From: Valentin Schneider <vschneid@redhat.com>
To: Juri Lelli <juri.lelli@redhat.com>,
linux-kernel@vger.kernel.org, cgroups@vger.kernel.org
Cc: "Ingo Molnar" <mingo@redhat.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"Juri Lelli" <juri.lelli@redhat.com>,
"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>,
"Waiman Long" <longman@redhat.com>, "Tejun Heo" <tj@kernel.org>,
"Johannes Weiner" <hannes@cmpxchg.org>,
"Michal Koutný" <mkoutny@suse.com>,
"Qais Yousef" <qyousef@layalina.io>,
"Sebastian Andrzej Siewior" <bigeasy@linutronix.de>,
"Swapnil Sapkal" <swapnil.sapkal@amd.com>,
"Shrikanth Hegde" <sshegde@linux.ibm.com>,
"Phil Auld" <pauld@redhat.com>,
luca.abeni@santannapisa.it, tommaso.cucinotta@santannapisa.it,
"Jon Hunter" <jonathanh@nvidia.com>
Subject: Re: [PATCH v3 1/8] sched/deadline: Ignore special tasks when rebuilding domains
Date: Wed, 12 Mar 2025 14:32:03 +0100 [thread overview]
Message-ID: <xhsmhr032pe7g.mognet@vschneid-thinkpadt14sgen2i.remote.csb> (raw)
In-Reply-To: <20250310091935.22923-2-juri.lelli@redhat.com>
On 10/03/25 10:19, Juri Lelli wrote:
> SCHED_DEADLINE special tasks get a fake bandwidth that is only used to
> make sure sleeping and priority inheritance 'work', but it is ignored
> for runtime enforcement and admission control.
>
> Be consistent with it also when rebuilding root domains.
>
> Reported-by: Jon Hunter <jonathanh@nvidia.com>
> Fixes: 53916d5fd3c0 ("sched/deadline: Check bandwidth overflow earlier for hotplug")
> Tested-by: Waiman Long <longman@redhat.com>
> Tested-by: Jon Hunter <jonathanh@nvidia.com>
> Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
next prev parent reply other threads:[~2025-03-12 13:32 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-10 9:19 [PATCH v3 0/8] Fix SCHED_DEADLINE bandwidth accounting during suspend Juri Lelli
2025-03-10 9:19 ` [PATCH v3 1/8] sched/deadline: Ignore special tasks when rebuilding domains Juri Lelli
2025-03-12 13:32 ` Valentin Schneider [this message]
2025-03-10 9:33 ` [PATCH v3 2/8] sched/topology: Wrappers for sched_domains_mutex Juri Lelli
2025-03-12 13:32 ` Valentin Schneider
2025-03-10 9:35 ` [PATCH v3 3/8] sched/deadline: Generalize unique visiting of root domains Juri Lelli
2025-03-12 13:32 ` Valentin Schneider
2025-03-10 9:37 ` [PATCH v3 4/8] sched/deadline: Rebuild root domain accounting after every update Juri Lelli
2025-03-10 18:54 ` Dietmar Eggemann
2025-03-10 19:18 ` Waiman Long
2025-03-11 0:16 ` Waiman Long
2025-03-11 11:59 ` Juri Lelli
2025-03-11 12:34 ` Waiman Long
2025-03-11 13:29 ` Dietmar Eggemann
2025-03-11 14:51 ` Waiman Long
2025-03-12 9:53 ` Dietmar Eggemann
2025-03-12 10:09 ` Juri Lelli
2025-03-12 13:55 ` Waiman Long
2025-03-12 14:11 ` Juri Lelli
2025-03-12 16:29 ` Dietmar Eggemann
2025-03-12 16:51 ` Juri Lelli
2025-03-13 9:09 ` Dietmar Eggemann
2025-03-10 9:38 ` [PATCH v3 5/8] sched/topology: Remove redundant dl_clear_root_domain call Juri Lelli
2025-03-12 13:32 ` Valentin Schneider
2025-03-10 9:39 ` [PATCH v3 6/8] cgroup/cpuset: Remove partition_and_rebuild_sched_domains Juri Lelli
2025-03-12 13:32 ` Valentin Schneider
2025-03-10 9:40 ` [PATCH v3 7/8] sched/topology: Stop exposing partition_sched_domains_locked Juri Lelli
2025-03-12 13:32 ` Valentin Schneider
2025-03-10 9:40 ` [PATCH v3 8/8] include/{topology,cpuset}: Move dl_rebuild_rd_accounting to cpuset.h Juri Lelli
2025-03-12 13:32 ` Valentin Schneider
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