Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763730AbXHEJkZ (ORCPT ); Sun, 5 Aug 2007 05:40:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752745AbXHEJkQ (ORCPT ); Sun, 5 Aug 2007 05:40:16 -0400 Received: from mailhub.lawrence.edu ([143.44.0.14]:59937 "EHLO lawrence.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751650AbXHEJkP (ORCPT ); Sun, 5 Aug 2007 05:40:15 -0400 Message-ID: <46B59AE2.4000404@gmail.com> Date: Sun, 05 Aug 2007 05:39:46 -0400 From: Dan Zwell User-Agent: Thunderbird 2.0.0.4 (X11/20070604) MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: Re: tuning CFS: /proc/sys/kernel/sched_granularity_ns question References: <46B58A69.20708@gmail.com> In-Reply-To: <46B58A69.20708@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 817 Lines: 19 Dan Zwell wrote: > Hi. I see "/proc/sys/kernel/sched_granularity_ns" mentioned on web sites > and such, but I do have this file and cannot create it. Yes, I am root > and /proc is mounted. Are there boot parameters that I must enable to > tune this variable? Do I need to specifically enable this in .config? > Sorry for the dumb question--I searched the source and found that CONFIG_SCHED_DEBUG must be defined, and after enabling kernel debugging, this was automatically turned on. I didn't realize that this type of tuning was considered debugging. Thanks, Dan - 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/