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<title>IBM developerWorks : AIX : Articles</title>
<link>http://www.ibm.com/developerworks/</link>
<description>The latest content from IBM developerWorks</description>
<pubDate>02 Dec 2009 03:04:21 +0000</pubDate>
<language>en</language>
<copyright>Copyright 2004 IBM Corporation.</copyright>
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<title>developerWorks</title>
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<link>http://www.ibm.com/developerworks/</link>
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	<item>
		<title><![CDATA[Optimizing AIX 5L performance: Monitoring your CPU, Part 1]]></title> 
		<description><![CDATA[Just when you thought it was going to be an ordinary day, you receive a
      phone call and hear the worst six words dreaded by most AIX(R) administrators. Which
      of course is, &quot;Why is the system so slow?&quot; If you have done your homework, the
      answer to that question is relatively simple.]]></description> 
		<link><![CDATA[http://www.ibm.com/developerworks/aix/library/au-aixoptimization/index.html?ca=drs-]]></link> 
		<pubDate>17 Apr 2007 04:00:00 +0000</pubDate>               
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		<title><![CDATA[Optimizing AIX 5L performance: Monitoring your CPU, Part 2]]></title> 
		<description><![CDATA[Identify which AIX(R) tools to use to monitor your Central Processing Unit
      (CPU) for a given situation and find out why some tools might be better than others.
      Part 1 of this series discussed the tuning methodology and the importance of having
      procedures for CPU performance tuning. It also briefly introduced some performance
      tools to use as a part of your tuning repertories, gave an overview of the POWER
      CPU, and discussed how the architectural improvements of the evolution of the POWER
      Chip have contributed to the hardware improvements of the System p(TM) product line.]]></description> 
		<link><![CDATA[http://www.ibm.com/developerworks/aix/library/au-aixoptimization2/index.html?ca=drs-]]></link> 
		<pubDate>24 Apr 2007 04:00:00 +0000</pubDate>               
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		<title><![CDATA[Optimizing AIX 5L performance: Tuning network performance, Part 3]]></title> 
		<description><![CDATA[This three-part series on AIX (R) networking focuses on the challenges of
      optimizing network performance. Part 1 
      provided a networking overview and also
      discussed the tools you need to monitor your hardware, including netstat, netpmon,
      entstat, and nmon.  Part 2 discussed monitoring and tuning NFS subsystems. This final
      part, Part 3, shows you how to monitor network packets. The series also offers best
      practices for network I/O performance tuning.]]></description> 
		<link><![CDATA[http://www.ibm.com/developerworks/aix/library/au-aixoptimization-netperform3/index.html?ca=drs-]]></link> 
		<pubDate>29 Jan 2008 05:00:00 +0000</pubDate>               
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	<item>
		<title><![CDATA[Optimizing AIX 5L performance: Tuning network performance, Part 2]]></title> 
		<description><![CDATA[This three-part series on AIX (R) networking focuses on the challenges of
      optimizing network performance. Part 1provided a networking overview and also
      discussed the tools you need to monitor your hardware, including netstat, netpmon,
      entstat, and nmon. Part 2 focuses on tuning NFS. You&apos;ll learn about monitoring
      utilities such as nfsstat and nmon, and you&apos;ll also tune with nfso. The series also
      offers best practices for network I/O performance tuning.]]></description> 
		<link><![CDATA[http://www.ibm.com/developerworks/aix/library/au-aixoptimization-netperform2/index.html?ca=drs-]]></link> 
		<pubDate>22 Jan 2008 05:00:00 +0000</pubDate>               
	</item>

	<item>
		<title><![CDATA[Optimizing AIX 5L performance: Tuning network performance, Part 1]]></title> 
		<description><![CDATA[This three-part series on AIX(R) networking focuses on the challenges of
      optimizing network performance. In the first installment, you’ll review some best
      practices for network configuration, and utilize those practices for efficient
      monitoring of your hardware by taking advantage of network tools such as netstat,
      netpmon, entstat, and nmon. You’ll also examine certain tools used to look at your
      interfaces to see how to configure them.]]></description> 
		<link><![CDATA[http://www.ibm.com/developerworks/aix/library/au-aixoptimization-netperform1/index.html?ca=drs-]]></link> 
		<pubDate>20 Nov 2007 05:00:00 +0000</pubDate>               
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	<item>
		<title><![CDATA[Optimizing AIX 5L performance: Tuning disk performance, Part 3]]></title> 
		<description><![CDATA[Part 3 of this series covers how to improve overall file system performance,
      how to tune your systems with the ioo command, and how to use the filemon and
      fileplace utilities.]]></description> 
		<link><![CDATA[http://www.ibm.com/developerworks/aix/library/au-aixoptimization-disktun3/index.html?ca=drs-]]></link> 
		<pubDate>09 Oct 2007 04:00:00 +0000</pubDate>               
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	<item>
		<title><![CDATA[Optimizing AIX 5L performance: Tuning disk performance, Part 2]]></title> 
		<description><![CDATA[Discover how to use appropriate disk placement prior to creating your
      logical volumes to improve disk performance. Part 2 of this series focuses on
      monitoring your logical volumes and the commands and utilities (iostat, lvmstat,
      lslv, lspv, lsvg) used to analyze results.]]></description> 
		<link><![CDATA[http://www.ibm.com/developerworks/aix/library/au-aixoptimization-disktun2/index.html?ca=drs-]]></link> 
		<pubDate>24 Jul 2007 04:00:00 +0000</pubDate>               
	</item>

