linux-kernel - RE: [PATCH] sch_red: fix weighted average calculation

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Message-ID: <1347628396.26523.6.camel@edumazet-glaptop>
Date:	Fri, 14 Sep 2012 15:13:16 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	"Dowdal, John" <jdowdal@...com>
Cc:	"Chemparathy, Cyril" <cyril@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"davem@...emloft.net" <davem@...emloft.net>,
	"david.ward@...mit.edu" <david.ward@...mit.edu>,
	"paul.gortmaker@...driver.com" <paul.gortmaker@...driver.com>
Subject: RE: [PATCH] sch_red: fix weighted average calculation

On Fri, 2012-09-14 at 13:01 +0000, Dowdal, John wrote:
> Eric, thank you for reviewing the code.  I now see the problem with
> the patch since backlog is an integer and qavg is a fixed point number
> at logW.  
> 
> We are considering another patch to update the comments to this code
> (with the actual C code change reverted) to stop the FPP by showing
> the derivation of the equation in the comments.  Does this sound good?

This would be good, please do so.

Thanks


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