[rt-users] Performance issues with 3.6.6 upgrade

[Rob Ansaldo]

We're testing an upgrade from 3.6.4 to 3.6.6 and have noticed that
interactive response time on 3.6.6 is much slower than 3.6.4. Using the
exact same hardware, OS, and MySQL db - most screens (ie; at a glance,
ticket display) take less than 0.5 seconds when using 3.6.4 and 3 or
more seconds on 3.6.6. 

We're using CentOS 5.1, perl 5.8.8, apache 2.2.3, MySQL 5.0.22. 

Any suggestions on where to start in troubleshooting this?