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, arjan@linux.intel.com, bp@alien8.de,
	pjt@google.com, namhyung@kernel.org, efault@gmx.de
Cc: vincent.guittot@linaro.org, gregkh@linuxfoundation.org,
	preeti@linux.vnet.ibm.com, viresh.kumar@linaro.org,
	linux-kernel@vger.kernel.org, alex.shi@intel.com
Subject: [RFC patch v2] sched: use runnable load avg in cfs balance instead of instant load
Date: Sat, 26 Jan 2013 09:49:17 +0800	[thread overview]
Message-ID: <1359164964-29052-1-git-send-email-alex.shi@intel.com> (raw)

This patchset can be used, but causes burst waking benchmark aim9 drop 5~7%
on my 2 sockets machine. The reason is too light runnable load in early stage
of waked tasks causes imbalance in balancing.

So, it is immature and just a reference for guys who want to go gurther.

V2 change:
1, attached the 1~3 patches, which were sent in power awareness scheduling
2, remove CONFIG_FAIR_GROUP_SCHED mask in patch 5th.

Thanks Ingo's comments and testing provided by Fengguang's kbuild system.
Now it is indepent patchset bases on Linus' tree.

Thanks 
Alex

[RFC patch v2 1/7] sched: give initial value for runnable avg of
[RFC patch v2 2/7] sched: set initial load avg of new forked task
[RFC patch v2 3/7] Revert "sched: Introduce temporary
[RFC patch v2 4/7] sched: update cpu load after task_tick.
[RFC patch v2 5/7] sched: compute runnable load avg in cpu_load and
[RFC patch v2 6/7] sched: consider runnable load average in
[RFC patch v2 7/7] sched: consider runnable load average in

             reply	other threads:[~2013-01-26  1:49 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-26  1:49 Alex Shi [this message]
2013-01-26  1:49 ` [RFC patch v2 1/7] sched: give initial value for runnable avg of sched entities Alex Shi
2013-01-26  1:49 ` [RFC patch v2 2/7] sched: set initial load avg of new forked task Alex Shi
2013-01-26  1:49 ` [RFC patch v2 3/7] Revert "sched: Introduce temporary FAIR_GROUP_SCHED dependency for load-tracking" Alex Shi
2013-01-26  1:49 ` [RFC patch v2 4/7] sched: update cpu load after task_tick Alex Shi
2013-01-26  1:49 ` [RFC patch v2 5/7] sched: compute runnable load avg in cpu_load and cpu_avg_load_per_task Alex Shi
2013-01-26  1:49 ` [RFC patch v2 6/7] sched: consider runnable load average in move_tasks Alex Shi
2013-01-26  1:49 ` [RFC patch v2 7/7] sched: consider runnable load average in effective_load 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=1359164964-29052-1-git-send-email-alex.shi@intel.com \
    --to=alex.shi@intel.com \
    --cc=akpm@linux-foundation.org \
    --cc=arjan@linux.intel.com \
    --cc=bp@alien8.de \
    --cc=efault@gmx.de \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@redhat.com \
    --cc=namhyung@kernel.org \
    --cc=peterz@infradead.org \
    --cc=pjt@google.com \
    --cc=preeti@linux.vnet.ibm.com \
    --cc=tglx@linutronix.de \
    --cc=vincent.guittot@linaro.org \
    --cc=viresh.kumar@linaro.org \
    /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®