From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753309Ab1AQKw6 (ORCPT ); Mon, 17 Jan 2011 05:52:58 -0500 Received: from e23smtp01.au.ibm.com ([202.81.31.143]:37121 "EHLO e23smtp01.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750900Ab1AQKwy (ORCPT ); Mon, 17 Jan 2011 05:52:54 -0500 Message-ID: <4D341F81.1040602@linux.vnet.ibm.com> Date: Mon, 17 Jan 2011 16:22:49 +0530 From: Ciju Rajan K User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.13) Gecko/20101209 Fedora/3.1.7-0.35.b3pre.fc14 Thunderbird/3.1.7 MIME-Version: 1.0 To: lkml CC: Ciju Rajan K , Peter Zijlstra , Ingo Molnar , Bharata B Rao , Srivatsa Vaddagiri Subject: [PATCH 1/2 v1.0]sched: Removing unused fields from /proc/schedstat References: <4D341ECD.3020503@linux.vnet.ibm.com> In-Reply-To: <4D341ECD.3020503@linux.vnet.ibm.com> Content-Type: multipart/mixed; boundary="------------080409010401080602060704" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a multi-part message in MIME format. --------------080409010401080602060704 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit This patch removes the unused statistics from /proc/schedstat. Also updates the request queue structure fields. --------------080409010401080602060704 Content-Type: text/plain; name="patch1_v1.patch" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="patch1_v1.patch" Signed-off-by: Ciju Rajan K --- diff -Naurp a/include/linux/sched.h b/include/linux/sched.h --- a/include/linux/sched.h 2011-01-17 00:49:08.000000000 +0530 +++ b/include/linux/sched.h 2011-01-17 01:01:27.000000000 +0530 @@ -943,20 +943,9 @@ struct sched_domain { unsigned int alb_failed; unsigned int alb_pushed; - /* SD_BALANCE_EXEC stats */ - unsigned int sbe_count; - unsigned int sbe_balanced; - unsigned int sbe_pushed; - - /* SD_BALANCE_FORK stats */ - unsigned int sbf_count; - unsigned int sbf_balanced; - unsigned int sbf_pushed; - /* try_to_wake_up() stats */ unsigned int ttwu_wake_remote; unsigned int ttwu_move_affine; - unsigned int ttwu_move_balance; #endif #ifdef CONFIG_SCHED_DEBUG char *name; diff -Naurp a/kernel/sched.c b/kernel/sched.c --- a/kernel/sched.c 2011-01-17 00:32:14.000000000 +0530 +++ b/kernel/sched.c 2011-01-17 00:38:24.000000000 +0530 @@ -545,7 +545,6 @@ struct rq { unsigned int yld_count; /* schedule() stats */ - unsigned int sched_switch; unsigned int sched_count; unsigned int sched_goidle; diff -Naurp a/kernel/sched_debug.c b/kernel/sched_debug.c --- a/kernel/sched_debug.c 2011-01-17 00:31:36.000000000 +0530 +++ b/kernel/sched_debug.c 2011-01-17 00:36:52.000000000 +0530 @@ -286,7 +286,6 @@ static void print_cpu(struct seq_file *m P(yld_count); - P(sched_switch); P(sched_count); P(sched_goidle); #ifdef CONFIG_SMP diff -Naurp a/kernel/sched_stats.h b/kernel/sched_stats.h --- a/kernel/sched_stats.h 2011-01-17 00:31:56.000000000 +0530 +++ b/kernel/sched_stats.h 2011-01-17 11:49:50.000000000 +0530 @@ -4,7 +4,7 @@ * bump this up when changing the output format or the meaning of an existing * format, so that tools can adapt (or abort) */ -#define SCHEDSTAT_VERSION 15 +#define SCHEDSTAT_VERSION 16 static int show_schedstat(struct seq_file *seq, void *v) { @@ -26,9 +26,9 @@ static int show_schedstat(struct seq_fil /* runqueue-specific stats */ seq_printf(seq, - "cpu%d %u %u %u %u %u %u %llu %llu %lu", + "cpu%d %u %u %u %u %u %llu %llu %lu", cpu, rq->yld_count, - rq->sched_switch, rq->sched_count, rq->sched_goidle, + rq->sched_count, rq->sched_goidle, rq->ttwu_count, rq->ttwu_local, rq->rq_cpu_time, rq->rq_sched_info.run_delay, rq->rq_sched_info.pcount); @@ -57,12 +57,9 @@ static int show_schedstat(struct seq_fil sd->lb_nobusyg[itype]); } seq_printf(seq, - " %u %u %u %u %u %u %u %u %u %u %u %u\n", + " %u %u %u %u %u\n", sd->alb_count, sd->alb_failed, sd->alb_pushed, - sd->sbe_count, sd->sbe_balanced, sd->sbe_pushed, - sd->sbf_count, sd->sbf_balanced, sd->sbf_pushed, - sd->ttwu_wake_remote, sd->ttwu_move_affine, - sd->ttwu_move_balance); + sd->ttwu_wake_remote, sd->ttwu_move_affine); } preempt_enable(); #endif --------------080409010401080602060704--