
> On Tue, Jul 17, 2018 at 10:13:23PM +0200, Andreas Herrmann wrote:
> > On Tue, Jul 17, 2018 at 06:14:58PM +0200, Rafael J. Wysocki wrote:
> > > From: Rafael J. Wysocki
> > >
> > > The firmware interface used by the pcc-cpufreq
On Wed, Jul 18, 2018 at 10:23:52AM +0200, Peter Zijlstra wrote:
> On Tue, Jul 17, 2018 at 10:13:23PM +0200, Andreas Herrmann wrote:
> > On Tue, Jul 17, 2018 at 06:14:58PM +0200, Rafael J. Wysocki wrote:
> > > From: Rafael J. Wysocki
> > >
> > > The firmware interface used by the pcc-cpufreq
On Tue, Jul 17, 2018 at 10:13:23PM +0200, Andreas Herrmann wrote:
> On Tue, Jul 17, 2018 at 06:14:58PM +0200, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki
> >
> > The firmware interface used by the pcc-cpufreq driver is
> > fundamentally not scalable and using it for dynamic CPU
On Tue, Jul 17, 2018 at 10:13:23PM +0200, Andreas Herrmann wrote:
> On Tue, Jul 17, 2018 at 06:14:58PM +0200, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki
> >
> > The firmware interface used by the pcc-cpufreq driver is
> > fundamentally not scalable and using it for dynamic CPU
On Tue, Jul 17, 2018 at 10:13 PM, Andreas Herrmann wrote:
> On Tue, Jul 17, 2018 at 06:14:58PM +0200, Rafael J. Wysocki wrote:
>> From: Rafael J. Wysocki
>>
>> The firmware interface used by the pcc-cpufreq driver is
>> fundamentally not scalable and using it for dynamic CPU performance
>>
On Tue, Jul 17, 2018 at 10:13 PM, Andreas Herrmann wrote:
> On Tue, Jul 17, 2018 at 06:14:58PM +0200, Rafael J. Wysocki wrote:
>> From: Rafael J. Wysocki
>>
>> The firmware interface used by the pcc-cpufreq driver is
>> fundamentally not scalable and using it for dynamic CPU performance
>>
On Tue, Jul 17, 2018 at 06:14:58PM +0200, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki
>
> The firmware interface used by the pcc-cpufreq driver is
> fundamentally not scalable and using it for dynamic CPU performance
> scaling on systems with many CPUs leads to degraded performance.
>
>
On Tue, Jul 17, 2018 at 06:14:58PM +0200, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki
>
> The firmware interface used by the pcc-cpufreq driver is
> fundamentally not scalable and using it for dynamic CPU performance
> scaling on systems with many CPUs leads to degraded performance.
>
>
From: Rafael J. Wysocki
The firmware interface used by the pcc-cpufreq driver is
fundamentally not scalable and using it for dynamic CPU performance
scaling on systems with many CPUs leads to degraded performance.
For this reason, disable dynamic CPU performance scaling on systems
with
From: Rafael J. Wysocki
The firmware interface used by the pcc-cpufreq driver is
fundamentally not scalable and using it for dynamic CPU performance
scaling on systems with many CPUs leads to degraded performance.
For this reason, disable dynamic CPU performance scaling on systems
with
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