Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758032AbYHZLQN (ORCPT ); Tue, 26 Aug 2008 07:16:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753043AbYHZLPw (ORCPT ); Tue, 26 Aug 2008 07:15:52 -0400 Received: from ug-out-1314.google.com ([66.249.92.170]:19509 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752660AbYHZLPw (ORCPT ); Tue, 26 Aug 2008 07:15:52 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=gko8lqT2s8jB8q7w9+/OcsQ/M7j2lNeIJAQEQ1Z5u9sLNlSqkMRJMgO/JUObG7fFqr zo0jTh6px5/WaIwRzHB1EKsTogQUCsx5zj84IJnvnHcEqHnZS8v83a3gv/c/cCCI3wDe gacLHB3uT2pff8OJxbOHQoR9wd/Ihflv3zWMA= Date: Tue, 26 Aug 2008 11:15:45 +0000 From: Jarek Poplawski To: Denys Fedoryshchenko Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: loaded router, excessive getnstimeofday in oprofile Message-ID: <20080826111545.GD2609@ff.dom.local> References: <20080826095126.GA2609@ff.dom.local> <200808261329.53741.denys@visp.net.lb> <20080826104717.GB2609@ff.dom.local> <200808261349.09820.denys@visp.net.lb> <20080826110746.GC2609@ff.dom.local> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080826110746.GC2609@ff.dom.local> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1039 Lines: 22 On Tue, Aug 26, 2008 at 11:07:46AM +0000, Jarek Poplawski wrote: > On Tue, Aug 26, 2008 at 01:49:09PM +0300, Denys Fedoryshchenko wrote: ... > > Maybe it can be optional, and enabled via kernel parameter and /sys , so it > > can be useful in case of crashes when TSC used and when timer is too slow. > > Because it is not so useful just to disable hrtimers completely, if you need > > them for some other task... > > Maybe it could be enough to use current parameters like: "highres=off" > according to Documentation/kernel-parameters.txt? Hmm.. it isn't actually answer to your question, sorry. As I said before I think we need to have more people interested in using such additional options, and btw. I understood from your message that disabling htb didn't solve the problem? Jarek P. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/