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From:   Yafang Shao <laoar.shao@gmail.com>
Date:   Tue, 31 Aug 2021 21:27:59 +0800
Message-ID: <CALOAHbAG4v+ZnTohLDP6EFp50N0i=i-KTRvwhVhgmA8bZZX11Q@mail.gmail.com>
Subject: Re: [PATCH v3 4/7] sched: make the output of schedstats independent
 of fair sched class
To:     Peter Zijlstra <peterz@infradead.org>
Cc:     Ingo Molnar <mingo@redhat.com>, Mel Gorman <mgorman@suse.de>,
        Juri Lelli <juri.lelli@redhat.com>,
        Vincent Guittot <vincent.guittot@linaro.org>,
        Dietmar Eggemann <dietmar.eggemann@arm.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Benjamin Segall <bsegall@google.com>,
        Daniel Bristot de Oliveira <bristot@redhat.com>,
        Alison Chaiken <achaiken@aurora.tech>,
        kbuild test robot <lkp@intel.com>,
        LKML <linux-kernel@vger.kernel.org>,
        linux-rt-users <linux-rt-users@vger.kernel.org>
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On Tue, Aug 31, 2021 at 7:09 PM Peter Zijlstra <peterz@infradead.org> wrote:
>
> On Tue, Aug 24, 2021 at 11:29:43AM +0000, Yafang Shao wrote:
> > The per cpu stats can be show with /proc/sched_debug, which includes the
> > per cpu schedstats of each task group. Currently these per cpu
> > schedstats only show for the fair sched class. If we want to support
> > other sched classes, we have to make these output independent of fair
> > sched class.
>
> Arguably the whole rt group stuff needs to die, please don't enable it
> further.

Sure.

-- 
Thanks
Yafang