Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266235AbUA3HZg (ORCPT ); Fri, 30 Jan 2004 02:25:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266316AbUA3HZe (ORCPT ); Fri, 30 Jan 2004 02:25:34 -0500 Received: from webhosting.rdsbv.ro ([213.157.185.164]:48871 "EHLO hosting.rdsbv.ro") by vger.kernel.org with ESMTP id S266235AbUA3HZ3 (ORCPT ); Fri, 30 Jan 2004 02:25:29 -0500 Date: Fri, 30 Jan 2004 09:25:10 +0200 (EET) From: Catalin BOIE X-X-Sender: util@hosting.rdsbv.ro To: "Robert M. Hyatt" cc: Nick Piggin , linux-kernel@vger.kernel.org, linux-smp@vger.kernel.org Subject: Re: 2.6.2-rc2 Interactivity problems with SMP + HT In-Reply-To: Message-ID: References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2150 Lines: 70 On Thu, 29 Jan 2004, Robert M. Hyatt wrote: > > > It might be some IDE disk I/O that results from flushing buffers or > whatever. I don't see this on my SCSI boxes, but I have seen an IDE > box get sluggish at times due to I/O. It is possible. vmstat shows a lot of writes when this happen. Seems that even reads hangs. I remember tat I was in pine and I tried to save a small file (under 1k) and it took 5-7 seconds to do it. > > On Thu, 29 Jan 2004, Nick Piggin > wrote: > > > > > > > Catalin BOIE wrote: > > > > >Hello! > > > > > >First, thank you very much for the effort you put for Linux! > > > > > >I have a Intel motherboard with SATA (2 Maxtor disks). > > >CPUs: 2 x 2.4GHz PIV HT = 4 processors (2 virtual) > > >1 GB RAM. > > > > > >Load: postgresql and apache. Very low load (3-4 clients). > > > > > >RAID: Yes, soft RAID1 between the 2 disks. > > > > > >I have times when the console freeze for 3-4 seconds! > > >2.6.0-test11 had the same problem (maybe longer times). > > >2.6.1-rc2 worked good in this respect but crashed after 2 days. :( > > >2.6.2-rc2 is back with the delay. > > > > > >Do you know why this can happen? > > > > > > > > > > There haven't been many scheduler changes there recently so > > maybe its something else. > > > > But you could try the latest -mm kernels. They have some > > Hyperthreading work in them (you need to enable CONFIG_SCHED_SMT). > > > > - > > To unsubscribe from this list: send the line "unsubscribe linux-smp" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > -- > Robert M. Hyatt, Ph.D. Computer and Information Sciences > hyatt@uab.edu University of Alabama at Birmingham > (205) 934-2213 136A Campbell Hall > (205) 934-5473 FAX Birmingham, AL 35294-1170 > --- Catalin(ux) BOIE catab@deuroconsult.ro - 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/