From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932285AbVKWUNw (ORCPT ); Wed, 23 Nov 2005 15:13:52 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932288AbVKWUNw (ORCPT ); Wed, 23 Nov 2005 15:13:52 -0500 Received: from mail.metronet.co.uk ([213.162.97.75]:29143 "EHLO mail.metronet.co.uk") by vger.kernel.org with ESMTP id S932285AbVKWUNv (ORCPT ); Wed, 23 Nov 2005 15:13:51 -0500 Date: Wed, 23 Nov 2005 20:13:38 +0000 From: Alexander Clouter To: akpm@osdl.org, linux-kernel@vger.kernel.org Cc: blaisorblade@yahoo.it, davej@codemonkey.org.uk, davej@redhat.com Subject: [patch 1/1 FINAL] cpufreq_conservative/ondemand: invert meaning of 'ignore nice' Message-ID: <20051123201338.GA4257@inskipp.digriz.org.uk> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="MGYHOYXEY6WxJCY8" Content-Disposition: inline Organization: diGriz X-URL: http://www.digriz.org.uk/ User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --MGYHOYXEY6WxJCY8 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline The *real* and hopefully final release of this. Noticed a bug that actually inversed the behaviour of what it was ment to do; hence why this patch is bigger. Also fixed the compiling bug that made it obviously I slacked on the testing. :-/ This code I have tested and it behaves as expected. Ready for submission as given below. ---------------------- The use of the 'ignore_nice' sysfs file is confusing to anyone using it. This removes the sysfs file 'ignore_nice' and in its place creates a 'ignore_nice_load' entry that defaults to '0'; meaning nice'd processes _are_ counted towards the 'business' calculation. WARNING: this obvious breaks any userland tools that expected ignore_nice' to exist, to draw attention to this fact it was concluded on the mailing list that the entry should be removed altogether so the userland app breaks and so the author can build simple to detect workaround. Having said that it seems currently very few tools even make use of this functionality; all I could find was a Gentoo Wiki entry. Signed-off-by: Alexander Clouter --MGYHOYXEY6WxJCY8 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename="01_inverse_ignore_nice_flag.diff" diff -u linux-2.6.14.orig/drivers/cpufreq/cpufreq_conservative.c linux-2.6.14/drivers/cpufreq/cpufreq_conservative.c --- linux-2.6.14.orig/drivers/cpufreq/cpufreq_conservative.c 2005-10-28 01:02:08.000000000 +0100 +++ linux-2.6.14/drivers/cpufreq/cpufreq_conservative.c 2005-11-23 20:01:00.061526250 +0000 @@ -93,7 +93,7 @@ { return kstat_cpu(cpu).cpustat.idle + kstat_cpu(cpu).cpustat.iowait + - ( !dbs_tuners_ins.ignore_nice ? + ( dbs_tuners_ins.ignore_nice ? kstat_cpu(cpu).cpustat.nice : 0); } @@ -127,7 +127,7 @@ show_one(sampling_down_factor, sampling_down_factor); show_one(up_threshold, up_threshold); show_one(down_threshold, down_threshold); -show_one(ignore_nice, ignore_nice); +show_one(ignore_nice_load, ignore_nice); show_one(freq_step, freq_step); static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused, @@ -207,7 +207,7 @@ return count; } -static ssize_t store_ignore_nice(struct cpufreq_policy *policy, +static ssize_t store_ignore_nice_load(struct cpufreq_policy *policy, const char *buf, size_t count) { unsigned int input; @@ -272,7 +272,7 @@ define_one_rw(sampling_down_factor); define_one_rw(up_threshold); define_one_rw(down_threshold); -define_one_rw(ignore_nice); +define_one_rw(ignore_nice_load); define_one_rw(freq_step); static struct attribute * dbs_attributes[] = { @@ -282,7 +282,7 @@ &sampling_down_factor.attr, &up_threshold.attr, &down_threshold.attr, - &ignore_nice.attr, + &ignore_nice_load.attr, &freq_step.attr, NULL }; diff -u linux-2.6.14.orig/drivers/cpufreq/cpufreq_ondemand.c linux-2.6.14/drivers/cpufreq/cpufreq_ondemand.c --- linux-2.6.14.orig/drivers/cpufreq/cpufreq_ondemand.c 2005-10-28 01:02:08.000000000 +0100 +++ linux-2.6.14/drivers/cpufreq/cpufreq_ondemand.c 2005-11-23 20:01:08.230036750 +0000 @@ -86,7 +86,7 @@ { return kstat_cpu(cpu).cpustat.idle + kstat_cpu(cpu).cpustat.iowait + - ( !dbs_tuners_ins.ignore_nice ? + ( dbs_tuners_ins.ignore_nice ? kstat_cpu(cpu).cpustat.nice : 0); } @@ -119,7 +119,7 @@ show_one(sampling_rate, sampling_rate); show_one(sampling_down_factor, sampling_down_factor); show_one(up_threshold, up_threshold); -show_one(ignore_nice, ignore_nice); +show_one(ignore_nice_load, ignore_nice); static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused, const char *buf, size_t count) @@ -179,7 +179,7 @@ return count; } -static ssize_t store_ignore_nice(struct cpufreq_policy *policy, +static ssize_t store_ignore_nice_load(struct cpufreq_policy *policy, const char *buf, size_t count) { unsigned int input; @@ -220,7 +220,7 @@ define_one_rw(sampling_rate); define_one_rw(sampling_down_factor); define_one_rw(up_threshold); -define_one_rw(ignore_nice); +define_one_rw(ignore_nice_load); static struct attribute * dbs_attributes[] = { &sampling_rate_max.attr, @@ -228,7 +228,7 @@ &sampling_rate.attr, &sampling_down_factor.attr, &up_threshold.attr, - &ignore_nice.attr, + &ignore_nice_load.attr, NULL }; --MGYHOYXEY6WxJCY8--