Network performance

The network design, hardware resources, and traffic pressure often have a significant effect on the performance of e-business applications. You can use this topic for information on how to optimize network performance, and tune server communication resources.

The network often plays a major role in the response time for web applications. Moreover, the performance impact for network components is often complex and difficult to measure because network traffic and the available bandwidth may change frequently and are affected by influences the system administrator may not have direct control over. However, there are several resources available to help you monitor and tune the communication resources on your server.

Refer to the following topics for more information:

Collection Services

Collection Services collects performance data for communication resources at regular intervals. Of particular interest, the performance data files QAPMTCP and QAPMTCPIFC store information about TCP servers. You can reference this data by querying the files directly, or by using the reports included in the Performance Tools licensed program.

System monitor

You can use the system monitors to provide information about how system resources, including communications hardware, are being used on a system. In particular, the line utilization and IOP metrics within the system monitor can provide valuable data about network performance.

Track performance

Several applications and tools allow you to routinely collect performance data for communication resources on the system and to monitor their performance over time.

iSeries™ Performance Capabilities Reference

The Performance Capabilities Reference provides detailed information, reports and examples that can help you configure or tune your server for optimal performance. In particular, see Chapter 5: "Communications Performance" to help you plan for and manage communication resources.

SystemiNetwork.com

This Web site hosts many resources for optimizing your network plan and resources. In particular, refer to the articles "Cultivate your AS/400^® Networks" and "8 tools for better network performance."

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Related concepts
Collection Services Tracking performance