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Tune the Shared Memory Segments

If you install an Apache or Sun Java System Web Agent on Solaris or HP-UX systems, you must tune the operating system's shared memory settings for the Web Agent to function correctly. By increasing the operating system's shared memory segments, you improve the performance of the Web Agent. The variables that control shared memory segments are defined in the operating system's specification file.

For AIX operating systems, you must run the following command before starting an Apache server:

export EXTSHM=ON

Note: You may need to tune the shared memory segments if you are using Linux. For more information about the shared memory segments and how to tune them, see the documentation for your particular operating system.

To increase shared memory segments

  1. Follow the appropriate procedure for your operating system:
  2. Modify the shared memory variables using one of the following methods:
  3. Save your changes then exit the file or the utility.
  4. Reboot the system.
  5. Verify your changes by entering the command:
    $ sysdef -i
    


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