Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755039AbYHYFwn (ORCPT ); Mon, 25 Aug 2008 01:52:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751220AbYHYFwf (ORCPT ); Mon, 25 Aug 2008 01:52:35 -0400 Received: from bombadil.infradead.org ([18.85.46.34]:34660 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750734AbYHYFwf (ORCPT ); Mon, 25 Aug 2008 01:52:35 -0400 Subject: Re: Quad core CPUs loaded at only 50% when running a CPU and mmap intensive multi-threaded task From: Peter Zijlstra To: =?ISO-8859-1?Q?T=F6r=F6k?= Edwin Cc: Ingo Molnar , rml@tech9.net, Linux Kernel , "Thomas Gleixner mingo@redhat.com" , "H. Peter Anvin" In-Reply-To: <48B1CC15.2040006@gmail.com> References: <48B1CC15.2040006@gmail.com> Content-Type: text/plain; charset=utf-8 Date: Mon, 25 Aug 2008 07:51:16 +0200 Message-Id: <1219643476.20732.1.camel@twins> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 601 Lines: 16 On Mon, 2008-08-25 at 00:01 +0300, Török Edwin wrote: > Hi Ingo, > > When I run clamd (www.clamav.net), I can only get to load my CPU 50% > (according to top), and disks at 30% (according to iostat -x 3), > regardless how many threads I set (I tried 4, 8, 16, 32). Can you share your .config, and prehaps tell what kernel version did work for you? -- 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/