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From: Huang Rui <ray.huang@amd.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: Alexander Monakov <amonakov@ispras.ru>,
	"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"Deucher, Alexander" <Alexander.Deucher@amd.com>,
	Jason Bagavatsingham <jason.bagavatsingham@gmail.com>,
	"Pierre-Loup A . Griffais" <pgriffais@valvesoftware.com>,
	"Fontenot, Nathan" <Nathan.Fontenot@amd.com>,
	"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
	Borislav Petkov <bp@suse.de>, "x86@kernel.org" <x86@kernel.org>,
	"stable@vger.kernel.org" <stable@vger.kernel.org>
Subject: Re: [PATCH v4] x86, sched: Fix the AMD CPPC maximum perf on some specific generations
Date: Thu, 13 May 2021 18:45:55 +0800	[thread overview]
Message-ID: <20210513104555.GC1621127@hr-amd> (raw)
In-Reply-To: <YJ0BzPs0WPJ42qG1@gmail.com>

On Thu, May 13, 2021 at 06:39:08PM +0800, Ingo Molnar wrote:
> 
> * Ingo Molnar <mingo@kernel.org> wrote:
> 
> > No need to send v5, done!
> > 
> > I have a system that appears to be affected by this bug:
> > 
> >   kepler:~> lscpu | grep -i mhz
> >   CPU MHz:                         4000.000
> >   CPU max MHz:                     7140.6250
> >   CPU min MHz:                     2200.0000
> > 
> > So I should be able to confirm after a reboot.
> 
> 'CPU max Mhz' seems to be saner now:
> 
>   kepler:~> lscpu | grep -i mhz
> 
>   CPU MHz:                         2200.000
>   CPU max MHz:                     4917.9678
>   CPU min MHz:                     2200.0000
> 

Yes, happy to know this :-)

Thanks,
Ray

  reply	other threads:[~2021-05-13 10:46 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-25  7:34 [PATCH v4] x86, sched: Fix the AMD CPPC maximum perf on some specific generations Huang Rui
2021-04-28 17:08 ` Rafael J. Wysocki
2021-05-12 19:15 ` Ingo Molnar
2021-05-12 19:20 ` [tip: sched/urgent] x86, sched: Fix the AMD CPPC maximum performance value on certain AMD Ryzen generations tip-bot2 for Huang Rui
2021-05-12 22:34 ` [PATCH v4] x86, sched: Fix the AMD CPPC maximum perf on some specific generations Alexander Monakov
2021-05-12 22:59   ` Ingo Molnar
2021-05-13  4:24     ` Huang Rui
2021-05-13 10:12       ` Ingo Molnar
2021-05-13 10:27         ` Huang Rui
2021-05-13 10:39         ` Ingo Molnar
2021-05-13 10:45           ` Huang Rui [this message]
2021-05-13 10:43 ` [tip: sched/urgent] x86, sched: Fix the AMD CPPC maximum performance value on certain AMD Ryzen generations tip-bot2 for Huang Rui

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