From: "David S. Miller" <davem@davemloft.net>
To: Baruch Even <baruch@ev-en.org>
Cc: shemminger@osdl.org, rhee@eos.ncsu.edu, jheffner@psc.edu,
Yee-Ting.Li@nuim.ie, netdev@oss.sgi.com
Subject: Re: netif_rx packet dumping
Date: Thu, 3 Mar 2005 13:57:18 -0800 [thread overview]
Message-ID: <20050303135718.2e1a0170.davem@davemloft.net> (raw)
In-Reply-To: <42278554.2090902@ev-en.org>
On Thu, 03 Mar 2005 21:44:52 +0000
Baruch Even <baruch@ev-en.org> wrote:
> The current linked list goes over all the packets, the linked list we
> add is for the packets that were not SACKed. The idea being that it is a
> lot faster since there are a lot less packets not SACKed compared to
> packets already SACKed (or never mentioned in SACKs).
>
> If you have a way around this I'd be happy to hear it.
I'm sure you can find a way to steal sizeof(void *) from
"struct tcp_skb_cb" :-)
It is currently 36 bytes on both 32-bit and 64-bit platforms.
This means if you can squeeze out 4 bytes (so that it fits
in the skb->cb[] 40 byte area), you can fit a pointer in there
for the linked list stuff.
I'll try to brain storm on this as well.
next prev parent reply other threads:[~2005-03-03 21:57 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-03 20:38 netif_rx packet dumping Stephen Hemminger
2005-03-03 20:55 ` David S. Miller
2005-03-03 21:01 ` Stephen Hemminger
2005-03-03 21:18 ` jamal
2005-03-03 21:21 ` Stephen Hemminger
2005-03-03 21:24 ` jamal
2005-03-03 21:32 ` David S. Miller
2005-03-03 21:54 ` Stephen Hemminger
2005-03-03 22:02 ` John Heffner
2005-03-03 22:26 ` jamal
2005-03-03 23:16 ` Stephen Hemminger
2005-03-03 23:40 ` jamal
2005-03-03 23:48 ` Baruch Even
2005-03-04 3:45 ` jamal
2005-03-04 8:47 ` Baruch Even
2005-03-07 13:55 ` jamal
2005-03-08 15:56 ` Baruch Even
2005-03-08 22:02 ` jamal
2005-03-22 21:55 ` cliff white
2005-03-03 23:48 ` John Heffner
2005-03-04 1:42 ` Lennert Buytenhek
2005-03-04 3:10 ` John Heffner
2005-03-04 3:31 ` Lennert Buytenhek
2005-03-04 19:52 ` Edgar E Iglesias
2005-03-04 19:54 ` Stephen Hemminger
2005-03-04 21:41 ` Edgar E Iglesias
2005-03-04 19:49 ` Jason Lunz
2005-03-03 22:01 ` jamal
2005-03-03 21:26 ` Baruch Even
2005-03-03 21:36 ` David S. Miller
2005-03-03 21:44 ` Baruch Even
2005-03-03 21:54 ` Andi Kleen
2005-03-03 22:04 ` David S. Miller
2005-03-03 21:57 ` David S. Miller [this message]
2005-03-03 22:14 ` Baruch Even
2005-03-08 15:42 ` Baruch Even
2005-03-08 17:00 ` Andi Kleen
2005-03-08 18:01 ` Baruch Even
2005-03-08 18:09 ` David S. Miller
2005-03-08 18:18 ` Andi Kleen
2005-03-08 18:37 ` Thomas Graf
2005-03-08 18:51 ` Arnaldo Carvalho de Melo
2005-03-08 22:16 ` Andi Kleen
2005-03-08 18:27 ` Ben Greear
2005-03-09 23:57 ` Thomas Graf
2005-03-10 0:03 ` Stephen Hemminger
2005-03-10 8:33 ` Andi Kleen
2005-03-10 14:08 ` Thomas Graf
2005-03-31 16:33 ` Baruch Even
2005-03-03 22:03 ` jamal
2005-03-03 22:31 ` Baruch Even
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