netdev - Re: [PATCH] net: rps: add the shortcut for one rps

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Date:	Sat, 4 Sep 2010 20:18:20 +0800
From:	Changli Gao <xiaosuo@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH] net: rps: add the shortcut for one rps_cpus

On Sat, Sep 4, 2010 at 7:01 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> You are 'optimizing' a very unusual case and slow down 99% of normal
> uses.
>
> Normal way to handle this, is to use irq affinity and deliver interrupts
> directly to the target cpu.
>
>

Some pseudo network devices may share the same interrupt, such as vlan
network devices. In this case, setting the IRQ affinity can't work.

-- 
Regards,
Changli Gao(xiaosuo@...il.com)
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