IBM Application Performance Analyzer for z/os Version IBM Corporation

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1 IBM Application Performance Analyzer for z/os Version 11

2 IBM Application Performance Analyzer for z/os Agenda Introduction to Application Performance Analyzer for z/os A tour of Application Performance Analyzer for z/os The graphical user interface The 3270 terminal interface Summary 2

3 The IBM Problem Determination Tools Suite for z/os IBM Problem Determination Tools 3 Debug Tool for z/os Fault Analyzer for z/os Workload Simulator for z/os & OS/390 Hourglass IBM 2011 Offerings File Manager for z/os Application Performance Analyzer for z/os Migration Utility ISPF Productivity Tool Application Performance Analyzer for z/os Identify performance and response time problems in production Reduce batch application turnaround time Multiple languages: COBOL PL/I C/C++ Assembler Java Natural Multiple z/os environments Batch CICS IMS DB2 (SP, DDF/DRDA) Websphere MQ Websphere Application Server Adabas Can be integrated with Fault Analyzer and Application Performance Analyzer with source mapping side files Workstation GUI plug-in

4 What is Application Performance Analyzer (APA) for z/os? Application Performance Analyzer for z/os is an application performance-measurement tool that helps you perform application performance tuning for applications running on IBM z/os systems APA will measure and report on how system resources are used by applications running in virtually any z/os address space APA can minimize the time needed to resolve production performance problems by identifying the issue APA can also analyze transactions running under an online subsystem such as IBM CICS, IBM IMS, and WebSphere Application Server, as well as DB2 stored procedures Using APA helps you maximize the performance of your existing hardware resources and helps you improve the performance of your applications and subsystems APA aids application design, development and maintenance cycles. It helps evaluate application prototypes in the design phase, review the impact of increased data volume or changes in business requirements on performance 4

5 Why should you do application performance tuning? Resolve production performance problems Improve response time in online applications Reduce batch run time Fix application bottlenecks Business Request Development Cycle Deployment Analyze Generate Code Test & Debug System Test Promote Prevent problems in new / modified applications Ensure performance goals are still being met Verify that changes will not hurt performance 5

6 Application Performance Analyzer - Provides rapid pinpointing of enterprise application bottlenecks TSO BATCH IMS CICS DB2 DB2 SP DB2 DDF MQ Series JAVA USS Adabas Natural Observation session Print reports from z/os Application Performance Analyzer APA Observation Files ISPF GUI Find the bottlenecks in application code View reports online with ISPF View reports in PDF format on PC 6

7 Application Performance Analyzer Features Online analysis: Displays overall system activity, enabling you to check job execution online and select which active job to monitor. Monitoring: Automatically starts to monitor job performance when the job or program becomes active Reports: Provides multiple summary reports to assist in identifying key areas of performance bottlenecks. Analysis data is available in printed reports, which can be created as an Adobe PDF file or as an XML file Performance analysis: Provides CPU usage, as well as multiple DASD statistics including EXCP, VSAM statistics, and I/O wait time 7 DB2 monitoring: Delivers relevant information for DB2 performance analysis and tuning, including SQL statements CICS monitoring: Includes monitoring by specific transaction or transaction prefix with wildcards. CICS+ provides tracing support for critical situations IMS support: Delivers IMS application performance data on call time and service-call time for DL/I. IMS+ can be used to trace all IMS calls. WebSphere MQ support: Provides CPU usage by queue, by request, and by transaction, as well as service time and wait time for the same

8 IBM Application Performance Analyzer for z/os Agenda Introduction to Application Performance Analyzer for z/os A tour of Application Performance Analyzer for z/os The graphical user interface The 3270 interface Summary 8

9 Application Performance Analyzer Live Demo 9

10 Visit our web site: 10

11 Summary Copyright IBM Corporation All rights reserved. The information contained in these materials is provided for informational purposes only, and is provided AS IS without warranty of any kind, express or implied. IBM shall not be responsible for any damages arising out of the use of, or otherwise related to, these materials. Nothing contained in these materials is intended to, nor shall have the effect of, creating any warranties or representations from IBM or its suppliers or licensors, or altering the terms and conditions of the applicable license agreement governing the use of IBM software. References in these materials to IBM products, programs, or services do not imply that they will be available in all countries in which IBM operates. Product release dates and/or capabilities referenced in these materials may change at any time at IBM s sole discretion based on market opportunities or other factors, and are not intended to be a commitment to future product or feature availability in any way. IBM, the IBM logo, the on-demand business logo, Rational, the Rational logo, and other IBM products and services are trademarks of the International Business Machines Corporation, in the United States, other countries or both. Other company, product, or service names may be trademarks or service marks of others. 11

12 Backup Slides Backup Slides 12

13 What is the Application Performance Analyzer GUI? The desktop version of Application Performance Analyzer 3270 interface Encompasses both the Observation Request and Reporting functions Including the R02 screens list, detail views, edit functions and reports for the Observation. An alternative interface to Application Performance Analyzer Provides a majority of parallel tools and functionality as 3270 interface Used for submitting new observation requests, and for navigating the Performance Analysis Reports generated from observation requests. 13

User id and password STC dialog: Set the default startup APA Started Task (STC) is

