From: Steven Rostedt <rostedt@goodmis.org>
To: Brian Hutchinson <b.hutchman@gmail.com>
Cc: linux-trace-users@vger.kernel.org
Subject: Re: Trying to trace when RT FF & RR threads hit RT Throttle limit (kernel.sched_rt_runtime_us)
Date: Tue, 2 May 2023 16:43:11 -0400 [thread overview]
Message-ID: <20230502164311.7081d2f8@gandalf.local.home> (raw)
In-Reply-To: <CAFZh4h-VT8T5VB2roQEw7ADT9hXTp-xn6nJan_QN3XRs_5tDGg@mail.gmail.com>
On Mon, 1 May 2023 15:35:43 -0400
Brian Hutchinson <b.hutchman@gmail.com> wrote:
> I don't "think" anything is moving around here unless the OS is going
> against what it's been told to do. The cpu's are isolated with
> cmdline at boot and the affinity of these processes has been selected
> when they startup so they should stay where they are put unless there
> is something going on I don't know about. I think I've seen talk
> before that the affinity is just a "suggestion" making me think there
> are cases where something could move but if that's true I don't know
> what those scenarios are.
BTW, you may want to email the relevant maintainers of the scheduler (yes,
I'm one of them), because it's getting off topic for linux-trace-users.
-- Steve
prev parent reply other threads:[~2023-05-02 20:43 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-01 4:42 Trying to trace when RT FF & RR threads hit RT Throttle limit (kernel.sched_rt_runtime_us) Brian Hutchinson
2023-05-01 14:17 ` Steven Rostedt
2023-05-01 15:15 ` Brian Hutchinson
2023-05-01 15:21 ` Steven Rostedt
2023-05-01 19:35 ` Brian Hutchinson
2023-05-02 20:43 ` Steven Rostedt [this message]
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