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Date:      Tue, 19 Dec 2006 13:41:56 -0800 (PST)
From:      Looza <elias_nogueira@hotmail.com>
To:        freebsd-ipfw@freebsd.org
Subject:   Re: problem simulating a LFN
Message-ID:  <7955491.post@talk.nabble.com>
In-Reply-To: <cb5206420612172037j178c3389l8f6429928ef30c2b@mail.gmail.com>
References:  <7922408.post@talk.nabble.com> <cb5206420612172037j178c3389l8f6429928ef30c2b@mail.gmail.com>

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About the offloading, it might be just that but I not sure and I don't have
time to explore this situation. I'm using 2 SMC9452TX and 1 SMC9452TX-1.

The delay issue was because of the TCP buffers, I had configured them but
the changes weren't permanent.


infofarmer wrote:
> 
> On 12/18/06, Looza <elias_nogueira@hotmail.com> wrote:
>> My first question is if anyone knows off some way to
>> get the processing out of the CPU so that I can achieve
>> gigabit speeds without ?
> 
> Like you already noticed, better NICs help. BTW, which
> ones do you have? See drivers' manpages for info about
> hardware offloading. Also, have a look at polling(4), it
> might (or might not) help.
> 
>> My second question is  if there is a way of setting the
>> ipfw delay option so that it does not alter the throughput?
> 
> You'll have to read ipfw(8) for that. In short, you might
> have to increase the queue size so that it can hold 100ms
> worth of traffic.
> _______________________________________________
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> 
> 

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