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Re: multi bpf filter will impact performance?

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From: David Miller
Subject: Re: multi bpf filter will impact performance?
Date: Wednesday, December 1, 2010 - 11:24 am

From: David Miller <davem@davemloft.net>
Date: Wed, 01 Dec 2010 10:18:09 -0800 (PST)


BTW, the JIT is non-trivial work for us because of non-linear SKBs.
We'd need some kind of helper stub or similar, with a straight line
fast path for the linear case.
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Messages in current thread:
multi bpf filter will impact performance?, Rui, (Tue Nov 30, 2:22 am)
Re: multi bpf filter will impact performance?, Eric Dumazet, (Tue Nov 30, 2:34 am)
Re: multi bpf filter will impact performance?, Eric Dumazet, (Tue Nov 30, 3:01 am)
Re: multi bpf filter will impact performance?, Eric Dumazet, (Tue Nov 30, 4:17 am)
Re: multi bpf filter will impact performance?, Rui, (Tue Nov 30, 8:48 pm)
Re: multi bpf filter will impact performance?, Eric Dumazet, (Tue Nov 30, 9:03 pm)
Re: multi bpf filter will impact performance?, Changli Gao, (Wed Dec 1, 12:36 am)
[PATCH net-next-2.6] filter: add SKF_AD_RXHASH and SKF_AD_CPU, Eric Dumazet, (Wed Dec 1, 12:45 am)
Re: multi bpf filter will impact performance?, Eric Dumazet, (Wed Dec 1, 12:47 am)
Re: multi bpf filter will impact performance?, Changli Gao, (Wed Dec 1, 12:59 am)
Re: [PATCH net-next-2.6] filter: add SKF_AD_RXHASH and SKF ..., Changli Gao, (Wed Dec 1, 1:03 am)
Re: multi bpf filter will impact performance?, Eric Dumazet, (Wed Dec 1, 1:09 am)
Re: multi bpf filter will impact performance?, Changli Gao, (Wed Dec 1, 1:15 am)
Re: multi bpf filter will impact performance?, Eric Dumazet, (Wed Dec 1, 1:42 am)
Re: multi bpf filter will impact performance?, Hagen Paul Pfeifer, (Wed Dec 1, 10:22 am)
Re: multi bpf filter will impact performance?, David Miller, (Wed Dec 1, 11:18 am)
Re: multi bpf filter will impact performance?, David Miller, (Wed Dec 1, 11:24 am)
Re: multi bpf filter will impact performance?, Eric Dumazet, (Wed Dec 1, 11:24 am)
Re: multi bpf filter will impact performance?, David Miller, (Wed Dec 1, 11:44 am)
Re: multi bpf filter will impact performance?, Eric Dumazet, (Wed Dec 1, 12:48 pm)
Re: multi bpf filter will impact performance?, David Miller, (Wed Dec 1, 1:23 pm)
[PATCH net-next-2.6] filter: add a security check at insta ..., Eric Dumazet, (Wed Dec 1, 1:45 pm)
Re: [PATCH net-next-2.6] filter: add a security check at i ..., Changli Gao, (Wed Dec 1, 7:30 pm)
Re: [PATCH net-next-2.6] filter: add a security check at i ..., Eric Dumazet, (Wed Dec 1, 11:46 pm)
Re: [PATCH net-next-2.6] filter: add a security check at i ..., Changli Gao, (Thu Dec 2, 1:11 am)
Re: [PATCH net-next-2.6] filter: add a security check at i ..., Eric Dumazet, (Thu Dec 2, 1:53 am)
Re: [PATCH net-next-2.6] filter: add a security check at i ..., Eric Dumazet, (Thu Dec 2, 2:00 am)
Re: [PATCH net-next-2.6] filter: add a security check at i ..., Changli Gao, (Thu Dec 2, 2:10 am)
Re: [PATCH net-next-2.6] filter: add a security check at i ..., Eric Dumazet, (Thu Dec 2, 2:54 am)
Re: [PATCH net-next-2.6] filter: add a security check at i ..., Changli Gao, (Thu Dec 2, 3:10 am)
Re: [PATCH net-next-2.6] filter: add a security check at i ..., Changli Gao, (Thu Dec 2, 3:59 am)
Re: [PATCH net-next-2.6] filter: add a security check at i ..., Eric Dumazet, (Thu Dec 2, 4:15 am)
Re: [PATCH net-next-2.6] filter: add a security check at i ..., Changli Gao, (Thu Dec 2, 4:29 am)
Re: [PATCH net-next-2.6] filter: add a security check at i ..., Eric Dumazet, (Thu Dec 2, 6:14 am)
Re: multi bpf filter will impact performance?, Eric Dumazet, (Thu Dec 2, 11:32 pm)
Re: multi bpf filter will impact performance?, Junchang Wang, (Fri Dec 3, 2:40 am)
PATCH] filter: fix sk_filter rcu handling, Eric Dumazet, (Sun Dec 5, 1:53 pm)
Re: [stable] PATCH] filter: fix sk_filter rcu handling, Andi Kleen, (Sun Dec 5, 2:08 pm)
Re: [stable] PATCH] filter: fix sk_filter rcu handling, Eric Dumazet, (Sun Dec 5, 2:28 pm)
Re: PATCH] filter: fix sk_filter rcu handling, David Miller, (Mon Dec 6, 10:29 am)
Re: [PATCH net-next-2.6] filter: add SKF_AD_RXHASH and SKF ..., David Miller, (Mon Dec 6, 2:02 pm)
Re: [PATCH net-next-2.6] filter: add a security check at i ..., David Miller, (Mon Dec 6, 2:07 pm)