netdev - Re: [PATCH iproute2] Re: HTB accuracy for high speed

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Date:	Wed, 03 Jun 2009 10:29:58 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Jarek Poplawski <jarkao2@...il.com>
CC:	Antonio Almeida <vexwek@...il.com>,
	Stephen Hemminger <shemminger@...tta.com>,
	netdev@...r.kernel.org, davem@...emloft.net, devik@....cz,
	Eric Dumazet <dada1@...mosbay.com>,
	Vladimir Ivashchenko <hazard@...ncoudi.com>
Subject: Re: [PATCH iproute2] Re: HTB accuracy for high speed

Jarek Poplawski wrote:
> On Wed, Jun 03, 2009 at 09:53:11AM +0200, Patrick McHardy wrote:
> ...
>> Yes, it would work perfectly fine with usecs, which is actually (and
>> unfortunately) the unit it uses in its ABI. But I think its better
>> to convert the values once during initialization, instead of again
>> and again when scheduling the watchdog. The necessary changes are
>> really trivial, all you need to do when changing the scaling factors
>> is to increase SM_MASK and decrease ISM_MASK accordingly.
> 
> Right! (On the other hand we could consider a separate watchdog too...)

We could :) But I don't see any benefit doing that, especially given
that eventually everything should be using ns resolution anyways.
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