From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: [RFC] [PATCH] use "reliable" tsc properly when available, but verify Date: Tue, 29 Sep 2009 19:21:01 +0100 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Dan Magenheimer , "Xen-Devel (E-mail)" List-Id: xen-devel@lists.xenproject.org On 29/09/2009 19:10, "Dan Magenheimer" wrote: > I'd feel better running check_tsc_warp (at least) once > on ALL processors, even if X86_FEATURE_TSC_RELIABLE > is set. Is that OK? Or should we just trust it under > exactly the same circumstances as Linux does? Well, what does trusting it imply for us right now? Do you have another patch in mind, even if we decide against check_tsc_warp? I mean, I'm not unhappy with our TSC management code as it is. I'm not greatly excited to mess with it yet again. -- Keir