Caching: Use a high performance disk system for the cache directory, such as tempfs on Linux.
You can improve the speed of adding files to cache and retrieving them from cache if you turn off gathering cache statistics. Click Devices > Access Gateways > Edit > Advanced Options and add the following command:
DiskCacheMonitorStats off
SSL Terminator: Install an SSL terminator between the browsers and the Access Gateway. This reduces the amount of rewriting required when the browsers are using SSL and the Web servers protected by the Access Gateway aren’t configured for SSL.
Click Devices > Access Gateways > Edit > Reverse Proxy / Authentication. Enable the Behind Third Party SSL Terminator option.
SSL Cipher Suites: Use the advanced options from Apache to set the cipher suites that you want to allow. Some cipher suites take longer than others to process.
For more information, see “SSLCipherSuite Directive”.
Statistics: If additional performance is desired and statistics are not important, you can unload the mod_status module. If you unload the mod_status module, the extended information is also not gathered.
To unload the module, open the httpd.conf file in the apache directory, and add a comment symbol (#) to the line that loads the mod_status module in the Load Module section.
If you turn on debug mode, the mod_status module is automatically loaded in order to gather as much information as possible.