linux-kernel - Re: [PATCH v3 3/3] sched/rt: Add support for SD_PREFER_SIBLING on find_lowest

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Message-ID: <20170323103651.GQ11100@X58A-UD3R>
Date:   Thu, 23 Mar 2017 19:36:51 +0900
From:   Byungchul Park <byungchul.park@....com>
To:     Peter Zijlstra <peterz@...radead.org>
CC:     <mingo@...nel.org>, <linux-kernel@...r.kernel.org>,
        <juri.lelli@...il.com>, <rostedt@...dmis.org>,
        <kernel-team@....com>
Subject: Re: [PATCH v3 3/3] sched/rt: Add support for SD_PREFER_SIBLING on
 find_lowest_rq()

On Thu, Mar 23, 2017 at 10:44:45AM +0100, Peter Zijlstra wrote:
> On Thu, Mar 23, 2017 at 11:12:49AM +0900, Byungchul Park 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.
> 
> Did you forget to post the rt equivalent to patch 1?

No. Fortunately, rt currently works as patch 1 does.