Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263481AbTH1DRy (ORCPT ); Wed, 27 Aug 2003 23:17:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263679AbTH1DRy (ORCPT ); Wed, 27 Aug 2003 23:17:54 -0400 Received: from bosvwl02.itlinfosys.com ([216.52.49.36]:56581 "HELO bosvwl02.infosys.com") by vger.kernel.org with SMTP id S263481AbTH1DRw (ORCPT ); Wed, 27 Aug 2003 23:17:52 -0400 Message-ID: <021901c36d13$b174bd90$edbccac6@itlpc5228> Reply-To: "Tariq Firoz" From: "Tariq Firoz" To: "Andrew Morton" , "Con Kolivas" Cc: , References: <200308272138.h7RLciK29987@webmail2.vsnl.net><200308272137.42632.kernel@kolivas.org> <20030827125310.15ebf8f9.akpm@osdl.org> Subject: Re: 2.6.0-test4-mm1 - kswap hogs cpu OO takes ages to start! Date: Thu, 28 Aug 2003 08:53:04 +0530 Organization: Infosys MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4807.1700 x-mimeole: Produced By Microsoft MimeOLE V5.50.4910.0300 X-OriginalArrivalTime: 28 Aug 2003 03:19:24.0368 (UTC) FILETIME=[2E372D00:01C36D13] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2382 Lines: 70 I faced a similar problem with 2.6.0-test4-mm2 while using unstable kde 3.1.9x(?) In fact I was not able to do anything and my system became unresponsive, with kswapd0 hogging 60% CPU. Later X got killed ... I did not face such a situation in any of the previous releases (I have been using 2.5 since 2.5.70 ) [ I have 256 MB RAM and 256 SWAP with P4 2.0 GHz] Tariq Firoz ----- Original Message ----- From: "Andrew Morton" To: "Con Kolivas" Cc: ; Sent: Thursday, August 28, 2003 1:23 AM Subject: Re: 2.6.0-test4-mm1 - kswap hogs cpu OO takes ages to start! > Con Kolivas wrote: > > > > On Thu, 28 Aug 2003 07:38, warudkar@vsnl.net wrote: > > > Trying out 2.6.0-test4-mm1. Inside KDE, I start OpenOffice.org, Rational > > > Rose and Konsole at a time. All of these take extremely long time to > > > startup. (approx > 5 minutes). Kswapd hogs the CPU all the time. X becomes > > > unusable till all of them startup, although I can telnet and run top. Same > > > thing run under 2.4.18 starts up in 3 minutes, X stays usable and kswapd > > > never take more than 2% CPU. > > > > Yes I can reproduce this with a memory heavy load as well on low memory > > (linking at the end of a big kernel compile is standard problem). > > It could be that recent changes to page reclaim which improve I/O > scheduling have exacerbated this. > > Does this make a difference? > > diff -puN mm/vmscan.c~a mm/vmscan.c > --- 25/mm/vmscan.c~a Wed Aug 27 12:51:36 2003 > +++ 25-akpm/mm/vmscan.c Wed Aug 27 12:51:48 2003 > @@ -360,8 +360,6 @@ shrink_list(struct list_head *page_list, > * See swapfile.c:page_queue_congested(). > */ > if (PageDirty(page)) { > - if (referenced) > - goto keep_locked; > if (!is_page_cache_freeable(page)) > goto keep_locked; > if (!mapping) > > _ > > - > 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/ > - 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/