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r2 - 2014-03-05 - 04:59:23 - Main.koinuma
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ClearCaseVersionImporter406PerformanceReport
<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/uc.png" alt="todo.png" width="50" height="50" align="right"> !ClearCase Version Importer performance report: Rational Team Concert 4.0.6 release %DKGRAY% Authors: [[Main.MasabumiKoinuma][Masa Koinuma]] [[Main.CunxiaSun][Cunxia Sun]] <br> Build basis: Rational Team Concert 4.0.6 %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> The !ClearCase Version Importer is a new feature of Rational Team Concert 4.0.5. It can migrate all the versions in any branches in Rational !ClearCase in a single operation, and the version branching is also replicated in Rational Team Concert source control. This document provides performance data that you can refer to. The performance result gives you can idea about how long it takes to import files and folders using the importer, although this example is not a benchmark. Your performance also varies with the speed of the server host, database type, and the client host that you use. The performance report of 4.0.5 release is available at [[/library/article/1368][ClearCase Version Importer Performance Report in Rational Team Concert 4.0.5]]. This document also provides some considerations to migrate the data efficiently. For more information about the !ClearCase Version Importer, see [[https://pic.dhe.ibm.com/infocenter/clmhelp/v4r0m6/topic/com.ibm.team.connector.scm.cc.doc/topics/c_version_importer_intro.html][Migrating data with the ClearCase Version Importer]]. ---++ Topology In this test environment, all the softwares are installed and configured on a single host except for !ClearCase Servers. The Version Importer commands are run on the same host as well. Here is the single server topology variables. | *Metadata Variable* | *Value* | | Operating System | Windows 7 64bit | | CPU | Intel Core i7-2600 CPU @ 3.4GHz (8-core) | | Memory | 8GB | | Network | 100Mbps Ethernet | | Database Management System | DB2 10.1 | | Application Server | Tomcat 7 (3GB max heap) | | License Management System | Trial | | User Management System | Tomcat | | !ClearCase Client Version | | | Other technologies | None | <img src="%ATTACHURLPATH%/PerfTopology.png" alt="PerfTopology.png" width="50%" height="50%" /> ---++ Methodology The export command of the Version Importer is run against the sub-folders of VOBs listed in the result table, and duration of the command is measured. Then, the intermediate data is imported to a new component of a new stream on the local CCM server, and the duration of the command is measured. The user mapping is not configured. ---++ Results *Note:* The table shows an average time to import or export per version. The number varies by test case because there are several other factors that contribute to the duration (such as cleartext pool cache or the number of files and directories in single Rational Team Concert component). ---+++ Single view migration | *Folder Name* | *# of Elements (Folders/Symbolic Links/Files)* || *# of File versions* | *Export Duration (in seconds)* || *Average Export time per<br> version in seconds* | *Import Duration (in seconds)* || *Average Import time per<br> version in seconds* | | \atria\lib\tbs | 85 | (0/3/82) | 10,709 | 1h00m | (3,616s) | 0.34 | 32m | (1,920s) | 0.18 | | \applets\ucc | 3,277 | (589/40/2,598) | 120,161 | 10h06m | (36,360s) | 0.30 | 7h38m | (27,480s) | 0.23 | | \Java\Windows | 16,230 | (2,282/1/13,947) | 27,920 | 11h06m | (39,960s) | 1.43 | 54m | (3,240s) | 0.12 | | \Java\HPUX | 18,340 | (1,925/89/16,326) | 32,722 | 14h24m | (51,840) | 1.58 | 1h26m | (5,160s) | 0.16 | | \design | 31,922 | (3,880/341/27,701) | 110,649 | 110h51m | (399,060s) | 3.6 | 14h54m | (53,640s) | 0.48 | ---+++ Multiple view migration | *Folder Name* | *# of views* | *# of Elements (Folders/Symbolic Links/Files)* || *# of File versions* | *Export Duration* | *Average Export time per<br> version in seconds* | *Import Duration* | *Average Import time per<br> version in seconds* | | \nucor\client | 1 | 4,769 | (651/25/4093) | 158,063 | 22h20m | 0.51 | 11h05m | 0.25 | | \nucor\client | 3 | 6,126 | (1,953/75/4,098) | 156,525 | 36h07m | 0.83 | 17h51m | 0.41 | <sticky></div></sticky>
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