🚀 go-pugleaf

We are having some serious performance problems with our sun 4/690m that is
used as a data server for ~130 workstations and 300 users.  I am what I
would call a novice administrator and have lots and lots of questions about
some of the performance issues:

configuration:

	4/690m
	5 Sun Network Coprocessors
	12 1.2Gb IPI drives
	3 IPI Panther disk controllers 
	2 ethernet connections
	128 MBytes memory
	500 MByte swap partition

1)  using vmstat, the pi rate goes from 0 to 524 (pagesize is 4096 bytes).
  This seems very high to me.  What types of numbers should I expect to see
 and do I need to add more physical memory?

2)  update (the program that updates the super block) seems to be getting a LOT
of time.  For example, the machine has been up 2 1/2 days and has accumulated
61 minutes, 40 seconds of update time.  I didn't think that was so high until
I logged in to another system that had been up 35 days and had accumulated only
160 minutes 33 seconds in that amount of time.

3)  using top, a program to display top cpu processes, ypserv will some times
be running as high as 70%.  The runtime displayed in ps is about 50 minutes,
same uptime.

4)  when all is added up, our nfs service suffers terribly.

Any ideas, comments, suggestions, flames are appreciated (okay flames may not
be appreciated).  I was handed down this system.  I don't profess to know 
everything about this system...that's why I'm asking.

Thanks in advance,
Cathie Hartman


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Cathie Hartman       
CFCCN, Local User Support Analyst, Cray Research, Inc. 
(715) 726-8387  email - laser@romulus.cray.com