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Date:   Wed, 29 Apr 2020 16:40:57 +0100
From:   Qais Yousef <qais.yousef@arm.com>
To:     Pavan Kondeti <pkondeti@codeaurora.org>
Cc:     Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Juri Lelli <juri.lelli@redhat.com>,
        Vincent Guittot <vincent.guittot@linaro.org>,
        Dietmar Eggemann <dietmar.eggemann@arm.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
        Luis Chamberlain <mcgrof@kernel.org>,
        Kees Cook <keescook@chromium.org>,
        Iurii Zaikin <yzaikin@google.com>,
        Quentin Perret <qperret@google.com>,
        Valentin Schneider <valentin.schneider@arm.com>,
        Patrick Bellasi <patrick.bellasi@matbug.net>,
        linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v3 1/2] sched/uclamp: Add a new sysctl to control RT
 default boost value
Message-ID: <20200429154056.bznhs6wc2iyxzevy@e107158-lin>
References: <20200428164134.5588-1-qais.yousef@arm.com>
 <20200429113255.GA19464@codeaurora.org>
 <20200429123056.otyedhljlugyf5we@e107158-lin>
 <20200429152106.GB19464@codeaurora.org>
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On 04/29/20 20:51, Pavan Kondeti wrote:
> As we are copying the sysctl_sched_uclamp_util_min_rt_default value into
> p->uclamp_req[UCLAMP_MIN], user gets it when sched_getattr() is called though
> sched_setattr() was not called before. I guess that is expected behavior with
> your definition of this new tunable. Thanks for answering the question in
> detail.

Yes. That's the original design without this patch actually. Though before it
was always set to 1024.

Thanks for having a look!

--
Qais Yousef