[OT] tcpdump overhead

2008-09-09 Thread Mario Lobo
Hello; I am doing a final paper for my post-graduate studies. The paper is about QOS on a corporate environment. One of the issues involved in the network measurements I am going to make is how much overhead tcpdump will have on them (if any). It seems to me that this overhead

Re: [OT] tcpdump overhead

2008-09-09 Thread Wojciech Puchar
make is how much overhead tcpdump will have on them (if any). It seems to me that this overhead can be disregarded as influential but, if depends how kmuch packets are actually gathered. if you tcpdump everything from loaded gigabit link it won't be small. you will have to use at least

[OT?] tcpdump overhead

2008-03-10 Thread Mario Lobo
Hi there; Forgive this possible OT (and lame) question. 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

Re: [OT?] tcpdump overhead

2008-03-10 Thread Wojciech Puchar
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

Re: [OT?] tcpdump overhead

2008-03-10 Thread Mario Lobo
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