RE: [ITM62] Internal CPU Utilization Situations

We used PX agent CPU Entitlement_Used_Pct attribute on AIX Shared-SMT-4, the result looks good for us.


Thanks

Jun Feng Liu



From: [email protected] [mailto:[email protected]] On Behalf Of saby
Sent: Monday, June 24, 2013 12:19 PM
To: Discussion list for Tivoli product and Tivoli Ready products.
Subject: Re: [TME10] [ITM62] Internal CPU Utilization Situations


From: saby <sabyantony2001-/[email protected]<mailto:sabyantony2001-/[email protected]>>
To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>; Discussion list for Tivoli product and Tivoli Ready products. <[email protected]<mailto:[email protected]>>
Sent: Monday, June 24, 2013 9:39 PM
Subject: Re: [TME10] [ITM62] Internal CPU Utilization Situations

Thanks for the info.
I also used the same formula, (100- Idle%), to get the CPU usage. But this output is different than optium report. Now my manager is asking me to explain the difference between ITM and optium report. I'm using SMP CPU attributes . Is there any issue with this?
(AIX system has 20 cores.)

Regards
Sebastian
From: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>
To: saby <sabyantony2001-/[email protected]<mailto:sabyantony2001-/[email protected]>>; Discussion list for Tivoli product and Tivoli Ready products. <[email protected]<mailto:[email protected]>>
Sent: Monday, June 24, 2013 9:27 PM
Subject: Re: [TME10] [ITM62] Internal CPU Utilization Situations

I agree w/Jared about the superior metrics from the PX agent, especially as it regards true core usage--((sys % + user %)/100) * Num of Physical Cores--but from the sar report comparison I did with out AIX admins UX's CPU Busy % attribute tracked well over time.  I think the CPU Busy % is akin to (100 - Idle %), or put another way, very close to  (User %+ System %+ IO Wait%) from what I recall.

On Mon, Jun 24, 2013 at 10:36 AM, saby <sabyantony2001-/[email protected]<mailto:sabyantony2001-/[email protected]>> wrote:
Hi List,
I want to elaborate the scenario.
As per SLA if CPU utilization is more than 70% for a sustained period of 15 mintues then it is a breach. So which CPU attribute will help me to acheive this? Can anyone guide me on this?

Agent OS -- AIX
ITM -- 6.2.3 FP3
Report -- custom cognos report

Regards
Sebastian
From: saby <sabyantony2001-/[email protected]<mailto:sabyantony2001-/[email protected]>>
To: Discussion list for Tivoli product and Tivoli Ready products. <[email protected]<mailto:[email protected]>>
Sent: Monday, June 24, 2013 6:28 PM

Subject: Re: [TME10] [ITM62] Internal CPU Utilization Situations

Thanks Jared.

I'm using 6.23 FP3 and have to generate CPU reports for SLA (>70%). CPU Busy (percent) is breaching most of the times and we did a comparison with optim . Optim shows 40% when CPU Busy is 70% in ITM. So I want to know for SLA reports which attribute is best? What is the purpose of following attributes?

Avg CPU Busy 5
CPU Usage

Regards
Sebastian

From: Jared Seaton <[email protected]<mailto:[email protected]>>
To: saby <sabyantony2001-/[email protected]<mailto:sabyantony2001-/[email protected]>>; Discussion list for Tivoli product and Tivoli Ready products. <[email protected]<mailto:[email protected]>>
Sent: Monday, June 24, 2013 6:13 PM
Subject: Re: [TME10] [ITM62] Internal CPU Utilization Situations

I find that on AIX, it is best to use either the AIX Premium agent, or Unix OS Agent 6.2.3 FP2+ and monitoring Entitlement metrics, over standard Unix CPU metrics.  We have situations that monitor the Entitlement Used Pct, and Phys Busy Pct attributes of the AIX Premium agent.

The AIX metrics were introduced into the Unix OS Agent at 6.2.3 FP1, but I found too many issues at that level, and wouldn't recommend it.


------
Jared Seaton

twitter.com/jmseaton<http://twitter.com/jmseaton>

On Mon, Jun 24, 2013 at 8:15 AM, saby <sabyantony2001-/[email protected]<mailto:sabyantony2001-/[email protected]>> wrote:
Hi,

I'm facing almost same issues in CPU utilization (AIX ). Which is the correct attrribute to analyze CPU utilization?
Polling interval is 5 mints and  I used CPU Busy (percent) attribute. But when I compare with optim / topaz reports,  ITM is showing higher values (almost double).
There are multiple attributes available with the agent. Which one to use , I'm confused . Can anyone help me?

Avg CPU Busy 1
Avg CPU Busy 5
Avg CPU Busy 15
CPU Busy (Percent)
CPU Usage

Regards
Sebastian

From: "Hetter, Larry" <[email protected]<mailto:[email protected]>>
To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>
Sent: Friday, September 25, 2009 12:43 AM
Subject: [TME10] [ITM62] Internal CPU Utilization Situations

I am running ITM 6.2 FP2 using some of the built-in CPU situations for the SMP CPU attribute group on AIX boxes.  When I go to the System Information and System Details screen in TEPS, CPU ultization does not always seem to reflect the same things that the sar command and topas command show when they are run on the same box.  The internal CPU Situation using the Average CPU Busy Attribute Item also occasionally fires when other indicators on the box do not reflect high CPU utilization.

Has anyone else noticed this?
Does anyone know the behind the scenes commands used by TEPS to determine CPU utilization?

Thanks.

Larry Hetter
CareFirst BlueCross BlueShield
UNIX Systems and Event Management
410-880-6543
[email protected]<mailto:[email protected]>

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