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 server.
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 server 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.
- iSeriesNetwork.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."