All of lore.kernel.org
 help / color / mirror / Atom feed
From: Matthew Hodgson <matthew@mxtelecom.com>
To: linux-kernel@vger.kernel.org
Subject: Toggling preemption on a running kernel
Date: Fri, 07 Mar 2008 00:04:52 +0000	[thread overview]
Message-ID: <47D086A4.6090103@mxtelecom.com> (raw)

Hi,

I'm trying to compare the performance of some networking code 
(throughput and latency when receiving various volumes of UDP streams) 
between a preemptible and non-preemptible 2.6.24 kernel, and was 
wondering if it is possible to temporarily disable preemption on a 
running preemptible kernel.  Is it just a matter of loading a module 
which calls preempt_enable() at load and preempt_disable() at unload - 
or is that too naive?  Is there an existing way of doing this?

thanks,

Matthew.


-- 
Matthew Hodgson <matthew@mxtelecom.com>
Media & Systems Project Manager
Tel: +44 (0) 845 666 7778
http://www.mxtelecom.com

             reply	other threads:[~2008-03-07  0:29 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-07  0:04 Matthew Hodgson [this message]
2008-03-07 18:46 ` Toggling preemption on a running kernel Bill Davidsen

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=47D086A4.6090103@mxtelecom.com \
    --to=matthew@mxtelecom.com \
    --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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.