1. CPU Explorer Training
2014

2. CPU Explorer
“Compile job and step executions resource counters into historical and execution views”

3. CPU Explorer – Data source
Description
SMF 30 subtype 1
Job start
SMF 30 subtype 2
Step interval end
SMF 30 subtype 3
Step last interval end
SMF 30 subtype 4
Step end
SMF 30 subtype 5
Job end
RMF 70
RMF CPU Activity: MSU’s, defined and group capacity
Interval records (subtypes 2 and 3) requires “Interval” scope selection

4. Captured vs Uncaptured times
RMF 70 refers to dispatch times
SMF 30 refers to MVS Captured Time
Picture from Enterprise Performance Strategies, Inc.

5. Historical views Target Table name Description CPU Job History cpuJobs
SID, Jobname and cpu counters
CPU LPAR History
cpuLpar
SID and cpu counters
CPU Programs History
cpuPrograms
SID, Jobname, Program name and CPU counters
CPU Users History
cpuUsers
SID, username and CPU counters
CPU Services History
cpuServices
Currently not used
CEC Activity History
cecHist
CECname and performance counters
LPAR Activity History
lparHist
CECname, LPAR and performance counters

6. Main CPU Fields Field Description Executions Number of steps executed
EXCP’s
Number of I/O operations
Total Service units
Service unit is independent of the hardware
CPU time
Processor time
Execution type
JES2, STC, TSO, OMVS, ASCH
Complexion Code
NORM, ABND, FLUSH
Cond Code
Condition code/abend code: 000, 222, 237

7. CPU history fields
List of fields and counters:

8. CPU Activity CPU times: CP, IFL, ZIIP, Zaap, ICF
Active 4-hour MSUs, instant MSUs
Defined and group capacities
Configuration: #CPs

9. Performance fields
List of fields and counters:

10. Jobs Views Mainframe applications are made of jobs
Job history
Job averages
Application resource usage
Elapsed time and room time
Execution jobs and steps
Top jobs

11. Job views Jobs historical view: Job history Job averages
Application resource usage
Elapsed time and room time
Job class usage
STC jobs
Jobname
System name
Sysplex name
SID
Completion code
Condition code
Execution type
RACF group
RACF username
Class
WLM class
WLM group
WLM report
Custom Fields

12. Applications - Filtering
Applications are defined through filtering facility:
SQL WHERE clauses
You can redefine anytime
You select it as a filter

13. Application patterns
Sistema = SUBSTRING(jobname,2,2)

14. Application - MIPS Calculation
MIPS = ServiceUnits-per-hour/180000

15. LPAR view LPAR historical view: System name System history
System peak times
System name
Sysplex name
SID
Completion code
Condition code
Execution type

16. Job Executions Single job execution detail Job executions details:
Job name
SID
RACF username
Region size
Job number
Steps
Class
Private memory size
Reader time
Completion code
System memory size
Start time
Condition code
WLM name
Private above 16MB
End time
Reason code
WLM class
Private bellow 16MB
System name
Execution type
WLM group
Duration
Sysplex name
RACF group
WLM report
Room time

17. Job Executions Caution!
This view tend to be enormous = millions of records;
Query tend to take a considerable time and return a lot of information;
Good practice is to use filters to limit the scope of the query (time limits, job names);
“Normally you can get the same information from the historical views.”

18. Step Executions Step Executions view: Single step execution details;
List the steps of a certain job;
Top program executions;
Jobs running on a certain period.
Step executions details:
Job name
System name
RACF group
Region size
Job number
Sysplex name
RACF username
Private memory size
Step number
SID
Class
System memory size
Start time
Completion code
WLM name
Private above 16MB
End time
Condition code
WLM class
Private bellow 16MB
Step name
Reason code
WLM group
Dasd connected time
Program name
Execution type
Duration
Dasd pending time

19. Programs view Programs historical view: Program usage history;
Which jobs run a program;
STC programs;
OMVS programs;
Where (LPAR’s) a certain program runs;
Mostly executed programs
Program name
SID
Job name
Condition code
System name
Completion code
Sysplex name
Execution type

20. Users view Users historical view: Users usage history;
Users per Group;
TSO users usage;
Abends per users.
RACF username
SID
RACF group
Condition code
System name
Completion code
Sysplex name
Execution type

21. Services view Services historical view: Service usage history; Abends;
Service on LPAR’s.
Service name
System name
Sysplex name
SID
Completion code
Condition code
Execution type
“Services view is a customized historical view configured by the user”.
“Huge installations can consolidate history data by business line and save them for long periods.”