Re: cp3kvmxt / monwrite and storage info

[Barton Robinson]

No, monitor data does NOT contain storage information from other
LPARs.   The CPU information comes from the HMC and is only available to
show CPU consumption by the LPAR - nothing within.



On 1/5/2016 6:28 AM, Grzegorz Powiedziuk wrote:

Hello,
I am trying to capture performance data with cp3kvmxt and I am having
trouble to get anything more than CPU utilization.
The person who imports the EDF file says that his tool can't see storage
configuration for other LPARs and that it should. He can see storage
utilization only for a local z/VM instance.
The CPU utilization and configuration is there for all LPARs though.

Does monwrite data even contain storage information from other LPARs? I
don't remember seeing anywhere in performance monitor toolkit this
information and it uses same mondcss after all. In perfkit all I can see is
CPU stats from other LPARS (menu 8).


Here is what I do.

I have a user id with following directory statements required for using
mondcss:

IUCV *MONITOR MSGLIMIT 255
NAMESAVE MONDCSS

>From the userid id I did enable all necessary monitor domains:

q monitor
MONITOR EVENT ACTIVEBLOCK4 PARTITION8192
MONITOR DCSS NAME - MONDCSS
CONFIGURATION SIZE   68 LIMIT 1 MINUTES
CONFIGURATION AREA IS FREE
USERS CONNECTED TO *MONITOR - PERFSVM
   PERSMAPI
MONITOR   DOMAIN ENABLED
PROCESSOR DOMAIN ENABLED
STORAGE   DOMAIN ENABLED
SCHEDULER DOMAIN DISABLED
SEEKS DOMAIN DISABLED
USER  DOMAIN ENABLED
ALL USERS ENABLED
I/O   DOMAIN ENABLED
PCIF CLASS ENABLED
ALL DEVICES ENABLED
NETWORK   DOMAIN ENABLED
ISFC  DOMAIN ENABLED
APPLDATA  DOMAIN ENABLED
ALL USERS ENABLED
SSI   DOMAIN ENABLED
MONITOR SAMPLE ACTIVE
INTERVAL1 MINUTES
RATE 2.00 SECONDS
MONITOR DCSS NAME - MONDCSS
CONFIGURATION SIZE 4096 LIMIT 1 MINUTES
CONFIGURATION AREA IS FREE
USERS CONNECTED TO *MONITOR - PERFSVM
   PERSMAPI
MONITOR   DOMAIN ENABLED
SYSTEMDOMAIN ENABLED
PROCESSOR DOMAIN ENABLED NOCPUMFC
STORAGE   DOMAIN ENABLED
USER  DOMAIN ENABLED
ALL USERS ENABLED
I/O   DOMAIN ENABLED
PCIF CLASS ENABLED
ALL DEVICES ENABLED
NETWORK   DOMAIN ENABLED
ISFC  DOMAIN ENABLED
APPLDATA  DOMAIN ENABLED
ALL USERS ENABLED
SSI   DOMAIN ENABLED



The mondscss segment size according to my calculations is pretty big:
q nss map
..
0012 MONDCSS  CPDCSS N/A09000  0CFFF
..
0CFF-09000=16383  (decimal) and 16383*4K (+1page) pages gives 64MB if I am
doing the math right.


I run the CP3KVMXT  with mondcss argument  and specify intervals and
timeframes manually (30 minutes intervals for 5 hours total run)

When it is done, it creates a bunch of files like:

D111815  ACTVUSRS A1
D111815  BCUDATA  A1
D111815  DEBUGA1
D111815  EDF  A1
D111815  SAMPSA1

There are no errors.
I've also tried to run monwrite first and use the result file as an input
for cp3kvmxt. Also no luck.

The EDF is the one I send to person with the tool to analyze it.

What am I doing wrong?

Thank you
Gregory

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Re: cp3kvmxt / monwrite and storage info

[Alan Altmark]

On Tuesday, 01/05/2016 at 02:30 GMT, Grzegorz Powiedziuk 
 wrote:
> I am trying to capture performance data with cp3kvmxt and I am having
> trouble to get anything more than CPU utilization.
> The person who imports the EDF file says that his tool can't see storage
> configuration for other LPARs and that it should. He can see storage
> utilization only for a local z/VM instance.
> The CPU utilization and configuration is there for all LPARs though.
>
> Does monwrite data even contain storage information from other LPARs? I
> don't remember seeing anywhere in performance monitor toolkit this
> information and it uses same mondcss after all. In perfkit all I can see 
is
> CPU stats from other LPARS (menu 8).

Memory and I/O utilization are things that LPARs know only for themselves, 
so you have to pull that data directly from the other LPARs.

Alan Altmark

Senior Managing z/VM and Linux Consultant
Lab Services System z Delivery Practice
IBM Systems & Technology Group
ibm.com/systems/services/labservices
office: 607.429.3323
mobile; 607.321.7556
alan_altm...@us.ibm.com
IBM Endicott

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