linux-kernel - Re: [ANNOUNCEMENT] CFP: Real-time and Scheduling MC at LPC

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Message-ID: <c53cb40d-86c2-0325-4103-af135fd0e680@kernel.org>
Date:   Fri, 25 Aug 2023 17:57:22 +0200
From:   Daniel Bristot de Oliveira <bristot@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Steven Rostedt <rostedt@...dmis.org>
Cc:     Abel Wu <wuyun.abel@...edance.com>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Barry Song <song.bao.hua@...ilicon.com>,
        Chengming Zhou <zhouchengming@...edance.com>,
        Christoph Hellwig <hch@....de>,
        "David S. Miller" <davem@...emloft.net>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Frederic Weisbecker <frederic@...nel.org>,
        Hao Jia <jiahao.os@...edance.com>,
        Huaixin Chang <changhuaixin@...ux.alibaba.com>,
        Huang Ying <ying.huang@...el.com>,
        "Joel Fernandes (Google)" <joel@...lfernandes.org>,
        Johannes Weiner <hannes@...xchg.org>,
        Josh Don <joshdon@...gle.com>,
        Konstantin Khlebnikov <khlebnikov@...dex-team.ru>,
        Lukasz Luba <lukasz.luba@....com>,
        Mark Rutland <mark.rutland@....com>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Nicholas Piggin <npiggin@...il.com>,
        Odin Ugedal <odin@...d.al>,
        Patrick Bellasi <patrick.bellasi@....com>,
        Peng Wang <rocking@...ux.alibaba.com>,
        Phil Auld <pauld@...hat.com>,
        Qais Yousef <qais.yousef@....com>, Qian Cai <cai@....pw>,
        Quentin Perret <qperret@...gle.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Valentin Schneider <vschneid@...hat.com>,
        Vincent Donnefort <vincent.donnefort@....com>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Waiman Long <longman@...hat.com>,
        Will Deacon <will@...nel.org>,
        Yafang Shao <laoar.shao@...il.com>,
        YueHaibing <yuehaibing@...wei.com>,
        Zhen Ni <nizhen@...ontech.com>,
        Davidlohr Bueso <dave@...olabs.net>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Marcelo Tosatti <mtosatti@...hat.com>,
        Clark Williams <williams@...hat.com>,
        Mel Gorman <mgorman@...e.de>, Ben Segall <bsegall@...gle.com>,
        John Stultz <jstultz@...gle.com>,
        David Vernet <void@...ifault.com>,
        Vlastimil Babka <vbabka@...e.cz>, Chris Mason <clm@...com>,
        Tejun Heo <tj@...nel.org>,
        Luca Abeni <luca.abeni@...tannapisa.it>,
        John Kacur <jkacur@...hat.com>,
        John Ogness <john.ogness@...utronix.de>,
        "paulmck@...nel.org" <paulmck@...nel.org>,
        Jonathan Corbet <corbet@....net>,
        Vineeth Remanan Pillai <vineeth@...byteword.org>,
        Kate Carcia <kcarcia@...hat.com>,
        Kate Stewart <kstewart@...uxfoundation.org>,
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        Luis Claudio R. Gonçalves <lclaudio@...hat.com>,
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        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [ANNOUNCEMENT] CFP: Real-time and Scheduling MC at LPC

Hello

This is a gentle reminder about RT and SCHED MC. We will have to send the
schedule on the next weeks. Please, submit your topic ASAP.

Thanks!

On 6/20/23 19:13, Daniel Bristot de Oliveira wrote:
> The real-time and scheduling micro-conference joins these two
> intrinsically connected communities to discuss the next steps together.
> 
> Over the past decade, many parts of PREEMPT_RT have been included
> in the official Linux codebase. Examples include real-time mutexes,
> high-resolution timers, lockdep, ftrace, RCU_PREEMPT, threaded interrupt
> handlers, and more. The number of patches that need integration has been
> significantly reduced, and the rest is mature enough to make their way
> into mainline Linux.
> 
> The scheduler is at the core of Linux performance. With different
> topologies and workloads, giving the user the best experience possible is
> challenging, from low latency to high throughput and from small
> power-constrained devices to HPC, where CPU isolation is critical.
> 
> The following accomplishments have been made as a result of last
> year’s micro-conference:
> 
>  - Progress on rtla/osnoise to support any workload [1]
>  - Progress on adding tracepoints for IPI [2]
>  - Improvements in RCU to reduce noise
>  - Progress on the latency-nice patch set [3]
> 
> Ideas of topics to be discussed include (but are not limited to):
> 
>  - Improve responsiveness for CFS tasks - e.g., latency-nice patch
>  - The new EEVDF scheduler proposal [4]
>  - Impact of new topology on CFS including hybrid or heterogeneous system
>  - Taking into account task profile with IPCC or uclamp
>  - Improvements in CPU Isolation
>  - The status of PREEMPT_RT
>  - Locking improvements - e.g., proxy execution [5]
>  - Improvements on SCHED_DEADLINE
>  - Tooling for debugging scheduling and real-time
> 
> It is fine if you have a new topic that is not on the list.
> People are encouraged to submit any topic related to real-time
> and scheduling.
> 
> Please consider that the goal is to discuss open problems, preferably
> with patch set submissions already in discussion on LKML. The
> presentations are very short, and the main portion of the time should
> be given to the debate - thus, the importance of having an
> open and relevant problem, with people in the community engaged
> in the solution.
> 
> Submissions are made via LPC submission systems, selecting *Track Real-time
> and Scheduling MC*
> 
> Please, forward this email for people interested on this subject (it not easy to
> build the Cc: list for this email without forgetting important people :-))!
> 
> [1] https://lore.kernel.org/lkml/f5cfbd37aefd419eefe9243b4d2fc38ed5753fe4.1668692096.git.bristot@kernel.org/
> [2] https://lore.kernel.org/lkml/20230307143558.294354-1-vschneid@redhat.com/T/
> [3] https://lore.kernel.org/lkml/20230224093454.956298-3-vincent.guittot@linaro.org/
> [4] https://lore.kernel.org/lkml/20230328092622.062917921@infradead.org/T/
> [5] https://lore.kernel.org/lkml/20230411042511.1606592-1-jstultz@google.com/
> 
> Thanks!
> 
> -- Organizers:
>  - Daniel Bristot de Oliveira
>  - Juri Lelli
>  - Vincent Guittot
>  - Steven Rostedt