topic Re: system run slow in Operating System - HP-UX

system run slow

O'lnes — Thu, 01 Aug 2002 00:24:15 GMT

Our system run slowly, but i can't find ( top )any dead job in the system, how can I check what problem in the system ? Thanks.

Re: system run slow

A. Clay Stephenson — Thu, 01 Aug 2002 00:44:37 GMT

So far, you've told us that the car is running very slowly but there are no dead bodies in the trunk.

If you post the entire 1st page of top's output that might prove useful; some sar outputs could help; swapinfo; bdf, kmtune (or sysdef) output. A ps -ef could help as well. By far the best tool to use to find your problem is Glance.

It would help to know a little bit about your system as well? Hardware, memory, applications, OS versions AND has the system just started running poorly or has it always been like this.

The more data you provide, the better the help you are likely to receive.

Re: system run slow

Michael Tully — Thu, 01 Aug 2002 01:42:56 GMT

I wonder if the name of the server is "Hearse" ?

Re: system run slow

Sajid_1 — Thu, 01 Aug 2002 02:41:34 GMT

The first thing I would do is to check the system with GlancePlus:
# gpm

This will list you all processes running, resource usage etc. Determine which option will solve the problem from the outputs. You can also try sar:
# sar 1 10
# man sar

Re: system run slow

Trond Haugen — Thu, 01 Aug 2002 05:54:52 GMT

Bad performance can be caused by one or several bottlenecks (memory, cpu, disk network, kenel config, application). One question to ask can be what was done to the system prior to the problems starting? Another important question is what kind of performance problems are reported (application only, certain commands/taske, HP-UX commands, etc.)? Then you can start checking with the tools already mentioned. And you should know what values they give on a "normal" system.

Regards,
Trond

Re: system run slow

Fragon — Thu, 01 Aug 2002 06:42:10 GMT

First I think you must check the highest CPU% usage process from top!
Is your system can't meet the requirment of some applications?(For example, CPU/memory ) If no problem,please use bdf to see if the free diskspace is enough. Other tools you can use: sar,iostat,vmstat,swapinto etc. You can use these free tools or use GlancePlus to check where the bottle-neck is!

-Gerald-

Re: system run slow

Zeev Schultz — Thu, 01 Aug 2002 06:56:33 GMT