packet drop with intel gigabit / marwell gigabit

OxY oxy at
Mon Mar 27 16:45:18 UTC 2006

i decided to give up, can't get rid of packet loss...
thank you all for your help!

----- Original Message ----- 
From: "Jin Guojun [VFFS]" <g_jin at>
To: "OxY" <oxy at>
Cc: "Lucas Holt" <luke at>; "FreeBSD Mailing Lists" 
<freebsd-performance at>; "Arne Woerner" <arne_woerner at>
Sent: Monday, March 27, 2006 5:51 AM
Subject: Re: packet drop with intel gigabit / marwell gigabit

> 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 

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