linux-kernel - Re: [PATCH v7 2/2] sched/rt: Add support for SD_PREFER_SIBLING on find_lowest

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Message-ID: <20170818093130.58d9d04a@gandalf.local.home>
Date:   Fri, 18 Aug 2017 09:31:30 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Byungchul Park <byungchul.park@....com>
Cc:     peterz@...radead.org, mingo@...nel.org, joel.opensrc@...il.com,
        linux-kernel@...r.kernel.org, juri.lelli@...il.com,
        kernel-team@....com
Subject: Re: [PATCH v7 2/2] sched/rt: Add support for SD_PREFER_SIBLING on
 find_lowest_rq()

On Fri, 18 Aug 2017 15:05:13 +0900
Byungchul Park <byungchul.park@....com> wrote:

> It would be better to avoid pushing tasks to other cpu within
> a SD_PREFER_SIBLING domain, instead, get more chances to check other
> siblings.
> 
> Signed-off-by: Byungchul Park <byungchul.park@....com>

Reviewed-by: Steven Rostedt (VMware) <rostedt@...dmis.org>

Note, we really should consolidate the rt.c and deadline.c find lowest
rqs code, especially since they should be aware of each other (rt and
deadline tasks should take notice of other rt and deadline tasks, not
just their own kind).

-- Steve