Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751314AbWAZF0s (ORCPT ); Thu, 26 Jan 2006 00:26:48 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751320AbWAZF0s (ORCPT ); Thu, 26 Jan 2006 00:26:48 -0500 Received: from mail.kroah.org ([69.55.234.183]:46790 "EHLO perch.kroah.org") by vger.kernel.org with ESMTP id S1751314AbWAZF0r (ORCPT ); Thu, 26 Jan 2006 00:26:47 -0500 Date: Wed, 25 Jan 2006 21:24:19 -0800 From: Greg KH To: Stephane Eranian Cc: "Bryan O'Sullivan" , linux-kernel@vger.kernel.org Subject: Re: [PATCH 3/6] 2.6.16-rc1 perfmon2 patch for review Message-ID: <20060126052419.GB12538@kroah.com> References: <200601201520.k0KFKEm2023128@frankl.hpl.hp.com> <1137775645.28944.61.camel@serpentine.pathscale.com> <20060124150912.GB7130@frankl.hpl.hp.com> <1138219693.15295.13.camel@serpentine.pathscale.com> <20060125235204.GB21195@kroah.com> <20060126045510.GA10962@frankl.hpl.hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060126045510.GA10962@frankl.hpl.hp.com> User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2203 Lines: 64 On Wed, Jan 25, 2006 at 08:55:10PM -0800, Stephane Eranian wrote: > Greg, > > On Wed, Jan 25, 2006 at 03:52:04PM -0800, Greg KH wrote: > > On Wed, Jan 25, 2006 at 12:08:13PM -0800, Bryan O'Sullivan wrote: > > > On Tue, 2006-01-24 at 07:09 -0800, Stephane Eranian wrote: > > > > > > > Because I tried regrouping all the /proc AND related interface into a single > > > > C file. > > > > > > sysctls seem to be every bit as deprecated as /proc for what you are > > > tring to do. > > > > > > > Well, it is not clear to me what criteria is used for /sys vs /proc. > > > > > > My understanding is that only process-related stuff belongs in /proc > > > now. Other random cruft that has accumulated over the years is left > > > there for backwards compatibility, but /sys interfaces are the way > > > forward now. > > > > Yes, that is exactly right. > > > I don't have a problem moving the perfmon stuff to /sys, except for > /proc/perfmon which is already being used by a bunch of tools. Unless > we duplicate the information or use a simlink (if that's possible). symlink will not work, sorry. > Please indicate a location in the /sys tree where these would fit: > > /proc/perfmon > /proc/perfmon_map What are the contents of these files? > These are currently sysctl(): > > /proc/sys/kernel/perfmon/arg_size_max > /proc/sys/kernel/perfmon/debug > /proc/sys/kernel/perfmon/debug_ovfl > /proc/sys/kernel/perfmon/expert_mode > /proc/sys/kernel/perfmon/reset_stats > /proc/sys/kernel/perfmon/smpl_buf_size_max > /proc/sys/kernel/perfmon/sys_group > /proc/sys/kernel/perfmon/task_group > What are the contents of these different files? Remember that sysfs is one value per file, so sysctls translate usually very easily to sysfs files. You can always just use /sys/kernel/perfmon/ if you like, as I don't think you are bound to anything that would be in the /sys/devices tree (you don't export per-cpu statistics, right?) Hope this helps, greg k-h - 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/