From: Ingo Molnar <mingo@elte.hu>
To: Esben Nielsen <simlo@phys.au.dk>
Cc: Daniel Walker <dwalker@mvista.com>,
linux-kernel@vger.kernel.org, sdietrich@mvista.com
Subject: Re: [PATCH] local_irq_disable removal
Date: Sat, 11 Jun 2005 22:03:52 +0200 [thread overview]
Message-ID: <20050611200352.GA1477@elte.hu> (raw)
In-Reply-To: <Pine.OSF.4.05.10506112123260.2917-100000@da410.phys.au.dk>
* Esben Nielsen <simlo@phys.au.dk> wrote:
> > the jury is still out on the accuracy of those numbers. The test had
> > RT_DEADLOCK_DETECT (and other -RT debugging features) turned on, which
> > mostly work with interrupts disabled. The other question is how were
> > interrupt response times measured.
> >
> You would accept a patch where I made this stuff optional?
I'm not sure why. The soft-flag based local_irq_disable() should in fact
be a tiny bit faster than the cli based approach, on a fair number of
CPUs. But it should definitely not be slower in any measurable way.
Ingo
next prev parent reply other threads:[~2005-06-11 20:04 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-08 7:08 [PATCH] local_irq_disable removal Daniel Walker
2005-06-08 11:21 ` Ingo Molnar
2005-06-08 20:33 ` Daniel Walker
2005-06-09 11:56 ` Ingo Molnar
2005-06-10 23:37 ` Esben Nielsen
2005-06-11 0:20 ` Daniel Walker
2005-06-11 13:13 ` Esben Nielsen
2005-06-11 13:46 ` Ingo Molnar
2005-06-11 14:32 ` Esben Nielsen
2005-06-11 16:36 ` Daniel Walker
2005-06-11 17:26 ` Thomas Gleixner
2005-06-11 18:40 ` Sven-Thorsten Dietrich
2005-06-12 0:07 ` Thomas Gleixner
2005-06-12 0:15 ` Sven-Thorsten Dietrich
2005-06-12 0:22 ` Thomas Gleixner
2005-06-12 0:24 ` Sven-Thorsten Dietrich
2005-06-11 19:16 ` Ingo Molnar
2005-06-11 19:34 ` Esben Nielsen
2005-06-11 19:44 ` Sven-Thorsten Dietrich
2005-06-11 19:53 ` Daniel Walker
2005-06-11 20:23 ` Esben Nielsen
2005-06-11 22:59 ` Sven-Thorsten Dietrich
2005-06-13 5:22 ` Steven Rostedt
2005-06-13 6:20 ` Sven-Thorsten Dietrich
2005-06-13 12:28 ` Steven Rostedt
2005-06-11 20:03 ` Ingo Molnar [this message]
2005-06-11 20:51 ` Daniel Walker
2005-06-11 23:44 ` Thomas Gleixner
2005-06-11 23:50 ` Daniel Walker
2005-06-12 0:01 ` Thomas Gleixner
2005-06-12 0:09 ` Sven-Thorsten Dietrich
2005-06-12 0:28 ` Thomas Gleixner
2005-06-12 1:05 ` Gene Heskett
2005-06-13 12:03 ` Paulo Marques
2005-06-13 12:19 ` Esben Nielsen
2005-06-12 4:50 ` cutaway
2005-06-12 6:57 ` Ingo Molnar
2005-06-12 11:15 ` Esben Nielsen
2005-06-12 11:52 ` Ingo Molnar
2005-06-13 7:01 ` Sven-Thorsten Dietrich
2005-06-13 7:53 ` Esben Nielsen
2005-06-13 8:05 ` Sven-Thorsten Dietrich
2005-06-13 8:54 ` Esben Nielsen
2005-06-13 9:13 ` Ingo Molnar
2005-06-12 15:28 ` Daniel Walker
2005-06-12 4:31 ` Karim Yaghmour
2005-06-12 4:32 ` Daniel Walker
2005-06-12 4:56 ` Karim Yaghmour
2005-06-12 4:55 ` Daniel Walker
2005-06-12 5:16 ` Karim Yaghmour
2005-06-12 5:14 ` Daniel Walker
2005-06-12 5:27 ` Karim Yaghmour
2005-06-12 15:27 ` Zwane Mwaikambo
2005-06-12 15:46 ` Daniel Walker
2005-06-12 19:02 ` Ingo Molnar
2005-06-12 17:02 ` Andi Kleen
2005-06-13 7:08 ` Sven-Thorsten Dietrich
2005-06-13 7:44 ` Esben Nielsen
2005-06-13 7:53 ` Sven-Thorsten Dietrich
2005-06-13 7:56 ` Ingo Molnar
2005-06-13 7:47 ` Ingo Molnar
2005-06-11 16:41 ` Sven-Thorsten Dietrich
2005-06-11 17:16 ` Esben Nielsen
2005-06-11 19:29 ` Sven-Thorsten Dietrich
2005-06-11 20:02 ` Sven-Thorsten Dietrich
2005-06-11 16:19 ` Daniel Walker
2005-06-11 13:51 ` Ingo Molnar
2005-06-11 15:00 ` Mika Penttilä
2005-06-11 16:45 ` Sven-Thorsten Dietrich
2005-06-11 16:53 ` Mika Penttilä
2005-06-11 17:13 ` Daniel Walker
2005-06-11 17:22 ` Mika Penttilä
2005-06-11 17:25 ` Daniel Walker
2005-06-11 17:29 ` Mika Penttilä
2005-06-11 17:30 ` Daniel Walker
2005-06-11 17:55 ` Mika Penttilä
2005-06-11 16:28 ` Daniel Walker
2005-06-11 16:46 ` Esben Nielsen
2005-06-11 16:09 ` Daniel Walker
2005-06-11 16:31 ` Esben Nielsen
2005-06-11 16:51 ` Christoph Hellwig
2005-06-11 22:44 ` Ed Tomlinson
2005-06-12 6:23 ` Ingo Molnar
2005-06-12 9:28 ` Christoph Hellwig
2005-06-13 4:39 ` [RT] " Steven Rostedt
2005-06-16 5:35 ` Lee Revell
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=20050611200352.GA1477@elte.hu \
--to=mingo@elte.hu \
--cc=dwalker@mvista.com \
--cc=linux-kernel@vger.kernel.org \
--cc=sdietrich@mvista.com \
--cc=simlo@phys.au.dk \
/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.