From: Prarit Bhargava <prarit@redhat.com>
To: Len Brown <lenb@kernel.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Len Brown <len.brown@intel.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
Josh Triplett <josh@joshtriplett.org>,
Kristen Carlson Accardi <kristen@linux.intel.com>
Subject: Re: [PATCH] turbostat, servers do not support uncore power register
Date: Sun, 19 Jan 2014 08:21:20 -0500 [thread overview]
Message-ID: <52DBD150.3050205@redhat.com> (raw)
In-Reply-To: <CAJvTdK=LuvjOphrETVkZL8a17c+tQDpD9JvHaEEw=WJrqnShjg@mail.gmail.com>
On 01/18/2014 10:50 PM, Len Brown wrote:
> On Thu, Dec 19, 2013 at 7:27 PM, Prarit Bhargava <prarit@redhat.com> wrote:
>> From the Intel Software Developer's Manual section 14.7.4,
>>
>> "For server platforms, PP1 domain is not supported, but its PP0 domain
>> supports the MSR_PP0_PERF_STATUS interface."
>>
>> When I run 'turbostat ls' I see the following error:
>>
>> /dev/cpu/0/msr offset 0x641 read failed
>
> Let me know if you see this when running turbostat v3.6 or later.
> you can find that version in the linux-next tree.
>
Len, looks like v3.6 works -- I'll do some additional testing to confirm but
AFAICT it does work on the affected systems.
P.
> thanks,
> Len Brown, Intel Open Source Technology Center
prev parent reply other threads:[~2014-01-19 13:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-20 0:27 [PATCH] turbostat, servers do not support uncore power register Prarit Bhargava
2014-01-06 22:31 ` Rafael J. Wysocki
2014-01-19 3:50 ` Len Brown
2014-01-19 13:21 ` Prarit Bhargava [this message]
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