From: John Stultz <jstultz@google.com>
To: Metin Kaya <metin.kaya@arm.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Joel Fernandes <joelaf@google.com>,
Qais Yousef <qyousef@google.com>, 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>,
Valentin Schneider <vschneid@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>,
Zimuzo Ezeozue <zezeozue@google.com>,
Youssef Esmat <youssefesmat@google.com>,
Mel Gorman <mgorman@suse.de>,
Daniel Bristot de Oliveira <bristot@redhat.com>,
Will Deacon <will@kernel.org>, Waiman Long <longman@redhat.com>,
Boqun Feng <boqun.feng@gmail.com>,
"Paul E. McKenney" <paulmck@kernel.org>,
Xuewen Yan <xuewen.yan94@gmail.com>,
K Prateek Nayak <kprateek.nayak@amd.com>,
Thomas Gleixner <tglx@linutronix.de>,
kernel-team@android.com
Subject: Re: [PATCH v7 00/23] Proxy Execution: A generalized form of Priority Inheritance v7
Date: Thu, 21 Dec 2023 09:13:42 -0800 [thread overview]
Message-ID: <CANDhNCrHd+5twWVNqBAhVLfhMhkiO0KjxXBmwVgaCD4kAyFyWw@mail.gmail.com> (raw)
In-Reply-To: <2b4bb9ce-fe92-47fe-9185-e29571502ae9@arm.com>
On Thu, Dec 21, 2023 at 12:35 AM Metin Kaya <metin.kaya@arm.com> wrote:
> On 20/12/2023 12:18 am, John Stultz wrote:
> >
> > As Connor outlined in a previous submission of this patch series,
>
> Nit: Better to have a reference to Connor's patch series (i.e.,
> https://lore.kernel.org/lkml/20221003214501.2050087-1-connoro@google.com/)
> here?
Yes, thank you for providing the link!
> > * As discussed at OSPM[5], I like to split pick_next_task() up
> > into two phases selecting and setting the next tasks, as
> > currently pick_next_task() assumes the returned task will be
> > run which results in various side-effects in sched class logic
> > when it’s run. I tried to take a pass at this earlier, but
> > it’s hairy and lower on the priority list for now.
>
> Do you think we should mention virtual runqueue idea and adding trace
> points to measure task migration times? They are not "open issues", but
> kind of to-do items in the agenda.
>
I appreciate you bringing those up. The virtual runqueue idea is still
a bit handwavy, but the trace points are a good item for the TODO.
Apologies for missing it, as you suggested it just the other day as I
was prepping these patches, and I didn't go back to add it here in the
cover letter.
thanks
-john
prev parent reply other threads:[~2023-12-21 17:13 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-20 0:18 [PATCH v7 00/23] Proxy Execution: A generalized form of Priority Inheritance v7 John Stultz
2023-12-20 0:18 ` [PATCH v7 01/23] sched: Unify runtime accounting across classes John Stultz
2023-12-20 0:18 ` [PATCH v7 02/23] locking/mutex: Remove wakeups from under mutex::wait_lock John Stultz
2023-12-20 0:18 ` [PATCH v7 03/23] locking/mutex: Make mutex::wait_lock irq safe John Stultz
2023-12-20 0:18 ` [PATCH v7 04/23] locking/mutex: Expose __mutex_owner() John Stultz
2023-12-20 0:18 ` [PATCH v7 05/23] locking/mutex: Rework task_struct::blocked_on John Stultz
2023-12-21 10:13 ` Metin Kaya
2023-12-21 17:52 ` John Stultz
2023-12-20 0:18 ` [PATCH v7 06/23] sched: Add CONFIG_SCHED_PROXY_EXEC & boot argument to enable/disable John Stultz