14 Setup Unzip the APA/GUI file and click the "APA.exe" file to start APA/GUI Logon to z/os: Enter the z/os Host Address, Host Port, TSO User id and password STC dialog: Set the default startup APA Started Task (STC) is selected Once connected, APA/GUI will automatically populate with the Observations List of the remote repository Default APA STC 14

15 Connected to the Mainframe Indicates Local or or Remote connection 15

Observations List View Toolbar Observations List toolbar Refresh Observations List Filter Observations List Search Observations New Observation New Trigger Observation Expand

16 Observations List View Toolbar Observations List toolbar Refresh Observations List Filter Observations List Search Observations New Observation New Trigger Observation Expand All (expand all observations) Collapse All (collapse all observations) Refresh Filter New New Observation Expand All All Search New New Trigger Observation Collapse All All 16

17 Click on new observation button Create a new observation 17

New observation details Create and submit a new observations Enter the specification details Seven tabs where request information may be entered

18 New observation details Create and submit a new observations Enter the specification details Seven tabs where request information may be entered Each tab name indicates if data has been entered Green Dot entered data is error free. Yellow or Red Dot - warnings or errors in the entered data 18

19 Observation is scheduled 19

20 Observation has completed 20

21 Right click on report and select Download Reports 21

22 Report list is displayed and can be clicked on to select S01 Measurement Profile report shows high CPU activity Associated reports are are displayed and and can can be be selected 22

23 Report View (continued) Toolbar Provides buttons for report-level actions which include: Print Close Report Save As Close All Reports Find Expand All Copy Collapse All Print Print Find/Search Save as as Copy Expand All All Collapses All All Close Report Close all all Reports 23

24 S01 report also shows measurement significance Measurement SRB shows APA CPU usage 24

25 C01 CPU Usage by Category 25

26 S09 Measurement Analysis report displays possible performance improvement 26

27 S09 Measurement Analysis report displays possible performance improvement 27

28 IBM Application Performance Analyzer for z/os Agenda Introduction to Application Performance Analyzer for z/os A tour of Application Performance Analyzer for z/os The graphical user interface The 3270 terminal interface Summary 28

29 Navigate to Application Performance Analyzer 3270 interface Create a new observation request Enter 29

30 Enter job name and measurement specifications Enter 30

31 New request has been added Split screen and submit job PF2 Enter 31

32 As sampling for each step completes, a message is received Enter 32

33 Select request with an r line command Enter 33

34 Each step generates reports, select the appropriate report Enter 34

35 A01 Performance Report index is displayed Select S01 Measurement Report Enter 35

36 Why use the Measurement Profile report (S01)? Start your analysis with the S01 report This report tells you whether most of the time was spent in CPU or WAIT (or both) Based on this information, you can focus your tuning effort on CPU or WAIT Excerpt of the APA "Measurement Profile" report The S01 report also provides information about the "Quality" of the measurement and APA overhead 36

37 Measurement Profile report This job is CPU intensive, tuning efforts should be focused there This This job job is is CPU intensive. Much of of the the CPU time time is is in in application code. PF8 PF8 PF8 37

38 Measurement profile report also shows significance of sampling, as well as the Measurement SRB used by APA itself Measurement significance is is a "quality" metric. Accuracy is is decreased by by the the system being busy Measurement SRB SRB shows the the CPU time time used by by APA APA 38

39 Scroll back to top of measurement report Cursor select the C01 report Enter 39

40 Use the + sign to expand all levels of the CPU Usage by Category report Enter 40

41 Use the p line command to display program source for the SAM2V csect Enter 41

42 The program statements that used the most CPU time are displayed Bar charts indicate statements using the most resources PF3 42

43 Navigate to the S09 Measurement Analysis report using the line command shortcut Enter 43

44 The purpose of these observations is to provide analysis of resource usage and, in some cases, suggest performance improvement opportunities. In this example, the focus is on CPU consumption. PF8 44

45 Reports that provide additional information are displayed and can be cursor selected 45

46 Tuning the application At this point, there is enough information to start tuning the application The application spent most of its time in CPU Active Most of the CPU time was spent executing instructions in application program SAM2V or system modules invoked by SAM2V The source statements below caused most of the CPU time 46

47 Tuning the application What can be done to improve this application? Statements 101 through 110 use a lot of CPU because they are inside a loop, and do not need to be Improvement: move them outside the loop Many of the numeric work variables are in character format, such as BALANCE-COUNT and BALANCE-TOTAL Improvement: define them as packed or binary numeric 47

48 IBM Application Performance Analyzer for z/os Agenda Introduction to Application Performance Analyzer for z/os A tour of Application Performance Analyzer for z/os The graphical user interface The 3270 terminal interface Summary 48

49 Visit our web site: 49

IBM PDTools for z/os. Update. Hans Emrich. Senior Client IT Professional PD Tools + Rational on System z Technical Sales and Solutions IBM Systems

IBM PDTools for z/os. Update. Hans Emrich. Senior Client IT Professional PD Tools + Rational on System z Technical Sales and Solutions IBM Systems IBM System z AD Tage 2017 IBM PDTools for z/os Update Hans Emrich Senior Client IT Professional PD Tools + Rational on System z Technical Sales and Solutions IBM Systems hans.emrich@de.ibm.com 2017 IBM