From: jamal <hadi@cyberus.ca>
To: Benjamin LaHaise <bcrl@redhat.com>
Cc: <kuznet@ms2.inr.ac.ru>, <mingo@elte.hu>,
<linux-kernel@vger.kernel.org>, <Robert.Olsson@data.slu.se>,
<netdev@oss.sgi.com>, <torvalds@transmeta.com>,
<alan@lxorguk.ukuu.org.uk>
Subject: Re: [announce] [patch] limiting IRQ load, irq-rewrite-2.4.11-B5
Date: Wed, 3 Oct 2001 21:39:50 -0400 (EDT) [thread overview]
Message-ID: <Pine.GSO.4.30.0110032130370.8016-100000@shell.cyberus.ca> (raw)
In-Reply-To: <20011003213010.F3780@redhat.com>
On Wed, 3 Oct 2001, Benjamin LaHaise wrote:
> On Wed, Oct 03, 2001 at 09:10:10PM -0400, jamal wrote:
> > > Well, this sounds like a 2.5 patch. When do we get to merge it?
> >
> >
> > It is backward compatible to 2.4 netif_rx() which means it can go in now.
> > The problem is netdrivers that want to use the interface have to be
> > morphed.
>
> I'm alluding to the fact that we need a place to put in-development patches.
>
Sorry ;-> Yes, where is is 2.5 again? ;->
> > As a general disclaimer, i really dont mean to put down Ingo's efforts i
> > just think the irq mitigation idea as is now is wrong for both 2.4 and 2.5
>
> What is your solution to the problem? Leaving it up to the driver authors
> doesn't work as they're not perfect. Yes, drivers should attempt to do a
> good job at irq mitigation, but sometimes a safety net is needed.
>
To be honest i am getting a little nervous with what i saw in something
that seems to be a stable kernel. I was nervous when i saw ksoftirq, but
its already in there. I think we can use the ksoftirq replacement pending
testing to show if latency is improved. I have time this weekend, if that
patch can be isolated it can be tested with NAPI etc.
As for the irq mitigation, in its current form it is insufficient; but
would be OK to go into 2.5 with plans to go and implement the isolation
feature. I would put NAPI into this same category. We can then backport
both back to 2.4.
With current 2.4, i say yes, we leave it to the drivers (and infact claim
we have a sustainable solution if conformed to)
cheers,
jamal
next prev parent reply other threads:[~2001-10-04 1:42 UTC|newest]
Thread overview: 151+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-02 0:41 [announce] [patch] limiting IRQ load, irq-rewrite-2.4.11-B5 jamal
2001-10-02 1:04 ` Benjamin LaHaise
2001-10-02 1:54 ` jamal
2001-10-02 5:13 ` Benjamin LaHaise
2001-10-02 5:55 ` Ben Greear
2001-10-03 9:22 ` Ingo Molnar
2001-10-03 14:06 ` David Brownell
2001-10-02 12:10 ` jamal
2001-10-02 22:00 ` jamal
2001-10-03 8:34 ` Ingo Molnar
2001-10-03 9:29 ` Helge Hafting
2001-10-03 12:49 ` jamal
2001-10-03 14:51 ` Ingo Molnar
2001-10-03 15:14 ` jamal
2001-10-03 17:28 ` Ingo Molnar
2001-10-04 0:53 ` jamal
2001-10-04 6:28 ` Ingo Molnar
2001-10-04 11:34 ` jamal
2001-10-04 17:40 ` Andreas Dilger
2001-10-04 18:33 ` jamal
2001-10-04 6:50 ` Ben Greear
2001-10-04 6:52 ` Ingo Molnar
2001-10-04 11:50 ` jamal
2001-10-04 6:55 ` Jeff Garzik
2001-10-04 6:56 ` Ingo Molnar
2001-10-04 21:28 ` Alex Bligh - linux-kernel
2001-10-04 21:49 ` Benjamin LaHaise
2001-10-04 23:20 ` Alex Bligh - linux-kernel
2001-10-04 23:26 ` Benjamin LaHaise
2001-10-04 23:47 ` Robert Love
2001-10-04 23:51 ` Linus Torvalds
2001-10-05 0:00 ` Ben Greear
2001-10-05 0:18 ` Davide Libenzi
2001-10-05 2:01 ` jamal
2001-10-04 22:01 ` Simon Kirby
2001-10-04 23:25 ` Alex Bligh - linux-kernel
2001-10-04 23:34 ` Simon Kirby
2001-10-04 22:10 ` Alan Cox
2001-10-04 23:28 ` Alex Bligh - linux-kernel
2001-10-05 15:22 ` Robert Olsson
2001-10-03 9:38 ` Ingo Molnar
