Date: Mon, 10 Mar 2008 14:33:17 -0300 From: Mario Lobo <mario.lobo@ipad.com.br> To: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> Cc: freebsd-questions@freebsd.org Subject: Re: [OT?] tcpdump overhead Message-ID: <200803101433.18559.mario.lobo@ipad.com.br> In-Reply-To: <20080310164418.D5681@wojtek.tensor.gdynia.pl> References: <200803101001.58362.mario.lobo@ipad.com.br> <20080310164418.D5681@wojtek.tensor.gdynia.pl>
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On Monday 10 March 2008, you wrote: > > I am writing a final paper for a PG course and I need to take precise > > measurements on network performance. I gonna be doing lots of packet > > dumps and I would like to know you guys' opinion on how much of tcpdump > > overhead (if meaningful for these measurements) I should take into > > account. > > > > If there are any readings on the subject you could point me to... > > no idea but small for sure. it would rather cause tcpdump to not catch all > packets that network performance drop. Thanks for the reply Wojciech. =46orgive my english but I couldn't quite get what you meant by: "it would rather cause tcpdump to not catch all packets that network=20 performance drop." Could you rephrase that for me please ? Thanks =2D-=20 Mario Lobo Seguran=E7a de Redes - Desenvolvimento e An=E1lise IPAD - Instituto de Pesquisa e Apoio ao Desenvolvimento Tecnol=F3gico e=20 Cient=EDfico
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