From: luca abeni <luca.abeni@santannapisa.it>
To: Vineeth Pillai <vineeth@bitbyteword.org>
Cc: Juri Lelli <juri.lelli@redhat.com>,
Daniel Bristot de Oliveira <bristot@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Steven Rostedt <rostedt@goodmis.org>,
Joel Fernandes <joel@joelfernandes.org>,
youssefesmat@google.com,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Valentin Schneider <vschneid@redhat.com>,
Jonathan Corbet <corbet@lwn.net>,
linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org
Subject: Re: [PATCH v5 2/2] sched/deadline: Update GRUB description in the documentation
Date: Tue, 30 May 2023 16:12:46 +0200 [thread overview]
Message-ID: <20230530161246.4328421d@nowhere> (raw)
In-Reply-To: <20230530135526.2385378-2-vineeth@bitbyteword.org>
I think this patch is also OK
Thanks,
Luca
On Tue, 30 May 2023 09:55:26 -0400
Vineeth Pillai <vineeth@bitbyteword.org> wrote:
> Update the details of GRUB to reflect the updated logic.
>
> Signed-off-by: Vineeth Pillai (Google) <vineeth@bitbyteword.org>
> ---
> Documentation/scheduler/sched-deadline.rst | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/scheduler/sched-deadline.rst
> b/Documentation/scheduler/sched-deadline.rst index
> 9d9be52f221a..9fe4846079bb 100644 ---
> a/Documentation/scheduler/sched-deadline.rst +++
> b/Documentation/scheduler/sched-deadline.rst @@ -203,12 +203,15 @@
> Deadline Task Scheduling
> - Total bandwidth (this_bw): this is the sum of all tasks
> "belonging" to the runqueue, including the tasks in Inactive state.
>
> + - Maximum usable bandwidth (max_bw): This is the maximum bandwidth
> usable by
> + deadline tasks and is currently set to the RT capacity.
> +
>
> The algorithm reclaims the bandwidth of the tasks in Inactive state.
> It does so by decrementing the runtime of the executing task Ti at
> a pace equal to
>
> - dq = -max{ Ui / Umax, (1 - Uinact - Uextra) } dt
> + dq = -(max{ Ui, (Umax - Uinact - Uextra) } / Umax) dt
>
> where:
>
next prev parent reply other threads:[~2023-05-30 14:13 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-30 13:55 [PATCH v5 1/2] sched/deadline: Fix bandwidth reclaim equation in GRUB Vineeth Pillai
2023-05-30 13:55 ` [PATCH v5 2/2] sched/deadline: Update GRUB description in the documentation Vineeth Pillai
2023-05-30 14:12 ` luca abeni [this message]
2023-06-01 10:35 ` Daniel Bristot de Oliveira
2023-06-01 12:55 ` Juri Lelli
2023-05-30 14:12 ` [PATCH v5 1/2] sched/deadline: Fix bandwidth reclaim equation in GRUB luca abeni
2023-06-01 10:34 ` Daniel Bristot de Oliveira
2023-06-01 11:56 ` Dietmar Eggemann
2023-06-05 1:57 ` Vineeth Remanan Pillai
2023-06-01 12:54 ` Juri Lelli
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