Presentation on theme: "PeopleSoft Ping David Kurtz Go-Faster Consultancy Ltd."— Presentation transcript:
PeopleSoft Ping David Kurtz Go-Faster Consultancy Ltd. email@example.com www.go-faster.co.uk
2 Resources If you cant 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
3 Who am I? Independent consultant System Performance Tuning –Oracle/Unix/Tuxedo –PeopleSoft Apps www.ukoug.org Book –www.apress.com
www.go-faster.co.uk4 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.uk6 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 –Cant control scale –I prefer to use Excel
www.go-faster.co.uk9 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.uk10 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.uk12 Case 1: Desktop Specification 384Mhz PC, 64Mb physical memory –Windows Commit Charge 125Mb Its 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.uk13 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 –Its not just for surfing
www.go-faster.co.uk14 Case 2: Application Server CPU Benchmark?
www.go-faster.co.uk15 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.uk16 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.uk17 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