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	<title>PerformanceWiki [the blog]</title>
	<link>http://performancewiki.com/wordpress</link>
	<description>performance tuning tips: quick &#038; to the point.</description>
	<pubDate>Mon, 25 Jan 2010 21:52:29 +0000</pubDate>
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	<language>en</language>
			<item>
		<title>How to bind DB2 database manager to cores?</title>
		<link>http://performancewiki.com/wordpress/main/how-to-bind-db2-database-manager-to-cores</link>
		<comments>http://performancewiki.com/wordpress/main/how-to-bind-db2-database-manager-to-cores#comments</comments>
		<pubDate>Mon, 25 Jan 2010 21:52:29 +0000</pubDate>
		<dc:creator>info</dc:creator>
		
		<category>Uncategorized</category>

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		<description><![CDATA[
Step 1. Set DB2 registry variable as follows:&#160;&#160;&#160;&#160;&#160;&#160;&#160; DB2_RESOURCE_POLICY=/db2home/inst1/mydir/bindproc.txt
Step 2: make sure the bindproc.txt has the following entry:&#160;&#160;&#160;&#160;&#160;&#160;&#160; (the following example binds two cores to the process)

&#60;RESOURCE_POLICY&#62;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#60;GLOBAL_RESOURCE_POLICY&#62;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;
 &#60;METHOD&#62;CPU&#60;/METHOD&#62;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#60;RESOURCE_BINDING&#62;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#60;RESOURCE&#62;1&#60;/RESOURCE&#62;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#60;/RESOURCE_BINDING&#62;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#60;RESOURCE_BINDING&#62;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;
 &#60;RESOURCE&#62;2&#60;/RESOURCE&#62;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#60;/RESOURCE_BINDING&#62;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#60;/GLOBAL_RESOURCE_POLICY&#62;&#60;/RESOURCE_POLICY&#62;
.pw.

]]></description>
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		</item>
		<item>
		<title>DB2 Buffer Pool Utilization</title>
		<link>http://performancewiki.com/wordpress/main/db2-buffer-pool-utilization</link>
		<comments>http://performancewiki.com/wordpress/main/db2-buffer-pool-utilization#comments</comments>
		<pubDate>Thu, 21 Jan 2010 18:09:16 +0000</pubDate>
		<dc:creator>info</dc:creator>
		
		<category>Uncategorized</category>

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		<description><![CDATA[
Buffer pool utilization

David J. Kline, and Gabor Wieser from IBM describes, in very simple terms, how bufferpools in DB2 should be designed. In their article on developerWorks, they described the following:

The
most important reason to use more than one user table space is to
manage buffer utilization. A table space can only be associated with
one buffer pool, [...]]]></description>
		<wfw:commentRss>http://performancewiki.com/wordpress/main/db2-buffer-pool-utilization/feed/</wfw:commentRss>
		</item>
		<item>
		<title>Performance with IBM DB2 on NetApp FAS and IBM Storage with Linux</title>
		<link>http://performancewiki.com/wordpress/main/performance-with-ibm-db2-on-netapp-fas-and-ibm-storage-with-linux</link>
		<comments>http://performancewiki.com/wordpress/main/performance-with-ibm-db2-on-netapp-fas-and-ibm-storage-with-linux#comments</comments>
		<pubDate>Tue, 12 Jan 2010 19:24:18 +0000</pubDate>
		<dc:creator>info</dc:creator>
		
		<category>Uncategorized</category>

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		<description><![CDATA[
IBM DB2 9.5 Performance and Scalability on RHEL5 with NFS and FCP Using NetApp FAS or IBM N series Storage System
http://media.netapp.com/documents/tr-3775.pdf
Topics include:
 HARDWARE AND SOFTWARE SETTINGS&#160;SERVER &#160;STORAGE &#160;LINUX KERNEL PARAMETERCONFIGURATION AND TUNING&#160;LINUX NFS CONFIGURATION AND TUNING&#160;LINUX FCP CONFIGURATION AND TUNING&#160;DB2 CONFIGURATIONDB2 PERFORMANCE AND SCALABILITY OVER NFS AND FCP &#160;LINUX NFS AND FCP TUNING EFFECTS &#160;LINUX [...]]]></description>
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		</item>
		<item>
		<title>Scale large OLTP workload with DB2 9 for System z on Linux</title>
		<link>http://performancewiki.com/wordpress/main/scale-large-oltp-workload-with-db2-9-for-system-z-on-linux</link>
		<comments>http://performancewiki.com/wordpress/main/scale-large-oltp-workload-with-db2-9-for-system-z-on-linux#comments</comments>
		<pubDate>Tue, 12 Jan 2010 19:18:09 +0000</pubDate>
		<dc:creator>info</dc:creator>
		
