Technical data

2
Tuning Techniques
This chapter describes how to change system operation to solve specific
networking problems. Once you have diagnosed the cause of the problem, as
described in Chapter 1, use the information in this chapter to solve the problem.
The tuning techniques described in this chapter include:
• Modifying subsystem attributes (Section 2.1)
• Tuning server applications (Section 2.2)
• Solving server performance problems (solv_perf_probs))
2.1 Subsystem Attributes
TCP/IP Services supports UNIX subsystems and allows you to modify the
attributes of those subsystems to change the way the TCP/IP Services software
operates.
Subsystem configuration is provided for compatibility with UNIX systems. HP
strongly advises you not to modify the attributes associated with subsystems
except when the adjustment of an attribute is indicated (for example, to improve
performance). In most cases, corresponding TCP/IP management commands are
provided to help limit the side effects of modifying subsystem attributes.
The following sections describe how to display and modify the settings of the
subsystem attributes. Modifying subsystem attributes without full knowledge
of possible effects can cause unpredictable results and is recommended only as
specifically directed by HP.
2.1.1 Displaying Subsystems and Attributes
To display all the kernel subsystems and their status on the system, enter the
following commands:
Tuning Techniques 2–1