RHELv4 and v5 - So slow as to be unusable.

[Peter Skensved]

> 
> > "top" says that nothing is going on although the load average is 3+.
> > "sar" also says that nothing is going on.
> 


   An unresponsive DNS server would slow NFS to a crawl. If that is the case
you should probably put the relevant IP addreses in /etc/hosts . 

 Every time you type a command the shell searches all paths to find the
right executable. So it may have to wait for DNS and NFS. The way to
check whether this is happening or not is to type a command, time the response
and then type the same command using the full path. If there is a huge difference
in response time you're having an NFS problem.

                                                      peter


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Peter Skensved                          Email : peter at nospam dot SNO dot Phy at QueensU dot CA
Dept. of Physics,
Queen's University,
Kingston, Ontario,
Canada