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Re: [PATCH net-next-2.6] rps: shortcut net_rps_action()

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From: Changli Gao
Subject: Re: [PATCH net-next-2.6] rps: shortcut net_rps_action()
Date: Monday, April 19, 2010 - 5:32 pm

On Tue, Apr 20, 2010 at 7:56 AM, Changli Gao <xiaosuo@gmail.com> wrote:

Oh, I read the code again and got the answer. After the IPI is sent,
this softnet will be queued by the other CPUs. We prefetch the pointer
rps_ipi_next to avoid this race condition.

Sorry for noise :)


-- 
Regards，
Changli Gao(xiaosuo@gmail.com)
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Messages in current thread:
rps: question, jamal, (Sun Feb 7, 11:42 am)
Re: rps: question, Tom Herbert, (Sun Feb 7, 10:58 pm)
Re: rps: question, jamal, (Mon Feb 8, 8:09 am)
rps perfomance WAS(Re: rps: question, jamal, (Wed Apr 14, 4:53 am)
Re: rps perfomance WAS(Re: rps: question, Tom Herbert, (Wed Apr 14, 10:31 am)
Re: rps perfomance WAS(Re: rps: question, Eric Dumazet, (Wed Apr 14, 11:04 am)
Re: rps perfomance WAS(Re: rps: question, jamal, (Wed Apr 14, 11:53 am)
Re: rps perfomance WAS(Re: rps: question, Stephen Hemminger, (Wed Apr 14, 11:53 am)
Re: rps perfomance WAS(Re: rps: question, Stephen Hemminger, (Wed Apr 14, 12:44 pm)
Re: rps perfomance WAS(Re: rps: question, Eric Dumazet, (Wed Apr 14, 12:58 pm)
Re: rps perfomance WAS(Re: rps: question, jamal, (Wed Apr 14, 1:22 pm)
Re: rps perfomance WAS(Re: rps: question, Eric Dumazet, (Wed Apr 14, 1:27 pm)
Re: rps perfomance WAS(Re: rps: question, Andi Kleen, (Wed Apr 14, 1:34 pm)
Re: rps perfomance WAS(Re: rps: question, jamal, (Wed Apr 14, 1:38 pm)
Re: rps perfomance WAS(Re: rps: question, Tom Herbert, (Wed Apr 14, 1:45 pm)
Re: rps perfomance WAS(Re: rps: question, Eric Dumazet, (Wed Apr 14, 1:57 pm)
Re: rps perfomance WAS(Re: rps: question, Changli Gao, (Wed Apr 14, 3:51 pm)
Re: rps perfomance WAS(Re: rps: question, Stephen Hemminger, (Wed Apr 14, 4:02 pm)
Re: rps perfomance WAS(Re: rps: question, Eric Dumazet, (Wed Apr 14, 7:40 pm)
Re: rps perfomance WAS(Re: rps: question, Changli Gao, (Wed Apr 14, 7:50 pm)
Re: rps perfomance WAS(Re: rps: question, David Miller, (Thu Apr 15, 1:42 am)
Re: rps perfomance WAS(Re: rps: question, David Miller, (Thu Apr 15, 1:48 am)
Re: rps perfomance WAS(Re: rps: question, David Miller, (Thu Apr 15, 1:50 am)
Re: rps perfomance WAS(Re: rps: question, David Miller, (Thu Apr 15, 1:51 am)
Re: rps perfomance WAS(Re: rps: question, David Miller, (Thu Apr 15, 1:51 am)
Re: rps perfomance WAS(Re: rps: question, David Miller, (Thu Apr 15, 1:57 am)
Re: rps perfomance WAS(Re: rps: question, jamal, (Thu Apr 15, 4:55 am)
Re: rps perfomance WAS(Re: rps: question, jamal, (Thu Apr 15, 5:10 am)
Re: rps perfomance WAS(Re: rps: question, Changli Gao, (Thu Apr 15, 5:32 am)
Re: rps perfomance WAS(Re: rps: question, jamal, (Thu Apr 15, 5:50 am)
Re: rps perfomance WAS(Re: rps: question, Rick Jones, (Thu Apr 15, 9:41 am)
Re: rps perfomance WAS(Re: rps: question, jamal, (Thu Apr 15, 1:16 pm)
Re: rps perfomance WAS(Re: rps: question, Rick Jones, (Thu Apr 15, 1:25 pm)
Re: rps perfomance WAS(Re: rps: question, Changli Gao, (Thu Apr 15, 4:51 pm)
Re: rps perfomance WAS(Re: rps: question, Changli Gao, (Thu Apr 15, 4:56 pm)
Re: rps perfomance WAS(Re: rps: question, Eric Dumazet, (Thu Apr 15, 10:18 pm)
Re: rps perfomance WAS(Re: rps: question, Changli Gao, (Thu Apr 15, 11:02 pm)
Re: rps perfomance WAS(Re: rps: question, Tom Herbert, (Thu Apr 15, 11:28 pm)
Re: rps perfomance WAS(Re: rps: question, Eric Dumazet, (Thu Apr 15, 11:32 pm)
Re: rps perfomance WAS(Re: rps: question, Andi Kleen, (Fri Apr 16, 12:15 am)
