How do I tune performance?

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Each WebSphere Application Server process has several parameters influencing application performance. Tune application server performance

The Performance Advisor in Tivoli Performance Viewer (TPV) provides advice to help tune systems for optimal performance and gives recommendations on inefficient settings by using collected Performance Monitoring Infrastructure (PMI) data. Obtain performance tuning advice (TPV, Performance Advisor)

When accessing any database, establishing connections is an expensive operation. Connection pooling enables administrators to establish a pool of database connections that applications can share on an application server. When connection pooling capabilities are used, performance improvements up to 20 times the normal results are realized. Pool database connections

The dynamic cache service improves performance by caching the output of servlets, commands, and JSP files. Cache application output