The patch titled
sched: remove lb_stopbalance counter
has been removed from the -mm tree. Its filename was
sched-remove-lb_stopbalance-counter.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: sched: remove lb_stopbalance counter
From: "Chen, Kenneth W" <kenneth.w.chen@xxxxxxxxx>
Remove scheduler stats lb_stopbalance counter. This counter can be
calculated by: lb_balanced - lb_nobusyg - lb_nobusyq. There is no need to
create gazillion counters while we can derive the value.
Signed-off-by: Ken Chen <kenneth.w.chen@xxxxxxxxx>
Signed-off-by: Suresh Siddha <suresh.b.siddha@xxxxxxxxx>
Acked-by: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/linux/sched.h | 1 -
kernel/sched.c | 11 ++++-------
2 files changed, 4 insertions(+), 8 deletions(-)
diff -puN include/linux/sched.h~sched-remove-lb_stopbalance-counter include/linux/sched.h
--- a/include/linux/sched.h~sched-remove-lb_stopbalance-counter
+++ a/include/linux/sched.h
@@ -707,7 +707,6 @@ struct sched_domain {
unsigned long lb_hot_gained[MAX_IDLE_TYPES];
unsigned long lb_nobusyg[MAX_IDLE_TYPES];
unsigned long lb_nobusyq[MAX_IDLE_TYPES];
- unsigned long lb_stopbalance[MAX_IDLE_TYPES];
/* Active load balancing */
unsigned long alb_cnt;
diff -puN kernel/sched.c~sched-remove-lb_stopbalance-counter kernel/sched.c
--- a/kernel/sched.c~sched-remove-lb_stopbalance-counter
+++ a/kernel/sched.c
@@ -428,7 +428,7 @@ static inline void task_rq_unlock(struct
* 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 13
+#define SCHEDSTAT_VERSION 14
static int show_schedstat(struct seq_file *seq, void *v)
{
@@ -466,7 +466,7 @@ static int show_schedstat(struct seq_fil
seq_printf(seq, "domain%d %s", dcnt++, mask_str);
for (itype = SCHED_IDLE; itype < MAX_IDLE_TYPES;
itype++) {
- seq_printf(seq, " %lu %lu %lu %lu %lu %lu %lu %lu %lu",
+ seq_printf(seq, " %lu %lu %lu %lu %lu %lu %lu %lu",
sd->lb_cnt[itype],
sd->lb_balanced[itype],
sd->lb_failed[itype],
@@ -474,8 +474,7 @@ static int show_schedstat(struct seq_fil
sd->lb_gained[itype],
sd->lb_hot_gained[itype],
sd->lb_nobusyq[itype],
- sd->lb_nobusyg[itype],
- sd->lb_stopbalance[itype]);
+ sd->lb_nobusyg[itype]);
}
seq_printf(seq, " %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu\n",
sd->alb_cnt, sd->alb_failed, sd->alb_pushed,
@@ -2596,10 +2595,8 @@ redo:
group = find_busiest_group(sd, this_cpu, &imbalance, idle, &sd_idle,
&cpus, balance);
- if (*balance == 0) {
- schedstat_inc(sd, lb_stopbalance[idle]);
+ if (*balance == 0)
goto out_balanced;
- }
if (!group) {
schedstat_inc(sd, lb_nobusyg[idle]);
_
Patches currently in -mm which might be from kenneth.w.chen@xxxxxxxxx are
origin.patch
optimize-o_direct-on-block-device-v3.patch
optimize-o_direct-on-block-device-v3-tweak.patch
mm-only-sched-add-a-few-scheduler-event-counters.patch
-
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