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Date: Sun, 26 Mar 2006 19:51:45 -0800
From: "Jin Guojun [VFFS]" <g_jin@lbl.gov>
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To: OxY <oxy@field.hu>
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Cc: Lucas Holt <luke@foolishgames.com>,
	FreeBSD Mailing Lists <freebsd-performance@freebsd.org>,
	Arne Woerner <arne_woerner@yahoo.com>
Subject: Re: packet drop with intel gigabit / marwell gigabit
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OxY wrote:

> what kind of details should i attach? to analyze the problem?

Assume that you have process A to cause process B dropping packets:

Step (1):
Run B only -- what is the maximum through without packet drop?
                   what is the CPU utilization?
                   what type of traffic (protocol -- TCP, UDP, etc.) 
does B use?
                   does B have other I/O? If so, how much is the I/O 
bandwidth used?

Step (2):
reRun B and involving A gradually (increasing A's wieght) till B drops 
packets.
    provide all above statistics for A and B at this point (where drop 
starts).

One thing I missed in your original post what protocol drops packet -- 
TCP or UDP?

    -Jin