From owner-freebsd-performance@FreeBSD.ORG Tue Sep 27 21:12:43 2005 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4C66516A41F for ; Tue, 27 Sep 2005 21:12:43 +0000 (GMT) (envelope-from martinkov@pobox.sk) Received: from smtp.dkm.cz (smtp.dkm.cz [62.24.64.34]) by mx1.FreeBSD.org (Postfix) with SMTP id BF87043D7F for ; Tue, 27 Sep 2005 21:12:36 +0000 (GMT) (envelope-from martinkov@pobox.sk) Received: (qmail 8569 invoked by uid 0); 27 Sep 2005 21:12:35 -0000 Received: from r5k115.chello.upc.cz (HELO ?86.49.10.115?) (86.49.10.115) by smtp.dkm.cz with SMTP; 27 Sep 2005 21:12:35 -0000 Message-ID: <4339B5C3.4050703@pobox.sk> Date: Tue, 27 Sep 2005 23:12:35 +0200 From: martinko User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.12) Gecko/20050925 X-Accept-Language: sk, cs, en-gb, en-us, en MIME-Version: 1.0 Newsgroups: gmane.os.freebsd.performance To: Thomas Hurst X-Priority: 4 (Low) References: <20050922214709.Q50836@zoraida.natserv.net> <84dead7205092219023228cdf5@mail.gmail.com> <20050923080435.J58927@zoraida.natserv.net> <20050923122011.GV33413@yahoo-inc.com> <4337A277.4060200@pobox.sk> <20050927014821.GA96389@voi.aagh.net> In-Reply-To: <20050927014821.GA96389@voi.aagh.net> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-performance@freebsd.org Subject: Re: Finding what's causing I/O X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Sep 2005 21:12:43 -0000 Thomas Hurst wrote: > * martinko (martinkov@pobox.sk) wrote: > > >>well, thanks for the switch. i couldn't find any >>description/explanation of/on the columns (VCSW,..) in top(1) man >>page, though. :( > > > VCSW = Voluntary Context Switch > IVCSW = Involuntary Context Switch > > A very nice article on the meaning of these is here: > > http://www.informit.com/articles/article.asp?p=366888&seqNum=3&rl=1 > many thanks!