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Understanding user_beancounters: tcpsndbuf [message #27849] Fri, 29 February 2008 09:02 Go to previous message
ittec is currently offline  ittec
Messages: 41
Registered: February 2008
Hi again

Since I modified some values of privvmpages on my Linux OpenVz server with your help, no more problems happens with this parameter.

Today I need to explain to you similar trouble, this time with tcpsndbuf. I read the thread in OpenVz wiki and I did the calculation about tcpsndfbuf formula:

Current user_beancounters values:

barrier -> 5.777.926
limit -> 12.331.526
fail -> 455.979.976

barrier -> 1.600
limit -> 1.600

I think the number of fail is very high. Now with this values Im going to follow the formula that appear in wiki web:

limit - barrier >= 2.5 KB * 1600

12.331.526 - 5.777.926 >= 4.000
6.553.600 >= 4.000

Is right, isn't it? So my first interest is about understand why I have a high number of tcpsndbuf. If I think in formula and I did properly, couldn't happen bad performance on this VE. But the true is the traffic graphics show me bad operation.

Can someone bring me some light here ? Confused

Thanks a lot
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