From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27842 invoked by alias); 22 Apr 2009 17:57:25 -0000 Received: (qmail 27833 invoked by uid 22791); 22 Apr 2009 17:57:24 -0000 X-SWARE-Spam-Status: No, hits=-3.9 required=5.0 tests=AWL,BAYES_00,SPF_PASS X-Spam-Check-By: sourceware.org Received: from e7.ny.us.ibm.com (HELO e7.ny.us.ibm.com) (32.97.182.137) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 22 Apr 2009 17:57:19 +0000 Received: from d01relay04.pok.ibm.com (d01relay04.pok.ibm.com [9.56.227.236]) by e7.ny.us.ibm.com (8.13.1/8.13.1) with ESMTP id n3MHkueK001603 for ; Wed, 22 Apr 2009 13:46:56 -0400 Received: from d01av02.pok.ibm.com (d01av02.pok.ibm.com [9.56.224.216]) by d01relay04.pok.ibm.com (8.13.8/8.13.8/NCO v9.2) with ESMTP id n3MHvGG1155870 for ; Wed, 22 Apr 2009 13:57:16 -0400 Received: from d01av02.pok.ibm.com (loopback [127.0.0.1]) by d01av02.pok.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id n3MHtU50011721 for ; Wed, 22 Apr 2009 13:55:30 -0400 Received: from d25ml01.torolab.ibm.com (d25ml01.torolab.ibm.com [9.26.6.102]) by d01av02.pok.ibm.com (8.12.11.20060308/8.12.11) with ESMTP id n3MHtUTt011710 for ; Wed, 22 Apr 2009 13:55:30 -0400 In-Reply-To: <588223.49333.qm@web52003.mail.re2.yahoo.com> References: <592922.54823.qm@web52001.mail.re2.yahoo.com> <8ac60eac0904201639r19f7d539v2b301fcb24e82317@mail.gmail.com> <20090420234805.GA28850@caradoc.them.org> <8ac60eac0904201654h1775560se59718b127ccbfad@mail.gmail.com> <742711.93110.qm@web52008.mail.re2.yahoo.com> <200904211551.n3LFphaO009791@brahms.sibelius.xs4all.nl> <808758.98762.qm@web52004.mail.re2.yahoo.com> <83ljpthlq2.fsf@gnu.org> <702D3FCE-02F7-4C70-AC67-3C7C62CDEBD0@elis.ugent.be> <588223.49333.qm@web52003.mail.re2.yahoo.com> To: gdb@sourceware.org MIME-Version: 1.0 Subject: Re: GDB using a lot of CPU time and writing a lot to disk on startup X-KeepSent: ACA06328:7750268E-852575A0:005FD7CB; type=4; name=$KeepSent Message-ID: From: Toby Haynes Date: Wed, 22 Apr 2009 19:18:00 -0000 Content-Type: text/plain; charset="US-ASCII" X-IsSubscribed: yes Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org X-SW-Source: 2009-04/txt/msg00185.txt.bz2 Nick Savoiu wrote on 22/04/2009 01:21:24 PM: > There are some reads from time to time but the writes are a constant. > Is there a way to determine the process that actually does the writing? pidstat (part of the sysstat package) can report on which processes are producing disk I/O on Linux kernels 2.6.20 and later. For example, to monitor which processes are doing I/O over the next sixty seconds with reports every 10 seconds. pidstat -d -t 10 6 Cheers, Toby Haynes