I measured load times for a wordpress 2.9.2 install on apache 2.2.3 and I was intrigued by the long periods between connect and first byte for the css and image files.
Load Average is 0.0, 0.0, 0.0 and there is 150MB free RAM on the VPS. There are a few other VPSes on this box, with even more free RAM and underutilized CPU, that have the same issue. Sample Pingdom results are at http://imagebin.ca/img/6UaiOU.png
How do I gain insight into the possible causes of this problem and how would I troubleshoot it?