linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Michal Hocko <mhocko@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>,
	Thomas Gleixner <tglx@linutronix.de>
Cc: Mel Gorman <mgorman@suse.de>,
	Frederic Weisbecker <fweisbecker@suse.de>,
	Ingo Molnar <mingo@redhat.com>,
	LKML <linux-kernel@vger.kernel.org>
Subject: [RFC PATCH v2 0/5] allow overriding default preempt mode from command line
Date: Fri,  9 Oct 2020 14:29:21 +0200	[thread overview]
Message-ID: <20201009122926.29962-1-mhocko@kernel.org> (raw)
In-Reply-To: <20201007120401.11200-1-mhocko@kernel.org>

Hi,
let me repost the pile that has grown from the initial patch based on
the review feedback I have collected from Peter. I do realize that he
also suggested to go from the other direction and implement this for the
full preemption mode first. As I've said I believe this would require to
examine all CONFIG_PREEMPTION code paths and preempt_mode=[none,voluntary]
is already quite useful for distributions which are targeting high
throuhput and desktop environments. Adding full preemption on top is
definitely desirable and something we will be looking into. This is the
first step in that direction.

If maintainers really believe that starting from the full preemption
mode first then we are willing to explore that path of course.

I am stil posting that as an RFC because I didn't get to push this
through a complete compile time testing and rely on 0-day bot in that
aspect.

Thanks and I am looking forward for a further feedback.



  parent reply	other threads:[~2020-10-09 12:30 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-07 12:04 [RFC PATCH] kernel: allow to configure PREEMPT_NONE, PREEMPT_VOLUNTARY on kernel command line Michal Hocko
2020-10-07 12:19 ` Peter Zijlstra
2020-10-07 12:29   ` Michal Hocko
2020-10-07 13:01     ` Mel Gorman
2020-10-07 12:21 ` Peter Zijlstra
2020-10-07 12:35   ` Michal Hocko
2020-10-09  9:47     ` Peter Zijlstra
2020-10-09 10:14       ` Michal Hocko
2020-10-09 10:20         ` Peter Zijlstra
2020-10-09 10:48           ` Michal Hocko
2020-10-09 11:17             ` Michal Hocko
2020-10-09 11:26               ` Michal Hocko
2020-10-09 11:39             ` Peter Zijlstra
2020-10-09  9:12 ` Michal Hocko
2020-10-09  9:42   ` Peter Zijlstra
2020-10-09 10:10     ` Michal Hocko
2020-10-09 10:14       ` Peter Zijlstra
2020-10-09 10:37         ` Michal Hocko
2020-10-09 11:42           ` Peter Zijlstra
2020-10-09 12:29 ` Michal Hocko [this message]
2020-10-09 12:29   ` [RFC PATCH v2 1/5] jump_label: split out declaration parts into its own headers Michal Hocko
2020-10-09 12:29   ` [RFC PATCH v2 2/5] kernel: allow to configure PREEMPT_NONE, PREEMPT_VOLUNTARY on kernel command line Michal Hocko
2020-10-09 12:29   ` [RFC PATCH v2 3/5] kernel: ARCH_NO_PREEMPT shouldn't exclude PREEMPT_VOLUNTARY Michal Hocko
2020-10-09 12:29   ` [RFC PATCH v2 4/5] kernel: introduce CONFIG_PREEMPT_DYNAMIC Michal Hocko
2020-10-09 12:29   ` [RFC PATCH v2 5/5] kernel: drop PREEMPT_NONE compile time option Michal Hocko
2020-10-09 12:50   ` [RFC PATCH v2 0/5] allow overriding default preempt mode from command line Peter Zijlstra
2020-10-09 13:03     ` Michal Hocko
2020-10-09 13:22       ` Peter Zijlstra
2020-10-09 17:45   ` Peter Zijlstra
2020-10-27 12:22     ` Frederic Weisbecker
2020-10-27 12:28       ` Peter Zijlstra

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=20201009122926.29962-1-mhocko@kernel.org \
    --to=mhocko@kernel.org \
    --cc=fweisbecker@suse.de \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mgorman@suse.de \
    --cc=mingo@redhat.com \
    --cc=peterz@infradead.org \
    --cc=tglx@linutronix.de \
    /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;
as well as URLs for NNTP newsgroup(s).