From: Peter Zijlstra <peterz@infradead.org>
To: Wen Yang <wen.yang99@zte.com.cn>
Cc: mingo@redhat.com, linux-kernel@vger.kernel.org,
jiang.biao2@zte.com.cn, zhong.weidong@zte.com.cn
Subject: Re: [PATCH] sched/rt: Make update_curr_rt() more accurate
Date: Mon, 5 Feb 2018 11:31:28 +0100 [thread overview]
Message-ID: <20180205103128.GR2295@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20180205103038.GI2249@hirez.programming.kicks-ass.net>
On Mon, Feb 05, 2018 at 11:30:38AM +0100, Peter Zijlstra wrote:
> On Mon, Feb 05, 2018 at 11:18:41AM +0800, Wen Yang wrote:
> > rq->clock_task may be updated between the two calls of
> > rq_clock_task() in update_curr_rt(). Calling rq_clock_task() only
> > once makes it more accurate and efficient, taking update_curr() as
> > reference.
> >
> > Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
> > Reviewed-by: Jiang Biao <jiang.biao2@zte.com.cn>
>
> Thanks!
I just noticed update_curr_dl() has the exact same issue, could you also
do a patch for that?
next prev parent reply other threads:[~2018-02-05 10:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-05 3:18 Wen Yang
2018-02-05 10:30 ` Peter Zijlstra
2018-02-05 10:31 ` Peter Zijlstra [this message]
2018-02-05 10:57 ` Ingo Molnar
2018-02-06 11:55 ` [tip:sched/urgent] " tip-bot for Wen Yang
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