From: Victor Julien <victor@inliniac.net>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: "Loke, Chetan" <Chetan.Loke@netscout.com>,
David Miller <davem@davemloft.net>,
netdev@vger.kernel.org
Subject: Re: [PATCH 2/2] packet: Add fanout support.
Date: Tue, 05 Jul 2011 20:34:09 +0200 [thread overview]
Message-ID: <4E135921.1060606@inliniac.net> (raw)
In-Reply-To: <1309890415.2545.13.camel@edumazet-laptop>
On 07/05/2011 08:26 PM, Eric Dumazet wrote:
>>>> What about a hashing scheme based on just the ip addresses? Would make
>>>> rxhash useless for this purpose, but would be a lot simpler overall maybe...
>>>>
>>>
>>> What about loads where a single IP address is used ?
>>
>> How would that be a problem?
>
> Say I want my program able to process 2.000.000 packets per second on my
> 64 cpu machine, but one cpu is only able to process 100.000 pps.
>
> All these packets are coming from IP1, and go to IP2, but thousand of
> different flows are in flight.
>
> We need hash function taking into account source port and destination
> port.
Point taken. I see no other way either.
--
---------------------------------------------
Victor Julien
http://www.inliniac.net/
PGP: http://www.inliniac.net/victorjulien.asc
---------------------------------------------
next prev parent reply other threads:[~2011-07-05 18:34 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-05 4:20 [PATCH 2/2] packet: Add fanout support David Miller
2011-07-05 4:33 ` Eric Dumazet
2011-07-05 4:36 ` David Miller
2011-07-05 6:21 ` Eric Dumazet
2011-07-05 6:56 ` Victor Julien
2011-07-05 7:00 ` Eric Dumazet
2011-07-05 7:06 ` Victor Julien
2011-07-05 7:50 ` David Miller
2011-07-05 7:52 ` Victor Julien
2011-07-05 8:02 ` David Miller
2011-07-05 8:47 ` Hagen Paul Pfeifer
2011-07-05 8:48 ` Victor Julien
2011-07-05 9:01 ` David Miller
2011-07-05 16:03 ` Loke, Chetan
2011-07-05 16:08 ` David Miller
2011-07-05 16:16 ` Eric Dumazet
2011-07-05 16:21 ` Victor Julien
2011-07-05 16:23 ` Eric Dumazet
2011-07-05 17:15 ` Victor Julien
2011-07-05 18:26 ` Eric Dumazet
2011-07-05 18:34 ` Victor Julien [this message]
2011-07-05 17:35 ` Loke, Chetan
2011-07-05 18:20 ` Eric Dumazet
2011-07-05 21:10 ` Loke, Chetan
2011-07-05 7:48 ` David Miller
2011-07-05 7:46 ` David Miller
2011-07-05 9:50 ` Eric Dumazet
2011-07-05 10:07 ` David Miller
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