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Date: Sun, 30 Sep 2007 14:27:15 -0700 (PDT)
From: Jeff Roberson <jroberson@chesapeake.net>
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To: Alexander Motin <mav@freebsd.org>
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Cc: Alfred Perlstein <alfred@freebsd.org>, freebsd-arch@freebsd.org
Subject: Re: Kernel thread stack usage
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On Sun, 30 Sep 2007, Alexander Motin wrote:

> Alfred Perlstein ?????:
>> Not that I know of, but one could defer to queueing once the chain
>> gets to a certain length.
>
> It will not be accurate as different nodes have different stack usage and 
> also stack partially used (part may be significant) before packet entered 
> netgraph.

Does it really need to be that precise?  If you queue every 10 or 20 deep 
the queueing cost should be substantially amortized and it sounds like 
this is not a common condition anyway or the stack would already be 
overflowing with some workloads.

Jeff

>
> -- 
> Alexander Motin
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