	<item>
		<title><![CDATA[Optimizing AIX 5L performance: Tuning disk performance, Part 1]]></title> 
		<description><![CDATA[Learn more about direct I/O, concurrent I/O, asynchronous I/O, and best
      practices for each method of I/O implementation. This three-part series on the
      AIX(R) disk and I/O subsystem focuses on the challenges of optimizing disk I/O
      performance. While disk tuning is arguably less exciting than CPU or memory tuning,
      it is a crucial component in optimizing server performance. In fact, partly because
      disk I/O is your weakest subsystem link, you can do more to improve disk I/O
      performance than on any other subsystem.]]></description> 
		<link><![CDATA[http://www.ibm.com/developerworks/aix/library/au-aixoptimization-disktun1/index.html?ca=drs-]]></link> 
		<pubDate>10 Jul 2007 04:00:00 +0000</pubDate>               
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	<item>
		<title><![CDATA[Optimizing AIX 5L performance: Tuning your memory settings, Part 2]]></title> 
		<description><![CDATA[Use ps, sar, svmon, and vmstat to monitor memory usage and analyze the
      results. This three-part series focuses on the various aspects of memory management
      and tuning on IBM System p(TM) servers running AIX(R). Part 1 provided an overview
      of memory on AIX, including a discussion of virtual memory and the Virtual Memory
      Manager (VMM). It also drilled down into the tuning parameters and outlined recent
      improvements in AIX Version 5.3 with respect to memory management. Part 2 focuses on
      the detail of actual memory subsystem monitoring and discusses how to analyze the
      results. Part 3 deals specifically on swap space and how best to tune your VMM
      settings to provide for optimum swap space configuration and performance. Throughout
      this series, I&apos;ll also cover some of the best practices of memory performance tuning
      and monitoring.]]></description> 
		<link><![CDATA[http://www.ibm.com/developerworks/aix/library/au-aixoptimization-memtun2/index.html?ca=drs-]]></link> 
		<pubDate>14 Jun 2007 04:00:00 +0000</pubDate>               
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	<item>
		<title><![CDATA[Optimizing AIX 5L performance: Tuning your memory settings, Part 1]]></title> 
		<description><![CDATA[This three-part series on memory tuning dives right into tuning parameters,
      focusing on the many challenges and the various best practices of optimizing memory
      performance, and it also discusses some improvements in AIX(R) Version 5.3. While
      memory tuning might be more difficult to implement than Central Processing Unit
      (CPU) tuning, it certainly is no less important. You can do more to tune memory on
      an AIX server than on any other subsystem. Changing some memory parameters on your
      system can increase performance dramatically, particularly when these parameters are
      not optimized for the environment which you are running. Part 1 of this series
      provides an overview of memory on AIX, including a discussion of virtual memory and
      the Virtual Memory Manager (VMM).]]></description> 
		<link><![CDATA[http://www.ibm.com/developerworks/aix/library/au-aixoptimization-memtun1/index.html?ca=drs-]]></link> 
		<pubDate>15 May 2007 04:00:00 +0000</pubDate>               
	</item>

	<item>
		<title><![CDATA[Optimizing AIX 5L performance: Monitoring your CPU, Part 3]]></title> 
		<description><![CDATA[Part 3 of this series focuses on arguably the least understood area of
      Central Processing Unit (CPU) performance tuning: controlling thread usage and CPU
      binding. This article addresses key tools and utilities you can use to analyze
      threads and administrate your processes.]]></description> 
		<link><![CDATA[http://www.ibm.com/developerworks/aix/library/au-aixoptimization3/index.html?ca=drs-]]></link> 
		<pubDate>15 May 2007 04:00:00 +0000</pubDate>               
	</item>

	<item>
		<title><![CDATA[Optimizing AIX 5L performance: Tuning your memory settings, Part 3]]></title> 
		<description><![CDATA[Get an introduction to swap (paging) space, learn how to configure and
      administer it, capture statistics, and tune your Virtual Memory Manager (VMM)
      settings to provide for optimum swap (paging) space configuration and performance.]]></description> 
		<link><![CDATA[http://www.ibm.com/developerworks/aix/library/au-aixoptimization-memtun3/index.html?ca=drs-]]></link> 
		<pubDate>19 Jun 2007 04:00:00 +0000</pubDate>               
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