From owner-freebsd-questions@FreeBSD.ORG Mon Jun 30 18:17:59 2008 Return-Path: Delivered-To: questions@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1EC63106566C for ; Mon, 30 Jun 2008 18:17:59 +0000 (UTC) (envelope-from michel@lpthe.jussieu.fr) Received: from shiva.jussieu.fr (shiva.jussieu.fr [134.157.0.129]) by mx1.freebsd.org (Postfix) with ESMTP id A50128FC12 for ; Mon, 30 Jun 2008 18:17:58 +0000 (UTC) (envelope-from michel@lpthe.jussieu.fr) Received: from parthe.lpthe.jussieu.fr (parthe.lpthe.jussieu.fr [134.157.10.1]) by shiva.jussieu.fr (8.14.3/jtpda-5.4) with ESMTP id m5UIHusH064627 ; Mon, 30 Jun 2008 20:17:57 +0200 (CEST) X-Ids: 165 Received: from niobe.lpthe.jussieu.fr (niobe.lpthe.jussieu.fr [134.157.10.41]) by parthe.lpthe.jussieu.fr (Postfix) with ESMTP id B2BEF237190; Mon, 30 Jun 2008 20:17:55 +0200 (CEST) Received: by niobe.lpthe.jussieu.fr (Postfix, from userid 2005) id A4D8230; Mon, 30 Jun 2008 20:17:55 +0200 (CEST) Date: Mon, 30 Jun 2008 20:17:55 +0200 From: Michel Talon To: Kris Kennaway , questions@FreeBSD.org Message-ID: <20080630181755.GA3327@lpthe.jussieu.fr> References: <20080630165205.GA3033@lpthe.jussieu.fr> <48691D7C.2090804@FreeBSD.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <48691D7C.2090804@FreeBSD.org> User-Agent: Mutt/1.4.2.2i X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0 (shiva.jussieu.fr [134.157.0.165]); Mon, 30 Jun 2008 20:17:57 +0200 (CEST) X-Virus-Scanned: ClamAV 0.93.1/7590/Mon Jun 30 19:49:43 2008 on shiva.jussieu.fr X-Virus-Status: Clean X-Miltered: at jchkmail2.jussieu.fr with ID 48690737.000 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-j-chkmail-Enveloppe: 48690737.000/134.157.10.1/parthe.lpthe.jussieu.fr/parthe.lpthe.jussieu.fr/ X-j-chkmail-Score: MSGID : 48690737.000 on jchkmail2.jussieu.fr : j-chkmail score : . : R=. U=. O=. B=0.095 -> S=0.095 X-j-chkmail-Status: Ham Cc: Subject: Re: Too Much Context Switching? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 30 Jun 2008 18:17:59 -0000 On Mon, Jun 30, 2008 at 07:53:00PM +0200, Kris Kennaway wrote: > Yep, it could be that -- what confuses me though is that it is claimed > that performance suddenly regressed. If so then this cannot be the > underlying cause. It may be that the load has augmented to the point that contention imposes a rapid regression on throughput. -- Michel TALON