HP-UX Directory Server 8.1 administrator guide

16 Tuning Directory Server performance
This chapter describes the tools provided with HP-UX Directory Server to help optimize
performance. It also provides tips to improve the performance of the directory.
Topics include:
• “Tuning server performance” (page 537)
• “Tuning database performance” (page 537)
• “Managing special entries” (page 541)
16.1 Tuning server performance
The server's performance can be managed and improved by limiting the amount of resources
the server uses to process client search requests, which is done by defining four settings:
• The maximum number of entries the server returns to the client in response to a search
operation (size limit attribute).
• The maximum amount of real time (in seconds) for the server to spend performing a search
request (time limit attribute).
• The time (in seconds) during which the server maintains an idle connection before terminating
it (idle timeout attribute).
• The maximum number of file descriptors available to the Directory Server (max number of
file descriptors attribute).
To configure Directory Server to optimize performance:
1. In the Directory Server Console, select the Configuration tab, then select the topmost entry
in the navigation tree in the left pane.
The tabs that are displayed in the right pane control server-wide configuration attributes.
1. Select the Performance tab in the right pane.
The current server performance settings appear.
2. Set the maximum number of entries the server will return to the client in response to a search
operation by entering a new value in the Size Limit text box.
To keep from setting a limit, type -1 in this text box.
3. Enter the maximum amount of real time (in seconds) for the server to spend performing a
search request in the Time Limit text box.
To keep from setting a limit, type -1 in this text box.
4. Enter the time (in seconds) for the server to maintain an idle connection before terminating
it in the Idle Timeout text box.
To keep from setting a limit, type zero (0) in this text box.
5. Set the maximum number of file descriptors available to the Directory Server in the Max
Number of File Descriptors text box.
For a better understanding of how these parameters impact the server's search performance, see
“About indexes”.
16.2 Tuning database performance
This section is divided into the following parts that describe methods for tuning database
performance:
• “Optimizing search performance”
• “Tuning transaction logging”
16.1 Tuning server performance 537