low performance and high cpu load while accessing virtualized network share

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Hi,

I found a having a bad performance while accessing a networkshare on my windows 2008 server that is located on ESXI 4.

Analysing this I found that there is a 5 to 1 difference in accesstime when I'm trying to access by ip/Foldername versus E:/foldername while being on the host.
Also in the in the ip/foldername case there is a much higher cpu load.

I tried to ask google the right question, but got no good answer until now.

Can somebody give me a hint?

Posted 1-Feb-12 20:31pm

TheSchmidt (Germany)

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E.F. Nijboer · Answer 1 · 2012-02-06T02:03:00

Solution 1

It seems that TCP offload is the problem and should be disabled for windows server 2008. Check the link for more info:
http://www.appliedtrust.com/comment/2091[^]

Good luck!

Posted 6-Feb-12 2:03am

E.F. Nijboer

v2

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Espen Harlinn 9-Feb-12 9:09am

That might be it :)