From: Rusty Russell <rusty@linuxcare.com.au>
To: Andi Kleen <ak@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: New net features for added performance
Date: Sun, 25 Feb 2001 22:49:39 +1100 [thread overview]
Message-ID: <E14WzgK-00023V-00@halfway> (raw)
In-Reply-To: Your message of "25 Feb 2001 00:48:35 BST." <oupsnl3k5gs.fsf@pigdrop.muc.suse.de>
In message <oupsnl3k5gs.fsf@pigdrop.muc.suse.de> you write:
> Jeff Garzik <jgarzik@mandrakesoft.com> writes:
>
> > Advantages: A de-allocation immediately followed by a reallocation is
> > eliminated, less L1 cache pollution during interrupt handling.
> > Potentially less DMA traffic between card and host.
> >
> > Disadvantages?
>
> You need a new mechanism to cope with low memory situations because the
> drivers can tie up quite a bit of memory (in fact you gave up unified
> memory management).
Also, you still need to "clean" the skb (it can hold device and nfct
references).
Rusty.
--
Premature optmztion is rt of all evl. --DK
next prev parent reply other threads:[~2001-02-25 23:47 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 [this message]
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
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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