		<category>Uncategorized</category>

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Scale large OLTP workload with DB2 9 for System z on Linux
Simple and effective tuning paper (about 9 pages) by IBM
http://download.boulder.ibm.com/ibmdl/pub/software/dw/linux390/perf/ZSW03028-USEN-00.pdf
key topics include:
Environmental SetupServer softwareLinux Kernel tunablesI/O schedulerDatabase ImplementationAsynchronous I/ODirect I/OWorkload DescriptionResults.pw.


]]></description>
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		</item>
		<item>
		<title>Tuning and Monitoring Database System Performance UNIX Windows Linux</title>
		<link>http://performancewiki.com/wordpress/main/tuning-and-monitoring-database-system-performance-unix-windows-linux</link>
		<comments>http://performancewiki.com/wordpress/main/tuning-and-monitoring-database-system-performance-unix-windows-linux#comments</comments>
		<pubDate>Tue, 12 Jan 2010 19:12:45 +0000</pubDate>
		<dc:creator>info</dc:creator>
		
		<category>Uncategorized</category>

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		<guid isPermaLink="false">http://performancewiki.com/wordpress/main/tuning-and-monitoring-database-system-performance-unix-windows-linux</guid>
		<description><![CDATA[
Database System Performance Best Pract=
ices on UNIX, Windows and LinuxThe paper published by IBM and found he=
re 
http://www.ibm.com/developerworks/data/bestpractices/systemperformance/?S=
_TACT=3D105AGX11&#38;S_CMP=3DLP. 
The key area covered an=
d are at the heart of performance tuning include the following:
=
The first step:  configuring for good performanceHardware =
configurationAIX configurationSolaris and HP-UX configura=
tionLinux configurationDB2 Data Partitioning Feature=
Choice of code page and collationPhysical database
 [...]]]></description>
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		</item>
		<item>
		<title>Database Vendor Performance Benchmark Links</title>
		<link>http://performancewiki.com/wordpress/main/database-vendor-performance-benchmark-links</link>
		<comments>http://performancewiki.com/wordpress/main/database-vendor-performance-benchmark-links#comments</comments>
		<pubDate>Tue, 12 Jan 2010 18:31:46 +0000</pubDate>
		<dc:creator>info</dc:creator>
		
		<category>Uncategorized</category>

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		<description><![CDATA[
The following are performance benchmark Web pages from major DBMS and hardware vendors:
Microsoft SQL Server 2008. Example of performance highlight and resource page http://www.microsoft.com/sqlserver/2008/en/us/performance-scale.aspx&#160;&#160; (includes overview, plus links to benchmark results, papers, and more)
Oracle. Benchmark result pageshttp://www.oracle.com/solutions/performance_scalability/index.html
Microsoft SQL Server 2008. Benchmark result pages http://www.microsoft.com/sqlserver/2008/en/us/benchmarks.aspx
Microsoft SQL Server 2005. Benchmark result pages http://www.microsoft.com/sqlserver/2005/en/us/benchmarks.aspx
Microsoft SQL Server 2003. Benchmark [...]]]></description>
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		</item>
		<item>
		<title>SQL Server 2008 Tunings</title>
		<link>http://performancewiki.com/wordpress/main/sql-server-2008-tunings</link>
		<comments>http://performancewiki.com/wordpress/main/sql-server-2008-tunings#comments</comments>
		<pubDate>Thu, 10 Dec 2009 19:44:07 +0000</pubDate>
		<dc:creator>info</dc:creator>
		