2001-10-03 13:03 ` jamal
2001-10-03 13:25 ` jamal
2001-10-03 15:28 ` Ingo Molnar
2001-10-03 15:56 ` jamal
2001-10-03 16:51 ` Ingo Molnar
2001-10-04 0:46 ` jamal
2001-10-08 0:31 ` Andrea Arcangeli
2001-10-08 4:58 ` Bernd Eckenfels
2001-10-08 15:00 ` Alan Cox
2001-10-08 15:03 ` Jeff Garzik
2001-10-08 15:12 ` Alan Cox
2001-10-08 15:09 ` jamal
2001-10-08 15:22 ` Alan Cox
2001-10-08 15:20 ` jamal
2001-10-08 15:35 ` Alan Cox
2001-10-08 15:57 ` jamal
2001-10-08 16:11 ` Alan Cox
2001-10-08 16:11 ` jamal
2001-10-10 16:26 ` Pavel Machek
2001-10-10 16:25 ` Pavel Machek
2001-10-08 15:24 ` Andrea Arcangeli
2001-10-08 15:35 ` Alan Cox
2001-10-08 15:19 ` Andrea Arcangeli
2001-10-08 15:10 ` bill davidsen
2001-10-03 21:08 ` Robert Olsson
2001-10-03 22:22 ` Andreas Dilger
2001-10-04 17:32 ` Davide Libenzi
2001-10-05 14:52 ` Robert Olsson
2001-10-05 18:48 ` Andreas Dilger
2001-10-05 19:07 ` Davide Libenzi
2001-10-05 19:17 ` kuznet
2001-10-08 13:58 ` jamal
2001-10-08 17:42 ` Robert Olsson
2001-10-08 17:39 ` jamal
2001-10-07 6:11 ` Robert Olsson
2001-10-03 16:53 ` kuznet
2001-10-03 17:06 ` Ingo Molnar
2001-10-04 0:44 ` jamal
2001-10-04 6:35 ` Ingo Molnar
2001-10-04 11:41 ` jamal
2001-10-05 16:42 ` kuznet
2001-10-04 13:05 ` Robert Olsson
2001-10-03 19:03 ` Benjamin LaHaise
2001-10-04 1:10 ` jamal
2001-10-04 1:30 ` Benjamin LaHaise
2001-10-03 22:31 ` Rob Landley
2001-10-04 1:39 ` jamal [this message]
2001-10-03 15:42 ` Ben Greear
2001-10-03 15:58 ` jamal
2001-10-03 16:09 ` Ben Greear
2001-10-03 16:14 ` Ingo Molnar
2001-10-03 16:20 ` Jeff Garzik
2001-10-03 16:33 ` Linus Torvalds
2001-10-03 17:25 ` Ingo Molnar
2001-10-03 18:11 ` Linus Torvalds
2001-10-03 20:41 ` Jeremy Hansen
2001-10-03 20:02 ` Simon Kirby
2001-10-04 1:04 ` jamal
2001-10-04 6:47 ` Ben Greear
2001-10-04 7:41 ` Henning P. Schmiedehausen
2001-10-04 16:09 ` Ben Greear
2001-10-04 17:32 ` Henning P. Schmiedehausen
2001-10-04 18:03 ` Ben Greear
2001-10-04 18:30 ` Christopher E. Brown
2001-10-04 11:47 ` jamal
2001-10-04 15:56 ` Ben Greear
2001-10-04 18:23 ` jamal
2001-10-04 6:50 ` Ingo Molnar
2001-10-04 11:49 ` jamal
2001-10-04 8:45 ` Simon Kirby
2001-10-04 11:54 ` jamal
2001-10-04 15:03 ` Tim Hockin
2001-10-04 18:55 ` Ion Badulescu
2001-10-04 19:00 ` jamal
2001-10-04 21:16 ` Ion Badulescu
2001-10-04 4:12 ` bill davidsen
2001-10-04 18:16 ` Alan Cox
2001-10-03 13:38 ` Robert Olsson
2001-10-04 21:22 ` Alex Bligh - linux-kernel
2001-10-05 14:32 ` Robert Olsson
2001-10-03 8:38 ` Ingo Molnar
2001-10-04 3:50 ` bill davidsen
2001-10-02 17:03 ` Robert Olsson
2001-10-02 17:37 ` jamal
2001-10-02 19:46 ` Andreas Dilger
-- strict thread matches above, loose matches on Subject: below --
2001-10-08 14:45 jamal
2001-10-09 0:36 ` Scott Laird
2001-10-09 3:17 ` jamal
2001-10-09 4:04 ` Werner Almesberger
2001-10-04 8:25 Magnus Redin
2001-10-04 11:39 ` Trever L. Adams
[not found] <200110031811.f93IBoN10026@penguin.transmeta.com>
2001-10-03 18:23 ` Ingo Molnar
2001-10-04 9:19 ` BALBIR SINGH
2001-10-04 9:22 ` Ingo Molnar
2001-10-04 9:49 ` BALBIR SINGH
2001-10-04 10:25 ` Ingo Molnar
2001-10-07 20:37 ` Andrea Arcangeli
2001-10-03 14:15 Manfred Spraul
2001-10-03 15:09 ` jamal
2001-10-03 18:37 ` Davide Libenzi
2001-10-01 22:16 Ingo Molnar
2001-10-01 22:26 ` Tim Hockin
2001-10-01 22:50 ` Ingo Molnar
2001-10-01 22:36 ` Andreas Dilger
2001-10-01 22:50 ` Ben Greear
2001-10-02 14:30 ` Alan Cox
2001-10-02 20:51 ` Ingo Molnar
2001-10-01 23:03 ` Linus Torvalds
2001-10-02 6:50 ` Marcus Sundberg
2001-10-03 8:47 ` Ingo Molnar
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