From: Jes Sorensen <jes@linuxcare.com>
To: Werner Almesberger <Werner.Almesberger@epfl.ch>
Cc: Jeff Garzik <jgarzik@mandrakesoft.com>,
netdev@oss.sgi.com,
Linux Knernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: New net features for added performance
Date: 12 Mar 2001 16:08:47 +0100 [thread overview]
Message-ID: <d3itlfnhxc.fsf@lxplus015.cern.ch> (raw)
In-Reply-To: <3A9842DC.B42ECD7A@mandrakesoft.com> <20010225132249.J18271@almesberger.net>
In-Reply-To: Werner Almesberger's message of "Sun, 25 Feb 2001 13:22:49 +0100"
>>>>> "Werner" == Werner Almesberger <Werner.Almesberger@epfl.ch> writes:
Werner> Jeff Garzik wrote:
>> 3) Slabbier packet allocation.
Werner> Hmm, this may actually be worse during bursts: if you burst
Werner> exceeds the preallocated size, you have to perform more
Werner> expensive/slower operations (e.g. running a tasklet) to refill
Werner> your cache.
You may want to look at how I did this in the acenic driver. If the
water mark goes below a certain level I schedule the tasklet, if it
gets below an urgent watermark I do the allocation in the interrupt
handler itself.
This is of course mainly useful for cards which give you deep
queues.
Jes
next prev parent reply other threads:[~2001-03-12 15:10 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-24 23:25 New net features for added performance Jeff Garzik
2001-02-24 23:48 ` Andi Kleen
2001-02-25 0:03 ` Jeff Garzik
2001-02-25 0:12 ` Andi Kleen
2000-01-01 0:19 ` Pavel Machek
2001-03-04 1:19 ` LILO error with 2.4.3-pre1 Steven J. Hill
2001-03-04 1:39 ` Keith Owens
2001-03-04 2:27 ` Tom Sightler
2001-03-04 21:32 ` Mircea Damian
2001-03-04 23:05 ` Guest section DW
2001-03-04 2:39 ` Andre Tomt
2001-03-04 3:32 ` Steven J. Hill
2001-03-04 13:35 ` Alan Cox
2001-02-25 0:13 ` New net features for added performance Jeff Garzik
2001-02-25 0:16 ` Andi Kleen
2001-02-25 11:49 ` Rusty Russell
2001-02-26 23:48 ` David S. Miller
2001-02-27 0:03 ` Andi Kleen
2001-02-27 0:08 ` David S. Miller
2001-02-27 2:53 ` Jeremy Jackson
2001-02-27 19:59 ` kuznet
2001-02-25 1:55 ` Michael Richardson
2001-02-25 2:32 ` Jeremy Jackson
2001-02-25 3:23 ` Chris Wedgwood
2001-02-25 12:41 ` Werner Almesberger
2001-02-25 13:57 ` Chris Wedgwood
2001-02-25 2:38 ` Noah Romer
2001-03-03 23:32 ` Jes Sorensen
2001-02-25 12:01 ` Andrew Morton
2001-02-25 15:11 ` Jeremy Jackson
2001-02-25 12:22 ` Werner Almesberger
2001-03-12 15:08 ` Jes Sorensen [this message]
2001-02-25 13:08 ` Jonathan Morton
2001-02-26 23:46 ` David S. Miller
2001-02-27 0:07 ` Jeff Garzik
2001-02-27 0:10 ` David S. Miller
2001-03-01 21:06 ` Jes Sorensen
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