topic Re: High CPU utilization in process tti or ttisr in Operating System - HP-UX

High CPU utilization in process tti or ttisr

Eric Byland — Wed, 24 Nov 2004 09:35:44 GMT

When checking "top" I see high cpu utilization (about %35-%40) in process "tti" or "ttisr". In the past we've found it to be caused by a dumb terminal left logged in . By unplugging the terminal the process went down to a respectable .94%. What is the cause and what can I do to prevent this in the future? Is there a patch available? Bad MUX panel maybe?

Re: High CPU utilization in process tti or ttisr

Steven E. Protter — Wed, 24 Nov 2004 09:49:58 GMT

Could be a hardware problem with the terminal or mux. In that case, fix or repair.

Patch database:
http://www1.itrc.hp.com/service/patch/mainPage.do

Search for mux tti ttisr

Read the notes carefully to see if the patches are relavent to your behavior.

I am an advocate of keeping up with quarterly patch releases as well. You might wish to run a path assessment:
http://www1.itrc.hp.com/service/patch/assessSystemsPage.do?BC=patch.breadcrumb.main|

SEP

Re: High CPU utilization in process tti or ttisr

Sanjay_6 — Wed, 24 Nov 2004 10:15:40 GMT

Hi Eric,

How are you on the patches,

Try this patch,

http://www2.itrc.hp.com/service/cki/patchDocDisplay.do?patchId=PHNE_29519

Hope this helps.

Regds

Re: High CPU utilization in process tti or ttisr

Eric Byland — Wed, 24 Nov 2004 13:35:01 GMT

I forgot to mention, we're using UX11.11.
Thanks!

Re: High CPU utilization in process tti or ttisr

Steven E. Protter — Wed, 24 Nov 2004 13:45:09 GMT

11.11

Good idea to always state OS version and hardware platform in initial post. It is almost always relavent.

http://www2.itrc.hp.com/service/patch/patchDetail.do?BC=patch.breadcrumb.main|patch.breadcrumb.search|&patchid=PHNE_30463&context=hpux:800:11:11

SEP