From: Steven Rostedt <rostedt@goodmis.org>
To: Hillf Danton <dhillf@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: [Question] sched: migrate RT task on throttled leaf RT runqueue?
Date: Thu, 14 Jul 2011 10:09:12 -0400 [thread overview]
Message-ID: <1310652552.27864.25.camel@gandalf.stny.rr.com> (raw)
In-Reply-To: <CAJd=RBCB-GZh9jtWMkuJHQ5wJRJkMyCONh5JGH=DMpfco5juYg@mail.gmail.com>
On Thu, 2011-07-14 at 21:43 +0800, Hillf Danton wrote:
> Hi Steven
>
> When a non-boosted RT task is enqueued, if it is attached to task group, as
> shown in the following diff format for clarity, and even if the RT runqueue
> owned by the task group is throttled, the rt_rq is loaded up as leaf and the
> task is added to pushable list if it is pushable.
>
> Since RT tasks on throttled rt_runqueue will not be picked to be the next task
> when scheduling, could they be migrated by pushing and pulling?
Note, run queues are not throttled, groups are. And tasks on a throttled
group should not be touched by the push/pull algorithm.
-- Steve
next prev parent reply other threads:[~2011-07-14 14:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-14 13:43 Hillf Danton
2011-07-14 14:09 ` Steven Rostedt [this message]
2011-07-14 14:58 ` Hillf Danton
2011-07-14 15:22 ` Steven Rostedt
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=1310652552.27864.25.camel@gandalf.stny.rr.com \
--to=rostedt@goodmis.org \
--cc=dhillf@gmail.com \
--cc=linux-kernel@vger.kernel.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®