Re: rps perfomance WAS(Re: rps: question, jamal, (Fri Apr 16, 6:21 am)
Re: rps perfomance WAS(Re: rps: question, jamal, (Fri Apr 16, 6:27 am)
Re: rps perfomance WAS(Re: rps: question, Changli Gao, (Fri Apr 16, 6:34 am)
Re: rps perfomance WAS(Re: rps: question, Andi Kleen, (Fri Apr 16, 6:37 am)
Re: rps perfomance WAS(Re: rps: question, jamal, (Fri Apr 16, 6:42 am)
Re: rps perfomance WAS(Re: rps: question, jamal, (Fri Apr 16, 6:49 am)
Re: rps perfomance WAS(Re: rps: question, jamal, (Fri Apr 16, 6:58 am)
Re: rps perfomance WAS(Re: rps: question, Changli Gao, (Fri Apr 16, 7:10 am)
Re: rps perfomance WAS(Re: rps: question, jamal, (Fri Apr 16, 7:43 am)
Re: rps perfomance WAS(Re: rps: question, Changli Gao, (Fri Apr 16, 7:58 am)
Re: rps perfomance WAS(Re: rps: question, Tom Herbert, (Fri Apr 16, 8:57 am)
Re: rps perfomance WAS(Re: rps: question, Eric Dumazet, (Sat Apr 17, 12:35 am)
Re: rps perfomance WAS(Re: rps: question, Tom Herbert, (Sat Apr 17, 1:43 am)
Re: rps perfomance WAS(Re: rps: question, Eric Dumazet, (Sat Apr 17, 2:23 am)
[PATCH net-next-2.6] net: remove time limit in process_bac ..., Eric Dumazet, (Sat Apr 17, 7:17 am)
Re: rps perfomance WAS(Re: rps: question, Eric Dumazet, (Sat Apr 17, 7:27 am)
Re: rps perfomance WAS(Re: rps: question, Tom Herbert, (Sat Apr 17, 10:26 am)
Re: rps perfomance WAS(Re: rps: question, jamal, (Sat Apr 17, 10:31 am)
Re: [PATCH net-next-2.6] net: remove time limit in process ..., David Miller, (Sun Apr 18, 2:36 am)
Re: rps perfomance WAS(Re: rps: question, Eric Dumazet, (Sun Apr 18, 2:39 am)
Re: rps perfomance WAS(Re: rps: question, Eric Dumazet, (Sun Apr 18, 4:34 am)
Re: rps perfomance WAS(Re: rps: question, jamal, (Sun Apr 18, 7:09 pm)
[RFC] rps: shortcut net_rps_action(), Eric Dumazet, (Mon Apr 19, 2:37 am)
Re: [RFC] rps: shortcut net_rps_action(), Changli Gao, (Mon Apr 19, 2:48 am)
Re: [RFC] rps: shortcut net_rps_action(), Eric Dumazet, (Mon Apr 19, 5:14 am)
Re: [RFC] rps: shortcut net_rps_action(), Changli Gao, (Mon Apr 19, 5:28 am)
Re: rps perfomance WAS(Re: rps: question, jamal, (Mon Apr 19, 5:48 am)
Re: [RFC] rps: shortcut net_rps_action(), Eric Dumazet, (Mon Apr 19, 6:27 am)
Re: [RFC] rps: shortcut net_rps_action(), Eric Dumazet, (Mon Apr 19, 7:22 am)
[PATCH net-next-2.6] rps: shortcut net_rps_action(), Eric Dumazet, (Mon Apr 19, 8:07 am)
Re: [PATCH net-next-2.6] rps: shortcut net_rps_action(), Tom Herbert, (Mon Apr 19, 9:02 am)
Re: [PATCH net-next-2.6] rps: shortcut net_rps_action(), David Miller, (Mon Apr 19, 1:21 pm)
Re: [PATCH net-next-2.6] rps: shortcut net_rps_action(), Changli Gao, (Mon Apr 19, 4:56 pm)
Re: [PATCH net-next-2.6] rps: shortcut net_rps_action(), Changli Gao, (Mon Apr 19, 5:32 pm)
Re: [PATCH net-next-2.6] rps: shortcut net_rps_action(), Eric Dumazet, (Mon Apr 19, 10:55 pm)
[PATCH net-next-2.6] rps: cleanups, Eric Dumazet, (Tue Apr 20, 12:17 am)
Re: [PATCH net-next-2.6] rps: cleanups, David Miller, (Tue Apr 20, 1:18 am)
Re: rps perfomance WAS(Re: rps: question, jamal, (Tue Apr 20, 5:02 am)
Re: rps perfomance WAS(Re: rps: question, Eric Dumazet, (Tue Apr 20, 6:13 am)
Re: rps perfomance WAS(Re: rps: question, Eric Dumazet, (Wed Apr 21, 12:01 pm)
Re: rps perfomance WAS(Re: rps: question, Rick Jones, (Wed Apr 21, 2:53 pm)
Re: rps perfomance WAS(Re: rps: question, Changli Gao, (Wed Apr 21, 6:27 pm)
Re: rps perfomance WAS(Re: rps: question, jamal, (Thu Apr 22, 5:12 am)
Re: rps perfomance WAS(Re: rps: question, Changli Gao, (Sat Apr 24, 7:31 pm)
Re: rps perfomance WAS(Re: rps: question, jamal, (Mon Apr 26, 4:35 am)
Re: rps perfomance WAS(Re: rps: question, Changli Gao, (Mon Apr 26, 6:35 am)