From: Eric Dumazet <eric.dumazet@gmail.com>
To: Rui <wirelesser@gmail.com>
Cc: netdev@vger.kernel.org
Subject: Re: multi bpf filter will impact performance?
Date: Tue, 30 Nov 2010 11:01:44 +0100 [thread overview]
Message-ID: <1291111304.2904.20.camel@edumazet-laptop> (raw)
In-Reply-To: <AANLkTikx68M43+vv+Rav_HCJMJnuc15TtuBgmbv2xP=U@mail.gmail.com>
Le mardi 30 novembre 2010 à 17:22 +0800, Rui a écrit :
> step 0:
> launch 4 tcpdump processes,each applied a filter to filter out some
> GTP-U packets. seen with 'tcpdump -d', the bpf code has about 100
> lines.
So each incoming packet has to go through your 4 filters, thats a total
of ~400 bpf instructions. (a bit less in average because of the
conditionnal branches)
next prev parent reply other threads:[~2010-11-30 10:01 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-30 9:22 multi bpf filter will impact performance? Rui
2010-11-30 9:34 ` Eric Dumazet
[not found] ` <AANLkTi=VpmnrXTBNV7McQm6mq9ULT7KTKbM8_hLPoL=2@mail.gmail.com>
[not found] ` <1291127670.2904.96.camel@edumazet-laptop>
2010-12-01 3:48 ` Rui
2010-12-01 4:03 ` Eric Dumazet
2010-12-01 7:45 ` [PATCH net-next-2.6] filter: add SKF_AD_RXHASH and SKF_AD_CPU Eric Dumazet
2010-12-01 8:03 ` Changli Gao
2010-12-06 21:02 ` David Miller
2010-12-03 9:40 ` multi bpf filter will impact performance? Junchang Wang
2010-12-01 7:36 ` Changli Gao
2010-12-01 7:47 ` Eric Dumazet
2010-12-01 7:59 ` Changli Gao
2010-12-01 8:09 ` Eric Dumazet
2010-12-01 8:15 ` Changli Gao
2010-12-01 8:42 ` Eric Dumazet
2010-12-01 17:22 ` Hagen Paul Pfeifer
2010-12-01 18:18 ` David Miller
2010-12-01 18:24 ` David Miller
2010-12-01 18:24 ` Eric Dumazet
2010-12-01 18:44 ` David Miller
2010-12-01 19:48 ` Eric Dumazet
2010-12-01 20:23 ` David Miller
2010-12-01 20:45 ` [PATCH net-next-2.6] filter: add a security check at install time Eric Dumazet
2010-12-02 2:30 ` Changli Gao
2010-12-02 6:46 ` Eric Dumazet
2010-12-02 8:11 ` Changli Gao
2010-12-02 8:53 ` Eric Dumazet
2010-12-02 9:00 ` Eric Dumazet
2010-12-02 9:10 ` Changli Gao
2010-12-02 9:54 ` Eric Dumazet
2010-12-02 10:10 ` Changli Gao
2010-12-02 11:15 ` Eric Dumazet
2010-12-02 11:29 ` Changli Gao
2010-12-02 13:14 ` Eric Dumazet
2010-12-02 10:59 ` Changli Gao
2010-12-06 21:07 ` David Miller
2010-12-03 6:32 ` multi bpf filter will impact performance? Eric Dumazet
2010-12-05 20:53 ` PATCH] filter: fix sk_filter rcu handling Eric Dumazet
2010-12-05 21:08 ` Andi Kleen
2010-12-05 21:28 ` Eric Dumazet
2010-12-06 17:29 ` David Miller
2010-11-30 10:01 ` Eric Dumazet [this message]
2010-11-30 11:17 ` multi bpf filter will impact performance? Eric Dumazet
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