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Date: Tue, 18 Jan 2011 11:34:06 +0530
From: Ciju Rajan K <ciju@...ux.vnet.ibm.com>
To: Peter Zijlstra <a.p.zijlstra@...llo.nl>,
lkml <linux-kernel@...r.kernel.org>
CC: Ciju Rajan K <ciju@...ux.vnet.ibm.com>,
Ingo Molnar <mingo@...e.hu>,
Bharata B Rao <bharata@...ux.vnet.ibm.com>,
Srivatsa Vaddagiri <vatsa@...ibm.com>
Subject: [PATCH 1/2 v1.0]sched: Removing unused fields from /proc/schedstat
sched: Updating the fields of /proc/schedstat
This patch removes the unused statistics from /proc/schedstat.
Also updates the request queue structure fields.
Signed-off-by: Ciju Rajan K <ciju@...ux.vnet.ibm.com>
---
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
--
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