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r3 - 2014-05-30 - 23:39:03 - Main.gcovell
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RationalTeamConcertOnZOSPromotionV50
<div id="header-title" style="padding: 10px 15px; border-width:1px; border-style:solid; border-color:#FFD28C; background-image: url(<nop>https://jazz.net/wiki/pub/Deployment/WebPreferences/TLASE.jpg); background-size: cover; font-size:120%"> ---+!! <img src="https://jazz.net/wiki/pub/Deployment/WebPreferences/new.png" alt="new.png" width="50" height="50" align="right"> Rational Team Concert for z/OS Enterprise Extension promotion improvement in 5.0 %DKGRAY% Authors: [[Main.LuLu][Lu Lu]] <br> Last updated: June 2, 2014 <br> Build basis: Rational Team Concert on z/OS 5.0 %ENDCOLOR%</div></sticky> <!-- Page contents top of page on right hand side in box --> <sticky><div style="float:right; border-width:1px; border-style:solid; border-color:#DFDFDF; background-color:#F6F6F6; margin:0 0 15px 15px; padding: 0 15px 0 15px;"> %TOC{title="Page contents"}% </div></sticky> <sticky><div style="margin:15px;"></sticky> ---++ Introduction This report provides data about the enhancement of the promotion feature in RTC EE v5.0. This testing compares performance between RTC EE version 5.0 sprint 4 and version 4.0.6. In RTC EE v5.0 'Finalize build maps' activities of Promotion feature is improved greatly when check on 'publish build map links' by enhancement. Objective of this testing is to to ensure there is no regression and verify the performance improvement for the new improvement. ---++ Disclaimer %INCLUDE{"PerformanceDatasheetDisclaimer"}% ---++ Findings In this scenario, we compare 'Finalize build maps' activity in Promotion after checking on 'publish build map links' between RTC EE version 5.0 sprint 4 and 4.0.6. * 'Finalize build maps' activity is improved greatly, its <strong>time reduced from '3 min 30 sec' to '49.5 sec', improved 70%</strong>. ---++ Topology The tests are executed in a Single Tier Topology infrastructure like the one in the following diagram: <img src="%ATTACHURLPATH%/singleTierRTCEETests.png" alt="singleTierRTCEETests.png" width="80%" height="80%"/> The RTC server was set up based on !WebSphere and DB2 on Linux for System z. The build machine with Rational Build Agent was on zOS. <table class="gray-table"> <tr> <th><strong>Test Environment</strong></th> <th></th> <th></th> </tr> <tr> <td><strong>RTC Server</strong></td> <td>Operating System & Version: Linux for System z (SUSE Linux Enterprise Server 10 (s390x))</br> System Resource : 10 GB Storage, 4 CPs (20000 mips, CPU type : 2097.710, CPU model: E12) </br> CLM: 5.0 Sprint4 (CALM-I20131211-0734), 4 GB heap size </br> DB2: 9.7.0.5 </br> WAS: 8.5.5.1 </br> </td> <tr> <td><strong>Build Forge Agent</strong></td> <td>Operating System & Version: z/OS 01.12.00</br> System Resource: 6 GB Storage, 4 CPs (20000 mips, CPU type : 2097.710, CPU model: E12)</br> Build System Toolkit: 5.0 Sprint4 (RTC-I20131211-0354) </td> </tr> </table> ---++ Methodology Monitor tools - NMON is used for RTC server and RMF on zOS was used for Rational Build Agent. The sample project used in this test was Mortgage*100 which is 100 duplicates of the [[https://jazz.net/wiki/bin/view/Main/ZOSBuildSamplesV4][Mortgage sample application]] . <table class="gray-table" style="width: 40%"> <tr> <th><strong>Test Data</strong></th> <th></th> </tr> <tr> <td><strong>Sample Project</strong></td> <td>Mortgage*100</td> </tr> <tr> <td><strong>Assets</strong></td> <td>600 COBOL programs<br/> 400 Copybooks<br/> 200 BMS<br/>3 others<br/> </td> </tr> <tr> <td><strong>Total Assets</strong></td> <td>1203 </td> </tr> </table> In the repository, source code is stored in one stream with one single component which includes 5 zComponent Projects. Each test scenario is executed