Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752581AbWLSFmp (ORCPT ); Tue, 19 Dec 2006 00:42:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752588AbWLSFmp (ORCPT ); Tue, 19 Dec 2006 00:42:45 -0500 Received: from omx2-ext.sgi.com ([192.48.171.19]:42353 "EHLO omx2.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752581AbWLSFmo (ORCPT ); Tue, 19 Dec 2006 00:42:44 -0500 Date: Mon, 18 Dec 2006 21:41:59 -0800 From: Paul Jackson To: Matt Helsley Cc: yanmin_zhang@linux.intel.com, akpm@osdl.org, linux-kernel@vger.kernel.org, jes@sgi.com, hch@lst.de, viro@zeniv.linux.org.uk, sgrubb@redhat.com, linux-audit@redhat.com, pj@sgi.com, systemtap@sources.redhat.com Subject: Re: Task watchers v2 Message-Id: <20061218214159.2d571bf5.pj@sgi.com> In-Reply-To: <1166447901.995.110.camel@localhost.localdomain> References: <20061215000754.764718000@us.ibm.com> <20061215000817.771088000@us.ibm.com> <1166420641.15989.117.camel@ymzhang> <1166447901.995.110.camel@localhost.localdomain> Organization: SGI X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.3; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 581 Lines: 17 Matt wrote: > - Task watchers can actually improve kernel performance slightly (up to > 2% in extremely fork-heavy workloads for instance). Nice. Could you explain why? -- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson 1.925.600.0401 - 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/