These are the number of calls for the Mysql from the Wikka Wikki files:
install.php 99 calls
wikka.class.php 26 calls
wikka.php 1 call
So far, install.php is having the greater number of calls to the PHP/Mysql. The smaller number of calls to the database is the most recommended in developing an Mysql based application as stated at http://www.webmasterworld.com/forum88/5922.htm
However, the install.php execution takes only once at the beginning of the installation of Wikka Wikki, so I think it will not takes too much computer processor and memory resources.