twice against for comparation. ---+++Test Scenarios <table class="gray-table"> <tbody> <tr> <th align="center">Test Scenario</th> <th align="center">Description</th> </tr> <tr> <td>Full Dependency Build and Promotion</td> <td>1)Request full dependency build; </br> 2)Check on 'publish build map links'; </br> 3)Request promotion build to compare 'Finalize build maps' activity; </br> </td> </tr> </tbody> </table> ---++ Results ---+++ Run duration These data tables show the run duration comparing 'Finalize build maps' in Promotion between RTC EE version 5.0 sprint 4 and 4.0.6. From testing result of build time, we can find that 'Finalize build maps' activity in Promotion is improved about 70%. <img src="%ATTACHURLPATH%/duration.jpg" alt="duration.jpg" width="80%" height="80%" /> ---+++ Build Activities These data tables display the detailed build activities run time. In version 5.0 Sprint4, 'Finalize build maps' activity is improved greatly. From following activity charts, you can find that: 'Finalize build maps' process improved about 70%. <img src="%ATTACHURLPATH%/finalize_build_maps.jpg" alt="finalize_build_maps.jpg" width="70%" height="70%" /> ---+++ CPU and Memory for CLM Server <table class="gray-table"> <tbody> <tr> <td> This graph shows CPU and memory utilization for RTC server, data is collected by NMON tool. </td> </tr> </tr> <td><img src="%ATTACHURLPATH%/cpuMemoryV5.jpg" alt="cpuMemoryV5.jpg" width="70%" height="70%" /></td> </tr> <tr> <td><img src="%ATTACHURLPATH%/cpuMemoryV406.jpg" alt="cpuMemoryV406.jpg" width="70%" height="70%" /> </td> </tr> </tbody> </table> ---+++ CPU and Memory for Build Agent <table class="gray-table"> <tbody> <tr> <td> This graph shows CPU utilization and DASD RATE data for Build Forge Agent on ZOS machine, data is collected by RMF tool. </td> </tr> </tr> <td><img src="%ATTACHURLPATH%/bfaV5.jpg" alt="bfaV5.jpg" width="70%" height="70%" /></td> </tr> <tr> <td><img src="%ATTACHURLPATH%/bfaV406.jpg" alt="bfaV406.jpg" width="70%" height="70%" /> </td> </tr> </tbody> </table> ---++ Appendix A - Key Tuning Parameters #AppendixA <table class="gray-table"> <tbody> <tr> <th align="left" width="200"><strong>Product</strong><br></th> <th align="left" width="100"><strong>Version</strong></th> <th align="left" width="600"><strong>Highlights for configurations under test</strong></th> </tr> <tr> <td style="vertical-align: top;">IBM !WebSphere Application Server</td> <td style="vertical-align: top;">8.5.5.1 </td> <td style="vertical-align: top;"><strong>JVM settings:</strong> * GC policy and arguments, max and init heap sizes: <verbatim> -Xmn512m -Xgcpolicy:gencon -Xcompressedrefs -Xgc:preferredHeapBase=0x100000000 -Xmx4g -Xms4g</verbatim> <strong>OS configuration:</strong> <verbatim> * hard nofile 120000 * soft nofile 120000</verbatim> Refer to http://pic.dhe.ibm.com/infocenter/clmhelp/v4r0m4/topic/com.ibm.jazz.install.doc/topics/c_special_considerations_linux.html for details </td> </tr> <tr> <td>DB2</td> <td>DB2 Enterprise Server 9.7.0.5</td> <td>Tablespace is stored on the same machine as IBM !WebSphere Application Server</td> </tr> <tr> <td>License Server</td> <td>Same as CLM version</td> <td>Hosted locally by JTS server</td> </tr> <tr> <td>Network</td> <td> </td> <td>Shared subnet within test lab</td> </tr> </tbody> </table> ---++++!! About the authors Main.LuLu -------------------- ---+++++!! Questions and comments: * What other performance information would you like to see here? * Do you have performance scenarios to share? * Do you have scenarios that are not addressed in documentation? * Where are you having problems in performance? %COMMENT{type="below" target="PerformanceDatasheetReaderComments" button="Submit"}% %INCLUDE{"PerformanceDatasheetReaderComments"}% <sticky></div></sticky>
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