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тАО06-29-2002 01:45 PM
тАО06-29-2002 01:45 PM
Solved! Go to Solution.
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тАО06-29-2002 01:58 PM
тАО06-29-2002 01:58 PM
SolutionThere is no real harm on your CPU usage being 100%. Processes will take as much is available. You have issues when your users start complaining about slow performance.
What does your load look like ?
See this from 'top' command
Have a look at
sar -u 2 10
You will be able to see at a percentage level who is using the most, either user or system. If you have a healthy balance between the two then theres not much to worry about.
You can also see processes via pid using glance
option c - CPU report
I have attached a doc for you to look at which will go through other areas regarding performance and tuning to give you a better understanding
Hope this helps
Steve
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тАО06-29-2002 02:02 PM
тАО06-29-2002 02:02 PM
Re: CPU usage reaches 100%
Is it just the 1 process that is causing the CPU to run at 100% - If so what is this ?
Steve
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тАО06-29-2002 02:03 PM
тАО06-29-2002 02:03 PM
Re: CPU usage reaches 100%
- add an extra cpu
- replace cpu with more powerful one
- kill heavy processes
- rewrite heavy programs
- ...
Check with top and/or glance for heavy processes,
check for hanging processes, ....
Tuning and performance analysis requires a certain amount of background information of the system. Maybe the current system load is quite normal.
good luck,
Thierry.
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тАО06-29-2002 02:12 PM
тАО06-29-2002 02:12 PM
Re: CPU usage reaches 100%
are on internal diskes ...It wasn't very high yersterday..but today it reaches at 100% ..
the avg cpu for user is at 22% and system uses
3%?
I don't have glance to look at ? Can you show me where to get it?
In addition, since the logfile and control file
are on the interntal diskes? will it cuase the CPU to be at 100%?
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тАО06-29-2002 02:16 PM
тАО06-29-2002 02:16 PM
Re: CPU usage reaches 100%
There should be a demo of Glance available on your applications CDs (no 2) 60 day trial period
Do you have them ?
Steve
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тАО06-29-2002 02:18 PM
тАО06-29-2002 02:18 PM
Re: CPU usage reaches 100%
Do you know the title of the CD?
I had datamining ..etc..but i don't know where is glance at?
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тАО06-29-2002 02:48 PM
тАО06-29-2002 02:48 PM
Re: CPU usage reaches 100%
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тАО06-29-2002 02:48 PM
тАО06-29-2002 02:48 PM
Re: CPU usage reaches 100%
I don't have a copy of the HPUX OS software here so can't give you the name of the CD
Regarding logfile and control files
Are these showing from 'top'
I have attached a programme called dpd which will allow you to view process details and their parents. Save it, transfer it to your server using binary ftp and change permissions to 744. mv it to /usr/local/bin
dpd
to display more details
Hope this helps
Steve
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тАО06-30-2002 01:46 PM
тАО06-30-2002 01:46 PM
Re: CPU usage reaches 100%
If you do not have glance try "top".
Tim