From: Juri Lelli <juri.lelli@redhat.com>
To: "Michal Koutný" <mkoutny@suse.com>
Cc: Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
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>,
Valentin Schneider <vschneid@redhat.com>,
linux-kernel@vger.kernel.org,
Luca Abeni <luca.abeni@santannapisa.it>,
Tommaso Cucinotta <tommaso.cucinotta@santannapisa.it>,
Thomas Gleixner <tglx@linutronix.de>,
Joel Fernandes <joel@joelfernandes.org>,
Vineeth Pillai <vineeth@bitbyteword.org>,
Shuah Khan <skhan@linuxfoundation.org>,
Phil Auld <pauld@redhat.com>,
Suleiman Souhlal <suleiman@google.com>
Subject: Re: [PATCH V7 9/9] sched/rt: Remove default bandwidth control
Date: Mon, 2 Dec 2024 10:39:13 +0100 [thread overview]
Message-ID: <Z02AQe4iUsOTYa-4@jlelli-thinkpadt14gen4.remote.csb> (raw)
In-Reply-To: <2aqeakf4rbed2hnt46yvdospzntpvp7ndrk4xnv6rrh7ctijes@d3nzwnguheju>
On 29/11/24 21:21, Michal Koutný wrote:
> On Fri, Nov 29, 2024 at 03:44:53PM GMT, Juri Lelli <juri.lelli@redhat.com> wrote:
> > You can disable admission control by echoing -1 in sched_rt_runtime_us,
> > but still have the dl_server working for SCHED_NORMAL tasks. By
> > disabling admission control SCHED_DEADLINE can indeed monopolize CPU
> > (over subscription).
>
> | I'm wondering if different values of Δ mean anything or how they can
> | be used.
>
> Aha, the knob therefore remains relevant for the DL admission control.
>
> So if I put it together, I will write it down like this:
Ah, yes sounds good to me, thanks for writing it down properly! :)
If you send it out as a separate patch, please feel free to add
Acked-by: Juri Lelli <juri.lelli@redhat.com>
Best,
Juri
next prev parent reply other threads:[~2024-12-02 9:39 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-27 12:06 [PATCH V7 0/9] SCHED_DEADLINE server infrastructure Daniel Bristot de Oliveira
2024-05-27 12:06 ` [PATCH V7 1/9] sched/deadline: Comment sched_dl_entity::dl_server variable Daniel Bristot de Oliveira
2024-07-29 10:34 ` [tip: sched/core] " tip-bot2 for Daniel Bristot de Oliveira
2024-05-27 12:06 ` [PATCH V7 2/9] sched/core: Add clearing of ->dl_server in put_prev_task_balance() Daniel Bristot de Oliveira
2024-07-29 10:34 ` [tip: sched/core] " tip-bot2 for Joel Fernandes (Google)
2024-05-27 12:06 ` [PATCH V7 3/9] sched/core: Clear prev->dl_server in CFS pick fast path Daniel Bristot de Oliveira
2024-07-29 10:34 ` [tip: sched/core] " tip-bot2 for Youssef Esmat
2024-05-27 12:06 ` [PATCH V7 4/9] sched/fair: Add trivial fair server Daniel Bristot de Oliveira
2024-07-29 10:34 ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2024-05-27 12:06 ` [PATCH V7 5/9] sched/deadline: Deferrable dl server Daniel Bristot de Oliveira
2024-07-29 10:34 ` [tip: sched/core] " tip-bot2 for Daniel Bristot de Oliveira
2024-05-27 12:06 ` [PATCH V7 6/9] sched/fair: Fair server interface Daniel Bristot de Oliveira
2024-07-29 10:34 ` [tip: sched/core] " tip-bot2 for Daniel Bristot de Oliveira
2024-05-27 12:06 ` [PATCH V7 7/9] sched/core: Fix priority checking for DL server picks Daniel Bristot de Oliveira
2024-07-29 10:34 ` [tip: sched/core] " tip-bot2 for Joel Fernandes (Google)
2024-05-27 12:06 ` [PATCH V7 8/9] sched/core: Fix picking of tasks for core scheduling with DL server Daniel Bristot de Oliveira
2024-07-29 10:34 ` [tip: sched/core] " tip-bot2 for Joel Fernandes (Google)
2024-05-27 12:06 ` [PATCH V7 9/9] sched/rt: Remove default bandwidth control Daniel Bristot de Oliveira
2024-07-29 10:34 ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2024-11-27 10:55 ` [PATCH V7 9/9] " Michal Koutný
2024-11-27 15:35 ` Juri Lelli
2024-11-29 10:02 ` Michal Koutný
2024-11-29 14:44 ` Juri Lelli
2024-11-29 20:21 ` Michal Koutný
2024-12-02 9:39 ` Juri Lelli [this message]
2024-06-21 13:37 ` [PATCH V7 0/9] SCHED_DEADLINE server infrastructure Juri Lelli
2024-06-21 13:43 ` Daniel Bristot de Oliveira
2024-06-21 13:50 ` Juri Lelli
2024-06-21 14:41 ` Vineeth Remanan Pillai
2024-06-21 14:59 ` Daniel Bristot de Oliveira
2024-06-21 15:09 ` Vineeth Remanan Pillai
2024-06-21 15:16 ` Daniel Bristot de Oliveira
2024-07-29 10:32 ` Peter Zijlstra
2024-07-29 20:42 ` Vineeth Remanan Pillai
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