From owner-freebsd-questions@FreeBSD.ORG Wed Sep 2 13:32:39 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 36DC6106566C for ; Wed, 2 Sep 2009 13:32:39 +0000 (UTC) (envelope-from peo@intersonic.se) Received: from neonpark.inter-sonic.com (neonpark.inter-sonic.com [212.247.8.98]) by mx1.freebsd.org (Postfix) with ESMTP id EC2DD8FC14 for ; Wed, 2 Sep 2009 13:32:38 +0000 (UTC) X-Virus-Scanned: amavisd-new at BSDLabs AB Message-ID: <4A9E73F2.2000908@intersonic.se> Date: Wed, 02 Sep 2009 15:32:34 +0200 From: Per olof Ljungmark User-Agent: Thunderbird 2.0.0.21 (X11/20090411) MIME-Version: 1.0 To: Bill Moran References: <4A9D8057.8020307@intersonic.se> <20090901162931.d85ec256.wmoran@potentialtech.com> <20090901204147.GC2855@dan.emsphone.com> <4A9DB590.6080605@intersonic.se> <20090902083348.40c21529.wmoran@potentialtech.com> In-Reply-To: <20090902083348.40c21529.wmoran@potentialtech.com> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org Subject: Re: memory usage displsy 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: Wed, 02 Sep 2009 13:32:39 -0000 Bill Moran wrote: > In response to Per olof Ljungmark : > >> Dan Nelson wrote: >>> In the last episode (Sep 01), Bill Moran said: >>>> In response to Per olof Ljungmark : >>>>> What is a good way to find out how memory is used? Have a 6.4 box where >>>>> memory is used by something but I fail to see what is using it - tried >>>>> different switches to ps(1), tried the stat tools but a big chunk of >>>>> memory does not show at all. >>>>> >>>>> A proper tool for analyzing memory usage "live", this is a production >>>>> box? >>>> I've always been able to get what I need from top. You can do -o res to >>>> sort by resident memory usage, which helps. >>> ps will sort by memory usage when given the -m flag. Also check ipcs -a to >>> see if there are any sysv shared memory segments hanging arnound. If you >>> don't see anything using the memory, where are you seeing that "something" >>> is using it? >>> >> ...and here is top output after I stopped Postfix, slapd and Cyrus-IMAP. >> Still over 3G Active. > > > > You did not sort by res and there are only 40 processes showing, which > means your output is truncated and may have truncated the problematic > process. > > Please use "top -o res" to get the output sorted by memory usage, or > don't truncate the output (former preferred). > > Also, please provide the output of "ipcs -a" > There was no more processes... ipcs -a Message Queues: T ID KEY MODE OWNER GROUP CREATOR CGROUP CBYTES QNUM QBYTES LSPID LRPID STIME RTIME CTIME Shared Memory: T ID KEY MODE OWNER GROUP CREATOR CGROUP NATTCH SEGSZ CPID LPID ATIME DTIME CTIME Semaphores: T ID KEY MODE OWNER GROUP CREATOR CGROUP NSEMS OTIME CTIME