netdev - Re: [PATCH 0/2] netem: trace enhancement

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Date:	Tue, 04 Dec 2007 10:07:31 -0800
From:	Ben Greear <greearb@...delatech.com>
To:	Ariane Keller <ariane.keller@....ee.ethz.ch>
CC:	Patrick McHardy <kaber@...sh.net>,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	netdev@...r.kernel.org, herbert@...dor.apana.org.au,
	Rainer Baumann <baumann@....ee.ethz.ch>
Subject: Re: [PATCH 0/2] netem: trace enhancement

Ariane Keller wrote:
> I thought about that as well, but in my opinion this does not help much.
> It's the same as before: in average every 10ms a new buffer needs to 
> be filled.
But, you can fill 50 or 100 at a time, so if user-space is delayed for a 
few ms, the
kernel still has plenty of buffers to work with until user-space gets 
another chance.
I'm not worried about average thoughput of user-space to kernel, just random
short-term starvation.

Thanks,
Ben

-- 
Ben Greear <greearb@...delatech.com> 
Candela Technologies Inc  http://www.candelatech.com


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