Tuning transport channel services

The transport channel services manage client connections and I/O processing for HTTP and JMS requests. These I/O services are based on the non-blocking I/O (NIO) features that are available in Java™. These services provide a highly scalable foundation to WebSphere® Application Server request processing. Java NIO-based architecture has limitations in terms of performance, scalability, and user usability. Therefore, integration of true asynchronous I/O is implemented. This implementation provides significant benefits in usability, reduces the complexity of I/O processing, and reduces that amount of performance tuning you must perform.

About this task

Key features of the new transport channel services include:
  • Scalability, which enables the product to handle many concurrent requests
  • Asynchronous request processing, which provides a many-to-one mapping of client requests to web container threads
  • Resource sharing and segregation, which enables thread pools to be shared between the web container and a messaging service
  • Improved usability
  • Incorporation of autonomic tuning and configuration functions

Changing the default values for settings on one or more of the transport channels associated with a transport chain can improve the performance of that chain.

Figure 1. Transport Channel ServiceCommunication between core groups in the same cell

Procedure


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Timestamp icon Last updated: March 5, 2017 17:28
File name: tprf_tunechain.html