NFS + linux 2.6.6 => slow, driving me nuts

hi, I am trying to setup a FAST nfs setup: millions of little 10-200k files have to be thrown around between 6 servers within their own little 192.168.x 100mbit intranet.

What I did so far:
- upgraded to nfs-utils 1.0.6
- tried options such as 8k buffers, soft, hard, nolock...
- setup DNS and reverse DNS

still NFS is incredibly slow... it takes 10-20 seconds to mount a share, 15 seconds to just write 300k, reads sometimes bail out with input/output errors.

iptables does not show any firewall rules... any ideas what the hell is wrong here?

 

 

 

 

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