1. PeopleSoft Ping David Kurtz www.go-faster.co.uk
Go-Faster Consultancy Ltd.

2. Resources If you can’t hear me say so now.
Please feel free to ask questions as we go along.
The presentation will be available from
Customer Connection –> Events -> UK Tech PUG

3. Who am I? Independent consultant System Performance Tuning
Oracle/Unix/Tuxedo
PeopleSoft Apps
Book

4. What is PeopleSoft Ping?
It is a component which runs a ‘standard’ transaction and measures the duration of that transaction at each component in the PIA.

5. What does PS Ping Measure?
Browser/
Network
Time
Web
Server
Time
Application
Server Time
Database
Time
Web Server
Access Log
Tuxedo
Service
Trace
PeopleTools
Trace
Oracle
SQL*Trace
Browser
(presentation & JavaScript)
Java Servlet
(presentation logic)
Application Server
(application logic)
DBMS
(application data & meta-data
Screen
Paint
Java
Script
http / https
Servlet
Thread
Tuxedo Message
SQL
APPQ
PSAPPSRV

6. Where is PeopleSoft Ping?
DERIVED_PTP.HTMLCTLEVENT.FieldChange
Each ping saves the results from the previous ping to the database
PS_PTP_TST_CASES
Can get basic Ping graphs from PeopleSoft
Can’t control scale
I prefer to use Excel

7. Ping Chart

8. Example of Contention

9. The Database Test Repeatedly queries same rows from
PTP_TABLE1_VW
PTP_TABLE1
Poor test of database performance
Data blocks will become cached
%PerfTime = Application Server clock

10. The Application Server Test
Creates and copies row sets
Application server time
= CPU time + DB time + Cache access time + Wait Time
Row set operations CPU intensive
Indication of CPU performance

11. Case1:Browser Time

12. Case 1: Desktop Specification
384Mhz PC, 64Mb physical memory
Windows Commit Charge 125Mb
It’s paging memory to/from disk
With PS Ping running on PC, shut down everything else (virus checking etc).
Commit Charge reduced to 89Mb
Response time fell from 0.8s to 0.4s

13. Case 1: Conclusion Paging memory from disk is slow
General Windows performance affected
Including the browser
Make sure that you have enough physical memory in your desktops
The web browser is a critical business platform
It’s not just for surfing

14. Case 2: Application Server CPU Benchmark?

15. Case 2: Two Application Servers
HP-UX 11
750Mhz
Ping Time: 1.43s
[PT ]
Windows 2000
3.2Ghz
Ping Time: 0.33s

16. Case 2: Conclusion Application server is CPU intensive
If active and not waiting for the database, it is using CPU to execute PeopleCode etc.
Fewer faster –v- More slower CPUs?
CPU speed is critical
When executing in user mode, a clock cycle is a clock cycle is a clock cycle?

17. Conclusion Ping is not a fundamental indicator of system performance.
It does indicate:
contention in a particular tier.
CPU performance of Application Server
Performance of Browser

18. Questions

19. PeopleSoft Ping David Kurtz www.go-faster.co.uk
Go-Faster Consultancy Ltd.