From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir.fraser@eu.citrix.com>
Subject: Re: cpufreq status information
Date: Mon, 08 Sep 2008 16:04:13 +0100
Message-ID: <C4EAFD7D.26E77%keir.fraser@eu.citrix.com>
References: <D470B4E54465E3469E2ABBC5AFAC390F024D9768@pdsmsx412.ccr.corp.intel.com>
Mime-Version: 1.0
Content-Type: text/plain;
	charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Return-path: <xen-devel-bounces@lists.xensource.com>
In-Reply-To: <D470B4E54465E3469E2ABBC5AFAC390F024D9768@pdsmsx412.ccr.corp.intel.com>
List-Unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xensource.com>
List-Help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-Subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
Sender: xen-devel-bounces@lists.xensource.com
Errors-To: xen-devel-bounces@lists.xensource.com
To: "Tian, Kevin" <kevin.tian@intel.com>, Jan Beulich <jbeulich@novell.com>
Cc: xen-devel@lists.xensource.com
List-Id: xen-devel@lists.xenproject.org

On 8/9/08 15:49, "Tian, Kevin" <kevin.tian@intel.com> wrote:

>> The advantage of the latter is that the frequency changes are
>> interleaved
>> with other stuff you care about, like what's being scheduled,
>> what's on run
>> queues etc. Since obviously frequency information all by
>> itself is not so
>> interesting.
>> 
> 
> Yes, we already have many examples within dom0 to retrieve xen
> specific information bypassing dom0. By the way, we have the plan
> to add xentrace events for all processor PM stuff, including freq
> change and also cpu idle states transition (like break causes, etc.)

It's good to know there are other users and developers of xentrace!

 -- Keir