From: Peter Zijlstra <peterz@infradead.org>
To: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Ingo Molnar <mingo@kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
"rjw@rjwysocki.net" <rjw@rjwysocki.net>,
Juri Lelli <juri.lelli@arm.com>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Morten Rasmussen <Morten.Rasmussen@arm.com>,
viresh kumar <viresh.kumar@linaro.org>
Subject: Re: [RESEND PATCH v2 1/2] sched/rt: add utilization tracking
Date: Tue, 8 Aug 2017 16:01:26 +0200 [thread overview]
Message-ID: <20170808140126.u2i6ibdgt2q4mao2@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <CAKfTPtCzBCgOy8azd4jzPUn03Q3kDs+nk2dSnkrZvvugo5M62w@mail.gmail.com>
On Tue, Aug 08, 2017 at 03:56:26PM +0200, Vincent Guittot wrote:
>
> I don't think that IRQ tracking patch is working.
> update_irq_load_avg(rq->clock, cpu_of(rq), rq, 1); is called in
> update_rq_clock_task() which is never called in irq context. In order
> to use PELT for tracking irq and paravirt, we should call
> update_irq_load_avg() for every context switch between irq/paravirt
> and task which will probably be too heavy. Nevertheless, we can
>
Right, realized the same much later yesterday...
next prev parent reply other threads:[~2017-08-08 14:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-04 13:40 [RESEND PATCH v2 0/2] sched/rt: track rt rq utilization Vincent Guittot
2017-08-04 13:40 ` [RESEND PATCH v2 1/2] sched/rt: add utilization tracking Vincent Guittot
2017-08-07 16:44 ` Peter Zijlstra
2017-08-08 13:56 ` Vincent Guittot
2017-08-08 14:01 ` Peter Zijlstra [this message]
2017-08-04 13:40 ` [RESEND PATCH v2 2/2] cpufreq/schedutil: add rt " Vincent Guittot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170808140126.u2i6ibdgt2q4mao2@hirez.programming.kicks-ass.net \
--to=peterz@infradead.org \
--cc=Morten.Rasmussen@arm.com \
--cc=dietmar.eggemann@arm.com \
--cc=juri.lelli@arm.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=rjw@rjwysocki.net \
--cc=vincent.guittot@linaro.org \
--cc=viresh.kumar@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®