topic Re: System Tuning in Operating System - HP-UX

System Tuning

Andrew Crowe_2 — Fri, 09 May 2003 06:54:35 GMT

Hello,

Just a quick question. If someone asked you about system tuning (HP-UX) what would you take this to mean. I only ask because I am pretty much self taught (well mostly from this message board) and I need clarification on what the phrase would emcompass. Any help would be great as I'm out of a job in October and someone has just asked me if I do system tuning as part of my job.

Thanks

Andrew

Re: System Tuning

Rainer von Bongartz — Fri, 09 May 2003 06:59:25 GMT

What about the HP-UX tuning guide at
http://docs.hp.com/cgi-bin/otsearch/getfile?id=/hpux/onlinedocs/os/11.0/tuningwp.html&searchterms=stephen&queryid=20020509-210347

Regards
Rainer

Re: System Tuning

Keely Jackson — Fri, 09 May 2003 07:01:35 GMT

Hi Andrew

My interpretation would be that system tuning is tweaking/setting up the machine to run as efficiently and quickly as possible.

Generally things to look at would be, cpu usage, memory usage, kernel params, disk i/o, network stuff. All the things you probably do already.

Cheers
Keely

Re: System Tuning

Tore_1 — Fri, 09 May 2003 07:08:05 GMT

I think if you are able to check if you have enough memory / swap , correct values on no of filedescriptors etc, + able to find out if youre system is i/o / memory / cpubound + be able to change your system configuration than you can say you do system tuning. Not many people can do more than this, and many can't do this much.

If someone wanted a tuning expert they wouldn't ask the question this way.

Re: System Tuning

Andrew Crowe_2 — Fri, 09 May 2003 07:47:45 GMT

Thanks,

Thats pretty much what I thought and I think its either someone who has just heard the phrase without knowing what it means or are trying to catch me out.

Again thanks for your help

Re: System Tuning

Tim Sanko — Fri, 09 May 2003 11:57:32 GMT

If you use sar,glance, and the other tools, and you know what the tunables are, and have a clue as to what they do, then Yes, you are able to tune the system.

If you haven't looked at the tunables, or only use recommended tuning and never look at performance or ps lists to see running jobs then no you don't do tuning.

Almost anything that you do that can affect the performance of the system fits the description tuning.

Hope this answer helps

Tim