Tuning involves adjusting application code, configurations, and system settings to improve performance.
To help administrators identify and maximize tuning opportunities, the product provides tools to suggest performance improvements.
Performance
Advisors
IBM WebSphere
Application Server includes two performance advisors to help tune systems
for optimal performance. Both advisors use the PMI data to suggest configuration
changes to Object Request Broker (ORB) service thread pools, Web container
thread pools, connection pool size, persisted session size and time, prepared
statement cache size, and session cache size. The Runtime Performance Advisor
runs in the application server process, while the other advisor runs in the
Tivoli Performance Viewer (TPV). The following summary chart outlines the
difference between the two advisors. For more information, see the articles, Using the Runtime Performance Advisor and Using the Performance Advisor in Tivoli Performance Viewer.
Runtime Performance Advisor | Performance Advisor in Tivoli Performance Viewer (TPV) | |
Location of execution | Application server | TPV client |
Location of tool | Administrative console | TPV |
Output | SystemOut.log file and WebSphere run-time messages in WebSphere status panel in the administrative console | TPV graphical user interface (GUI) |
Frequency of operation | Every 10 seconds in background | When you select refresh in TPV |
Types of advice |
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