From: Eric Dumazet <eric.dumazet@gmail.com>
To: Changli Gao <xiaosuo@gmail.com>
Cc: Stephen Hemminger <shemminger@vyatta.com>,
Jarek Poplawski <jarkao2@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Patrick McHardy <kaber@trash.net>,
Tom Herbert <therbert@google.com>,
netdev@vger.kernel.org
Subject: Re: [PATCH] ifb: add multi-queue support
Date: Sat, 14 Nov 2009 13:53:04 +0100 [thread overview]
Message-ID: <4AFEA830.3000101@gmail.com> (raw)
In-Reply-To: <412e6f7f0911131542w1029893cmd07599660b810ed5@mail.gmail.com>
Changli Gao a écrit :
> Yea, the overhead of SoftIRQ is less than kernel threads, and I'll try
> to find a way to solve both flexibility and efficiency. Maybe I need
> some real NIC drivers as examples. Is there a standard API to bind RQs
> of NIC to CPUs, such as ioctl or setsockopt?
Thats a good question... napi is bound to a cpu, and you'll need
things that were done by Tom Herbert in its RPS patch, to
be able to deleguate work to remote cpus napi contexts.
But if we consider RPS being close to be committed, shouldnt
IFB use its, in order to not duplicate changes ?
Or, if you prefer, once RPS is in, we dont need to change IFB, since
RPS will already split the load to multiple cpus before entering IFB.
next prev parent reply other threads:[~2009-11-14 12:53 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-11 9:51 [PATCH] ifb: add multi-queue support Changli Gao
2009-11-11 9:56 ` Changli Gao
2009-11-11 10:30 ` Eric Dumazet
2009-11-11 10:57 ` Changli Gao
2009-11-11 15:59 ` Patrick McHardy
2009-11-12 3:12 ` Changli Gao
2009-11-12 8:52 ` Jarek Poplawski
2009-11-12 9:32 ` Changli Gao
2009-11-12 15:10 ` Patrick McHardy
2009-11-13 1:28 ` Changli Gao
2009-11-12 9:44 ` Changli Gao
2009-11-12 9:48 ` Changli Gao
2009-11-12 15:11 ` Patrick McHardy
2009-11-13 1:32 ` Changli Gao
2009-11-13 7:18 ` Patrick McHardy
2009-11-12 12:48 ` Eric Dumazet
2009-11-13 1:26 ` Changli Gao
2009-11-13 5:56 ` Eric Dumazet
2009-11-13 6:16 ` Changli Gao
2009-11-13 7:45 ` Jarek Poplawski
2009-11-13 8:54 ` Changli Gao
2009-11-13 9:18 ` Jarek Poplawski
2009-11-13 9:38 ` Changli Gao
2009-11-13 9:57 ` Jarek Poplawski
2009-11-13 11:25 ` Changli Gao
2009-11-13 12:32 ` Jarek Poplawski
2009-11-13 13:10 ` Eric Dumazet
2009-11-13 16:15 ` Stephen Hemminger
2009-11-13 23:28 ` Changli Gao
2009-11-13 23:32 ` Stephen Hemminger
2009-11-13 23:42 ` Changli Gao
2009-11-14 12:53 ` Eric Dumazet [this message]
2009-11-14 13:30 ` Changli Gao
2009-11-13 13:55 ` Eric Dumazet
2009-11-13 4:37 ` Changli Gao
2009-11-16 16:39 ` Stephen Hemminger
2009-11-17 3:10 ` David Miller
2009-11-17 5:38 ` Changli Gao
2009-11-17 6:02 ` Stephen Hemminger
-- strict thread matches above, loose matches on Subject: below --
2009-11-16 7:31 Changli Gao
2009-11-16 8:19 ` Eric Dumazet
2009-11-16 8:43 ` Changli Gao
2009-11-13 4:42 Changli Gao
2009-11-13 4:46 ` Changli Gao
2009-11-10 8:30 Changli Gao
2009-11-10 9:07 ` Eric Dumazet
2009-11-10 9:43 ` Changli Gao
2009-11-10 10:57 ` Eric Dumazet
2009-11-10 11:14 ` Changli Gao
2009-11-10 11:41 ` Patrick McHardy
2009-11-10 12:14 ` Changli Gao
2009-11-10 12:19 ` Patrick McHardy
2009-11-10 12:37 ` Changli Gao
2009-11-10 12:45 ` Patrick McHardy
2009-11-10 13:06 ` Changli Gao
2009-11-10 13:34 ` Eric Dumazet
2009-11-10 13:49 ` Changli Gao
2009-11-10 16:45 ` Stephen Hemminger
2009-11-11 6:30 ` Changli Gao
2009-11-10 10:29 ` Patrick McHardy
2009-11-10 10:48 ` Changli Gao
2009-11-10 10:55 ` Eric Dumazet
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