Job QTOTNTP Running High CPU %

770 pts.
Tags:
IBM iSeries
LPAR
I noticed a problem with a server job QTOTNTP running over 70 % CPU for several days on a test LPAR and was wondering if any anyone has seen this happen or what may have caused this job to run at high cpu % Thanks

Answer Wiki

Thanks. We'll let you know when a new response is added.

There are all kinds of reasons associated with machine tuning and database design etc. The best place to start would be to run performance monitor on the job and collect the stats to see what area is causing the CPU useage, then investigate according to what it’s telling you.

My general view starts with ‘well, the machine wouldn’t allocate that much CPU if it had other things to do or thought it didn’t need to’
– Did it impact on other stuff? was other work slowed down?
Can you make the machine busy with CPU activity ( calculate PI to 10 million places or until 30 minutes have elapsed)
Make it busy with Disk I/o ( write 1000000 records read 1000000 records, dlete 10000000records)

and run the job concurrently to see what happens?

It isn’t a PC – it usually knows what its doing.

Discuss This Question: 1  Reply

 
There was an error processing your information. Please try again later.
Thanks. We'll let you know when a new response is added.
Send me notifications when members answer or reply to this question.

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
  • Security1
    I first discovered the High CPU usage by checking the iSeries performance data for a Monthly report and notice the batch server job issue occurred over 3 weeks ago and do not believe there was any impact to other system activities that run on this LPAR. I will investigate further into the performance data for this time period and find out what it shows. Thanks for your feeback and advice.
    770 pointsBadges:
    report

Forgot Password

No problem! Submit your e-mail address below. We'll send you an e-mail containing your password.

Your password has been sent to:

To follow this tag...

There was an error processing your information. Please try again later.

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Thanks! We'll email you when relevant content is added and updated.

Following