mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Alex Shi <alex.shi@intel.com>
To: mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de,
	akpm@linux-foundation.org, bp@alien8.de, pjt@google.com,
	namhyung@kernel.org, efault@gmx.de, morten.rasmussen@arm.com
Cc: vincent.guittot@linaro.org, preeti@linux.vnet.ibm.com,
	viresh.kumar@linaro.org, linux-kernel@vger.kernel.org,
	alex.shi@intel.com, mgorman@suse.de, riel@redhat.com,
	wangyun@linux.vnet.ibm.com, Jason Low <jason.low2@hp.com>,
	Changlong Xie <changlongx.xie@intel.com>
Subject: [patch v7 7/8] sched: consider runnable load average in move_tasks
Date: Thu, 30 May 2013 15:02:03 +0800	[thread overview]
Message-ID: <1369897324-16646-8-git-send-email-alex.shi@intel.com> (raw)
In-Reply-To: <1369897324-16646-1-git-send-email-alex.shi@intel.com>

Except using runnable load average in background, move_tasks is also
the key functions in load balance. We need consider the runnable load
average in it in order to the apple to apple load comparison.

Signed-off-by: Alex Shi <alex.shi@intel.com>
---
 kernel/sched/fair.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index eadd2e7..bb2470a 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4178,11 +4178,11 @@ static int tg_load_down(struct task_group *tg, void *data)
 	long cpu = (long)data;
 
 	if (!tg->parent) {
-		load = cpu_rq(cpu)->load.weight;
+		load = cpu_rq(cpu)->avg.load_avg_contrib;
 	} else {
 		load = tg->parent->cfs_rq[cpu]->h_load;
-		load *= tg->se[cpu]->load.weight;
-		load /= tg->parent->cfs_rq[cpu]->load.weight + 1;
+		load *= tg->se[cpu]->avg.load_avg_contrib;
+		load /= tg->parent->cfs_rq[cpu]->runnable_load_avg + 1;
 	}
 
 	tg->cfs_rq[cpu]->h_load = load;
@@ -4210,8 +4210,8 @@ static unsigned long task_h_load(struct task_struct *p)
 	struct cfs_rq *cfs_rq = task_cfs_rq(p);
 	unsigned long load;
 
-	load = p->se.load.weight;
-	load = div_u64(load * cfs_rq->h_load, cfs_rq->load.weight + 1);
+	load = p->se.avg.load_avg_contrib;
+	load = div_u64(load * cfs_rq->h_load, cfs_rq->runnable_load_avg + 1);
 
 	return load;
 }
-- 
1.7.12


  parent reply	other threads:[~2013-05-30  7:04 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-30  7:01 [patch v7 0/8] sched: using runnable load avg in balance Alex Shi
2013-05-30  7:01 ` [patch v7 1/8] Revert "sched: Introduce temporary FAIR_GROUP_SCHED dependency for load-tracking" Alex Shi
2013-05-30  7:01 ` [patch v7 2/8] sched: move few runnable tg variables into CONFIG_SMP Alex Shi
2013-05-30  7:01 ` [patch v7 3/8] sched: set initial value of runnable avg for new forked task Alex Shi
2013-05-30  7:02 ` [patch v7 4/8] sched: fix slept time double counting in enqueue entity Alex Shi
2013-05-30  7:02 ` [patch v7 5/8] sched: update cpu load after task_tick Alex Shi
2013-05-30  7:02 ` [patch v7 6/8] sched: compute runnable load avg in cpu_load and cpu_avg_load_per_task Alex Shi
2013-05-30  7:02 ` Alex Shi [this message]
2013-05-31 10:19   ` [patch v7 7/8] sched: consider runnable load average in move_tasks Morten Rasmussen
2013-05-31 15:07     ` Alex Shi
2013-05-30  7:02 ` [patch v7 8/8] sched: remove blocked_load_avg in tg Alex Shi
2013-06-03  6:43 ` [patch v7 0/8] sched: using runnable load avg in balance Alex Shi

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1369897324-16646-8-git-send-email-alex.shi@intel.com \
    --to=alex.shi@intel.com \
    --cc=akpm@linux-foundation.org \
    --cc=bp@alien8.de \
    --cc=changlongx.xie@intel.com \
    --cc=efault@gmx.de \
    --cc=jason.low2@hp.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mgorman@suse.de \
    --cc=mingo@redhat.com \
    --cc=morten.rasmussen@arm.com \
    --cc=namhyung@kernel.org \
    --cc=peterz@infradead.org \
    --cc=pjt@google.com \
    --cc=preeti@linux.vnet.ibm.com \
    --cc=riel@redhat.com \
    --cc=tglx@linutronix.de \
    --cc=vincent.guittot@linaro.org \
    --cc=viresh.kumar@linaro.org \
    --cc=wangyun@linux.vnet.ibm.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®