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Date: Mon, 4 Sep 2006 10:08:27 -0300
From: Marcelo Gardini do Amaral <marcelo@registro.br>
To: Jack Vogel <jfvogel@gmail.com>
Message-ID: <20060904130827.GE12975@registro.br>
References: <E1GIMNJ-0000Dd-QH@cs1.cs.huji.ac.il>
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Cc: Danny Braniss <danny@cs.huji.ac.il>, freebsd-net@freebsd.org,
	freebsd-stable@freebsd.org
Subject: Re: tcp/udp performance
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> >
> >Any help?
> >
> >        danny
> 
> Have discussed this some internally, the best idea I've heard is that
> UDP is not giving us the interrupt rate that TCP would, so we end up
> not cleaning up as often, and thus descriptors might not be as quickly
> available.. Its just speculation at this point.
> 
> Try this: the default is only to have 256 descriptors, try going for the MAX
> which is 4K.
> 


I've made some udp performance tests with FreeBSD 6-STABLE. The
results were poor. I had the best results with 4.11. Does anybody made
some test like that?


-- 
Att.,

Marcelo Gardini
NIC .br