The main JSP optimization which can be done is precompilation of JSPs. However, this might not be possible (for example, when using the jsp-property-group feature) or practical, in which case the configuration of the Jasper servlet becomes critical.
When using Jasper 2 in a production Tomcat server you should consider making the following changes from the default configuration.
development – To disable on access checks for JSP pages compilation set this to false.
genStringAsCharArray – To generate slightly more efficient char arrays, set this to true.
modificationTestInterval – If development has to be set to true for any reason (such as dynamic generation of JSPs), setting this to a high value will improve performance a lot.
trimSpaces – To remove useless bytes from the response, set this to true.
