WebSphere Portal and Lotus Web Content Management 6.1.x Performance Tuning Guide

This guide provides a basis for parameter and application tuning for IBM® WebSphere® Portal for Multiplatforms Version 6.1.X. Remember that both tuning and capacity are affected by many factors, including the workload scenario and the performance measurement environment. For tuning, the objective of this paper is not to recommend that you use the values we used when measuring our scenarios, but to make you aware of those parameters used in our configuration. When tuning your individual systems, it is important to begin with a baseline, monitor the performance metrics to determine if any parameters should be changed and, when a change is made, monitor the performance metrics to determine the effectiveness of the change.

This updated version of the tuning guide for WebSphere Portal 6.1/6.1.0.X. This update includes newly added tuning sections for z/OS, Solaris, Oracle and much more.

Performance tuning overview

Tuning a WebSphere Portal environment involves tuning and configuring the various systems and components of the environment. This chapter discusses some general concepts and details the specifics of the configuration used in our measurement environments. These specifics entail:

Configuring the application server and the resources defined for that application server
Tuning the database(s) and database server
Tuning the directory server and its database
Tuning the web server and/or proxy server
Tuning the operating system and network
Tuning the WebSphere Portal services

When tuning your individual systems, it is important to begin with a baseline, monitor the performance metrics to determine if any parameters should be changed and, when a change is made, monitor the performance metrics to determine the effectiveness of the change.

In addition to the tuning changes we made in our measurement environments, there are some additional tuning options available which can improve performance in certain circumstances; these will be discussed in a separate section.

PDF edition of the original content without community updates and comments.

     Environment considerations

     Base portal tuning

     Tuning for Web 2.0 theme

     Tuning for many portal pages

     Tuning for Lotus Web Content Management

     Tuning composite applications

     Tuning a cluster environment

     Additional performance tuning

     WebSphere Portal caches

        Example scenarios

     Lotus Web Content Management caches

     Appendix A. References

     Appendix B. Contributors

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Appendix C. PDF edition of original content

DeAnna Steiner
November 24, 2009
Tags: PDF

A printable version of the original content is available. This PDF does not include any subsequent changes of updates made to the wiki articles.

Appendix B. Credits (Tuning Guide 6.1.x)

DeAnna Steiner
November 23, 2009

Contributors to the Tuning Guide

Appendix A. References (Tuning Guide 6.1.x)

DeAnna Steiner
November 23, 2009

The following references were used when developing the WebSphere Portal and Lotus Web Content Management 6.1.x Performance Tuning Guide:

Lotus Web Content Management caches (Tuning Guide 6.1.x)

DeAnna Steiner
November 22, 2009
Tags: item caching, basic caching, menu, library, navigator, session cache, item, user cache, 6.1.x

This chapter describes the Web Content Management caches and the general parameters for those caches.

WebSphere Portal caches example scenarios (Tuning Guide 6.1.x)

DeAnna Steiner
November 22, 2009
Tags: caches, portal caches, many pages

This section describes some example usage scenarios along with descriptions of possible cache settings and suggested cache sizes. This discussion may be useful as starting point for the caches in your environment.

WebSphere Portal caches (Tuning Guide 6.1.x)

DeAnna Steiner
November 22, 2009
Tags: cache, cache instance, 6.1.x, model, policy, wsrp, virtual portal, access control, url mappings, collaboration service, datastore

In the preceding chapter we described the specific values we modified for the IBM® WebSphere® Portal caches in our environments. This chapter describes the WebSphere Portal caches, the general parameters for those caches, which cache instances WebSphere Portal v6.1 provides, and, finally, some ...

Additional portal tuning options (Tuning Guide 6.1.x)

DeAnna Steiner
November 22, 2009
Tags: portal startup, dynamic content features, user attributes, network considerations, 6.1.x
1 comment

In addition to the scenarios discussed above, IBM174; WebSphere174; Portal has some other tuning options which may be useful in specific scenarios.

Tuning a cluster environment (Tuning Guide 6.1.x)

DeAnna Steiner
November 22, 2009
Tags: thread pools, transport buffer, dynacache, horizontal cluster, cluster, session persistence, 6.1.x
1 comment

The Base Portal Scenario is measured in a threenode horizontal cluster environment, with or without session persistence, and sixmembers vertical cluster environment. In general, the same tuning that was used for the Base Portal Scenario was used for cluster.

Tuning composite applications (Tuning Guide 6.1.x)

For the Composite Application Infrastructure scenario, we started with the tuning given in the Base Portal Scenario above. However, the Composite Application Infrastructure scenario accesses a large number of applications, and therefore a large number of pages and portlets. Therefore there is ...

Tuning Lotus Web Content Management (Tuning Guide 6.1.x)

DeAnna Steiner
November 22, 2009
Tags: JCR text search, DB2 tuning, cache tuning, Web Container threads
3 comments

In general, the same tuning that was used for the Base Portal Scenario was used for the IBM174; Lotus174; Web Content Management authoring, rendering and API Scenario. The main differences are to the cache tuning settings: Lotus Web Content Management increases demands on the portal access ...

Tuning for many portal pages (Tuning Guide 6.1.x)

DeAnna Steiner
November 22, 2009
Tags: cache manager service, DB2 database tuning, release database, 6.1.0, 6.1.x

The Many Pages Scenario, derived from the Base Portal Scenario, measures the effects of having larger numbers of pages visible to the users. Because the scenario is derived from the Base Portal Scenario, the same tuning that was used for the Base Portal Scenario applied for the Many Pages ...

Tuning the Web 2.0 Theme (Tuning Guide 6.1.x)

DeAnna Steiner
November 22, 2009
Tags: JVM initial heap size, JVM maximum heap size, caching proxy tuning, Web server tuning, Web 2.0 theme, portlet caching, navigator service properties, Internet Explorer support of vary header

In the Web 2.0 theme environment a reverse proxy was used to cache content outboard of IBM® WebSphere® Portal. The reverse proxy was set up to take advantage of the fact that portlet fragments are fetchable and cacheable. This avoids having to refetch the entire portal page in many ...

Environment considerations (Tuning Guide 6.1.x)

DeAnna Steiner
November 20, 2009
Tags: 32-bit JVM, 64-bit JVM, multithreading, hyper-threading, simultaneous multithreading

Before beginning your installation of WebSphere Portal consider whether to use 32bit or 64bit JVMs and evaluate hardware multithreading benefits.

Base portal tuning (Tuning Guide 6.1.x)

DeAnna Steiner
November 20, 2009
Tags: heap size, JVM Large Page, physical memory, JVM Heap New Area, Web container thread pool, session timeout, ORB Service, initPoolSize, prefPoolSize, maxPoolSize, cache
2 comments

This scenario illustrates the tuning configuration done on the base portal after the installation is complete. Depending on your desired configuration, additional tuning may be required, but this scenario reflects the essential tuning that should be done on all installation.

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