All of lore.kernel.org
 help / color / mirror / Atom feed
From: Markus Franke <Markus.Franke@domain.hid>
To: Xenomai-help@domain.hid
Subject: [Xenomai-help] CONFIG_PREEMPT & irqbench
Date: Wed, 14 Feb 2007 01:01:09 +0100	[thread overview]
Message-ID: <45D25145.3000407@domain.hid> (raw)

Dear all,

I am running some latency tests with irqbench/irqloop. I am wondering
whether it would be possible to achieve better results when activating
CONFIG_PREEMPT and CONFIG_PREEMPT_VOLUNTARILY during the kernel
configuration and running irqloop in User Mode over this kernel? Does it
make any sense? I think in theory it should give better results because
this irqloop runs in secondary(linux) domain when started, right? An
increasing preemptibility of the linux kernel should be better for the
irqloop-task.
All tests were made under heavy I/O and CPU load by means of "dd",
"pingflood" and "cpuburn". Nevertheless, I can only achieve worse
results when activating CONFIG_PREEMPT.


Thanks in advance and regards,

Markus Franke


             reply	other threads:[~2007-02-14  0:01 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-14  0:01 Markus Franke [this message]
2007-02-14  8:53 ` [Xenomai-help] CONFIG_PREEMPT & irqbench Jan Kiszka
2007-02-14  9:00   ` Jan Kiszka
2007-02-14  9:59     ` Markus Franke
2007-02-14 10:17       ` Jan Kiszka
2007-02-14  9:59   ` Markus Franke
2007-02-14 10:28     ` Jan Kiszka
2007-02-14 10:46       ` Markus Franke
2007-02-14 12:10         ` Dmitry Adamushko
2007-02-14 12:54           ` Markus Franke
2007-02-14 12:22         ` Jan Kiszka

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=45D25145.3000407@domain.hid \
    --to=markus.franke@domain.hid \
    --cc=Xenomai-help@domain.hid \
    /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.