Sun Microsystems Portal Server 6 - Manual (Page 143)

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Appendix B
Analysis Tools
The Sun Java™ Enterprsie System and SDK include default setting options to
ensure a satisfactory out-of-the-box experience. However these options might not
provide optimal performance for your web applications in the Sun Java System
Portal Server production environment. This section describes some alternative
options and basic tuning techniques.
Table B-1 below lists the performance analysis tools that will help in providing
feedback for tuning the Portal Server and its web container. In addition to
performance issues, many of these tools can be used to detect other types of
bottlenecks at the overall operating system level.
Many tool descriptions provide sample output, suggestions for interpreting output
results, tips on improving output results, and links to related sites.
NOTE The tuning settings discussed in this section focus on Portal Server residing
on the Solaris platform. However, the principles can be applied to other
generic Unix type operating systems.
Table B-1 Performance Analysis Tools
Category Type Name Parameters Usage
Analysis Tool Solaris 8 and Solaris 9 mpstat CPU utilization
iostat Disk I/O
subsystem
netstat Network
subsystem
-I hme) 10 Interface
bandwidth
-sP tcp TCP kernel module