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Tuning Kernel Settings for Oracle Solaris

This topic is part of Tuning Siebel Business Applications for Oracle Solaris.

To run Siebel Servers or Web servers in an Oracle Solaris environment, you need to set Oracle Solaris kernel parameters to specific recommended values for particular releases of Oracle Solaris servers. To learn the specific parameter recommendations for Siebel Servers or Web servers running on Oracle Solaris, contact Oracle's Application Expert Services. Contact your Oracle sales representative for Oracle Advanced Customer Services to request assistance from Oracle's Application Expert Services.

Several Oracle Solaris kernel parameter settings significantly affect performance of Siebel Business Applications in general, and the Siebel Server in particular.

Oracle Solaris kernel parameters reside in the configuration file /etc/system. To change the settings for these parameters, you must manually edit this file, save your changes, and reboot the system.

Normally, the Oracle Solaris kernel memory parameter settings are relatively low. However, for large memory-model applications like the Siebel Server applications, it is recommended that you increase the values assigned to several of these parameters.

CAUTION:  If you use the default Oracle Solaris kernel parameters, or lower, to run a Siebel Server in an Oracle Solaris environment, then there is a risk of serious performance problems, resulting in SIGABRT or SIGSEV errors for some Siebel Server components.

To tune the Oracle Solaris kernel settings for Siebel Server

1. Using an editor such as vi, open the /etc/system file for editing.
2. Add or modify the following lines, which are general settings:

   set rlim_fd_cur = 65536
   set rlim_fd_max = 65536
   set kernel_cage_enable = 1

3. Save your changes and exit the editor.
4. Restart the server computer to have the new settings take effect.