PeopleSoft Ping David Kurtz www.go-faster.co.uk Go-Faster Consultancy Ltd. david.kurtz@go-faster.co.uk www.go-faster.co.uk

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 www.go-faster.co.uk www.go-faster.co.uk

Who am I? Independent consultant System Performance Tuning Oracle/Unix/Tuxedo PeopleSoft Apps www.ukoug.org Book www.apress.com www.go-faster.co.uk

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. www.go-faster.co.uk

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 www.go-faster.co.uk

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 www.go-faster.co.uk

Ping Chart www.go-faster.co.uk

Example of Contention www.go-faster.co.uk

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 www.go-faster.co.uk

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 www.go-faster.co.uk

Case1:Browser Time www.go-faster.co.uk

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 www.go-faster.co.uk

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 www.go-faster.co.uk

Case 2: Application Server CPU Benchmark? www.go-faster.co.uk

Case 2: Two Application Servers HP-UX 11 750Mhz Ping Time: 1.43s [PT8.43.15] Windows 2000 3.2Ghz Ping Time: 0.33s www.go-faster.co.uk

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? www.go-faster.co.uk

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 www.go-faster.co.uk

Questions www.go-faster.co.uk

PeopleSoft Ping David Kurtz www.go-faster.co.uk Go-Faster Consultancy Ltd. david.kurtz@go-faster.co.uk www.go-faster.co.uk