----- Original Message -----

> Are you sure this is a NFS problem? Are you using LDAP for user
> lookups? With that many directories, I can see there being slowness
> in having to translate those UIDs/GIDs. This would definitely result
> in some of the delays you are seeing.

I have looked at the traffic from the NFS clients to the LDAP servers and there 
is not 
much traffic when a listing is performed. The directories and files in there 
are mostly 
owned by one UID. 

> Also, have you tried tuning the default mount options on the CentOS
> client? The default rsize and wsize values are rather small for
> servers on a gigabit LAN. Increasing them will give you
> substantially better performance. Depending on your network, you may
> have slightly better performance with UDP as well.

I will look at these two. 

-- 

patrick 
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