		<category>Uncategorized</category>

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		<description><![CDATA[SQL Server 2008 Tuning
For an OLTP workload, start with the following advanced SQL Server 2008tuning recommendations. Some are from Microsoft, others are just good practices. Run these as queries in the Microsoft SQL Server Management Studio UI:
USE masterEXEC sp_configure &#8217;show advanced options&#8217;, 1RECONFIGURE WITH OVERRIDE
(the above must be run first before any advanced tuning parameters [...]]]></description>
		<wfw:commentRss>http://performancewiki.com/wordpress/main/sql-server-2008-tunings/feed/</wfw:commentRss>
		</item>
		<item>
		<title>DB2 SQL5043N Error on start</title>
		<link>http://performancewiki.com/wordpress/main/db2-sql5043n-error-on-start</link>
		<comments>http://performancewiki.com/wordpress/main/db2-sql5043n-error-on-start#comments</comments>
		<pubDate>Wed, 09 Dec 2009 21:00:24 +0000</pubDate>
		<dc:creator>info</dc:creator>
		
		<category>Uncategorized</category>

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		<guid isPermaLink="false">http://performancewiki.com/wordpress/main/db2-sql5043n-error-on-start</guid>
		<description><![CDATA[
bash-3.00# db2start05/15/2007 15:01:59&#160;&#160;&#160;&#160; 0&#160;&#160; 0&#160;&#160; SQL5043N&#160; Support for one or more communications protocols failed to start 
successfully. However, core database manager functionality started successfully.SQL1063N&#160; DB2START processing was successful.
look into db2diag.log:
2007-05-15-15.01.58.846394-420 E92034A447&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; LEVEL: ErrorPID&#160;&#160;&#160;&#160; : 405708&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; TID&#160; : 1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; PROC : db2sysc 0INSTANCE: db2inst1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; NODE :
 000FUNCTION: DB2 UDB, common communication, sqlcctcpconnmgr, probe:50MESSAGE : ADM7006E&#160; The [...]]]></description>
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		</item>
		<item>
		<title>Boost performance by 60% with WebSphere Servlet Caching</title>
		<link>http://performancewiki.com/wordpress/main/boost-performance-by-60-with-websphere-servlet-caching</link>
		<comments>http://performancewiki.com/wordpress/main/boost-performance-by-60-with-websphere-servlet-caching#comments</comments>
		<pubDate>Mon, 07 Dec 2009 18:55:52 +0000</pubDate>
		<dc:creator>info</dc:creator>
		
		<category>Uncategorized</category>

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		<guid isPermaLink="false">http://performancewiki.com/wordpress/main/boost-performance-by-60-with-websphere-servlet-caching</guid>
		<description><![CDATA[
An excellent tuning paper on IBM&#8217;s developerWo=
rks on the topic of Servlet Caching:
Servlet caching
=0A=0A
WebSphere Application Server=E2=80=99s DynaCache pro=
vides a general in-memory=0A                caching service for objects and=
 page fragments generated by the server.=0A         [...]]]></description>
		<wfw:commentRss>http://performancewiki.com/wordpress/main/boost-performance-by-60-with-websphere-servlet-caching/feed/</wfw:commentRss>
		</item>
		<item>
		<title>High performance message-driven beans</title>
		<link>http://performancewiki.com/wordpress/main/high-performance-message-driven-beans</link>
		<comments>http://performancewiki.com/wordpress/main/high-performance-message-driven-beans#comments</comments>
		<pubDate>Wed, 02 Dec 2009 20:21:36 +0000</pubDate>
		<dc:creator>info</dc:creator>
		
		<category>Uncategorized</category>

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		<guid isPermaLink="false">http://performancewiki.com/wordpress/main/high-performance-message-driven-beans</guid>
		<description><![CDATA[
An article on IBM&#8217;s developerWorks web sites shows some tips on tuningmessage-driven beans. In particular, a simple math model was given as follows:
&#8220;We can build a simple mathematical model of the behaviour of concurrent MDB usage:
If we expect a transaction under normal circumstances to take t seconds to complete, and we have a target throughput [...]]]></description>
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