2023-12-20 1:04 ` Randy Dunlap
2023-12-21 17:05 ` John Stultz
2023-12-28 15:06 ` Metin Kaya
2024-01-10 22:36 ` John Stultz
2023-12-20 0:18 ` [PATCH v7 07/23] locking/mutex: Switch to mutex handoffs for CONFIG_SCHED_PROXY_EXEC John Stultz
2023-12-20 0:18 ` [PATCH v7 08/23] sched: Split scheduler and execution contexts John Stultz
2023-12-21 10:43 ` Metin Kaya
2023-12-21 18:23 ` John Stultz
2024-01-03 14:49 ` Valentin Schneider
2024-01-10 22:24 ` John Stultz
2023-12-20 0:18 ` [PATCH v7 09/23] sched: Fix runtime accounting w/ split exec & sched contexts John Stultz
2024-01-03 13:47 ` Valentin Schneider
2023-12-20 0:18 ` [PATCH v7 10/23] sched: Split out __sched() deactivate task logic into a helper John Stultz
2023-12-21 12:30 ` Metin Kaya
2023-12-21 18:49 ` John Stultz
2023-12-20 0:18 ` [PATCH v7 11/23] sched: Add a initial sketch of the find_proxy_task() function John Stultz
2023-12-21 12:55 ` Metin Kaya
2023-12-21 19:12 ` John Stultz
2023-12-20 0:18 ` [PATCH v7 12/23] sched: Fix proxy/current (push,pull)ability John Stultz
2023-12-21 15:03 ` Metin Kaya
2023-12-21 21:02 ` John Stultz
2023-12-20 0:18 ` [PATCH v7 13/23] sched: Start blocked_on chain processing in find_proxy_task() John Stultz
2023-12-21 15:30 ` Metin Kaya
2023-12-20 0:18 ` [PATCH v7 14/23] sched: Handle blocked-waiter migration (and return migration) John Stultz
2023-12-21 16:12 ` Metin Kaya
2023-12-21 19:46 ` John Stultz
2024-01-02 15:33 ` Phil Auld
2024-01-04 23:33 ` John Stultz
2023-12-20 0:18 ` [PATCH v7 15/23] sched: Add blocked_donor link to task for smarter mutex handoffs John Stultz
2023-12-20 0:18 ` [PATCH v7 16/23] sched: Add deactivated (sleeping) owner handling to find_proxy_task() John Stultz
2023-12-22 8:33 ` Metin Kaya
2024-01-04 23:25 ` John Stultz
2023-12-20 0:18 ` [PATCH v7 17/23] sched: Initial sched_football test implementation John Stultz
2023-12-20 0:59 ` Randy Dunlap
2023-12-20 2:37 ` John Stultz
2023-12-22 9:32 ` Metin Kaya
2024-01-05 5:20 ` John Stultz
2023-12-28 15:19 ` Metin Kaya
2024-01-05 5:22 ` John Stultz
2023-12-28 16:36 ` Metin Kaya
2024-01-05 5:25 ` John Stultz
2023-12-20 0:18 ` [PATCH v7 18/23] sched: Add push_task_chain helper John Stultz
2023-12-22 10:32 ` Metin Kaya
2023-12-20 0:18 ` [PATCH v7 19/23] sched: Consolidate pick_*_task to task_is_pushable helper John Stultz
2023-12-22 10:23 ` Metin Kaya
2024-01-04 23:44 ` John Stultz
2023-12-20 0:18 ` [PATCH v7 20/23] sched: Push execution and scheduler context split into deadline and rt paths John Stultz
2023-12-22 11:33 ` Metin Kaya
2024-01-05 0:01 ` John Stultz
2023-12-20 0:18 ` [PATCH v7 21/23] sched: Add find_exec_ctx helper John Stultz
2023-12-22 11:57 ` Metin Kaya
2024-01-05 3:12 ` John Stultz
2023-12-20 0:18 ` [PATCH v7 22/23] sched: Refactor dl/rt find_lowest/latest_rq logic John Stultz
2023-12-22 13:52 ` Metin Kaya
2023-12-20 0:18 ` [PATCH v7 23/23] sched: Fix rt/dl load balancing via chain level balance John Stultz
2023-12-22 14:51 ` Metin Kaya
2024-01-05 3:42 ` John Stultz
2023-12-21 8:35 ` [PATCH v7 00/23] Proxy Execution: A generalized form of Priority Inheritance v7 Metin Kaya
2023-12-21 17:13 ` John Stultz [this message]
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