From: Eric Dumazet <eric.dumazet@gmail.com>
To: Deng-Cheng Zhu <dczhu@mips.com>
Cc: Tom Herbert <therbert@google.com>,
davem@davemloft.net, netdev@vger.kernel.org
Subject: Re: [PATCH v2] RPS: Sparse connection optimizations - v2
Date: Mon, 07 May 2012 09:22:20 +0200 [thread overview]
Message-ID: <1336375340.3752.2242.camel@edumazet-glaptop> (raw)
In-Reply-To: <4FA770DA.6000104@mips.com>
On Mon, 2012-05-07 at 14:51 +0800, Deng-Cheng Zhu wrote:
> This is not about arch, it's about system design. Even with IRQ affinity
> working, for single queue NICs, RPS still has its value in this test.
>
Post your numbers when proper affinities are done.
Having several cpus fighting on output path for qdisc/device lock is a
killer. Extra IPI are not worth the pain.
next prev parent reply other threads:[~2012-05-07 7:22 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-03 8:56 [PATCH v2] RPS: Sparse connection optimizations - v2 Deng-Cheng Zhu
2012-05-04 3:22 ` Tom Herbert
2012-05-04 3:39 ` Deng-Cheng Zhu
2012-05-04 4:25 ` Deng-Cheng Zhu
2012-05-04 7:47 ` Eric Dumazet
2012-05-07 6:51 ` Deng-Cheng Zhu
2012-05-07 7:22 ` Eric Dumazet [this message]
2012-05-04 15:31 ` Tom Herbert
2012-05-04 15:47 ` Eric Dumazet
2012-05-04 20:53 ` Eric Dumazet
2012-05-07 6:48 ` Deng-Cheng Zhu
2012-05-07 7:38 ` Eric Dumazet
2012-05-07 8:01 ` Deng-Cheng Zhu
2012-05-07 8:25 ` Eric Dumazet
2012-05-08 6:43 ` Deng-Cheng Zhu
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