netdev - Re: [PATCH] rps: make distributing packets fairly among all the online CPUs default

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Message-ID: <1269329250.3043.19.camel@edumazet-laptop>
Date:	Tue, 23 Mar 2010 08:27:30 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	xiaosuo@...il.com
Cc:	"David S. Miller" <davem@...emloft.net>,
	Tom Herbert <therbert@...gle.com>, netdev@...r.kernel.org
Subject: Re: [PATCH] rps: make distributing packets fairly among all the
 online CPUs default

Le mardi 23 mars 2010 à 14:24 +0800, Changli Gao a écrit :
> make distributing packets fairly among all the online CPUs default.
> 
> Make distributing packets fairly among all the online CPUs default, then
> users don't need any explicit configuration to get the benefit of RPS.
> 

Some people want to dedicate a cpu to network interrupts, cache hits
only, to get low latencies.
RPS is not a win for all workloads.

I think we should not change default without a knob.

Didnt we discussed all this during last months ?


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