From: Lenny [mailto:five2one.le...@gmail.com] 
        Sent: July 29, 2009 3:38 PM
        

        Evgeny Yurchenko wrote:
        

                        
                        
                        I would try to swap cables and interfaces in
config and see errors. Do they go to em0? stay on em1? It's pointless
trying to fix tcp/ip without eliminating problem on media.
                         
                        Eugene. 

        That's all understandable when speaking of errors and packet
loss, but would it really cause the CPU hit 100% at 50kpps?
        both em0 and em1?
        
        By the way, it worked for 3 weeks with regular load (about
10kpps) and the CPU was around 20%(each) and there were no errors.
        
        Lenny. 
         
        10kpps - 20% CPU
        50kpps - 100% CPU
        looks like we have some logic here. I've looked at my graphs -
there is no relation between cpu load and pps. Do you have this
relation? Not talking about your extreme case 50kpps, generally - when
load fluctuates let's say 10 to 15kpps, does you cpu load also goes
higher/lower?
         
        I experienced 100% CPU only in two cases:
        1) Multicast went from LAN to WAN and caused storm (in carped
setup)
        2) There is known bug with slbd. 
         
        Eugene 

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