From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: AW: Clocksources and other mysteries Date: Mon, 12 Jan 2009 12:03:37 +0000 Message-ID: References: <19123775.121231760939601.JavaMail.root@uhura> Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <19123775.121231760939601.JavaMail.root@uhura> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Carsten Schiers , xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On 12/01/2009 11:48, "Carsten Schiers" wrote: > It's everytime when cpufreq_ondemand or cpufreq-set changes the frequency, > aprox. 3 messages per event. > Is that occasional? I tend to say: no. Please see an excerpt below. And if > it's not occasional, what > could I do? And by the way: I found no code that TSC will get adjusted, so I > think it will get worse > over the time... Yeah, those deltas are huge. Almost a second in some cases. Something up in the AMD cpufreq management code. -- Keir