From: Chris Friesen <cbf123@usask.ca>
To: LKML <linux-kernel@vger.kernel.org>
Subject: is there any dynamic equivalent to the "isolcpus=managed_irq" boot arg?
Date: Thu, 24 Oct 2024 13:04:04 -0600 [thread overview]
Message-ID: <a6a073ef-e208-44cb-b41f-85c29c42ee9c@usask.ca> (raw)
Hi all,
In the kernel boot args we can specify something like
"isolcpus=managed_irq,nohz,domain,<cpu-list>" to tell the kernel to
isolate a given set of CPUs and *also* prevent them from being targeted
by managed interrupts.
The boot-time isolcpus mechanism is deprecated, so is there a runtime
equivalent to tell the kernel to avoid certain CPUs for managed
interrupts? I just stumbled over https://lkml.org/lkml/2024/9/16/563
which makes me think the answer might be that no such mechanism exists
currently.
I'm not subscribed to the list so please CC me on replies.
Thanks,
Chris Friesen
reply other threads:[~2024-10-24 19:04 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=a6a073ef-e208-44cb-b41f-85c29c42ee9c@usask.ca \
--to=cbf123@usask.ca \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®