For some reason Total Cache does seem to be caching my pages.
Each time I got to a page, when I view source, the Total Cache comment shows that it regenerated the page for this request.
What worse, it seems to be regenerating the combined/minified css and js files for each request as well! This alone adds another 5sec to the already 4sec the page takes to load.
So I turned on debugging and this is what I am seeing:
W3 Total Cache: Page cache debug info: Engine: disk: basic Cache key: w3tc_site.com_1_page_e251273eb74a8ee3f661a7af00915af1 Caching: disabled //PROBLEM Reject reason: Requested URI is rejected //PROBLEM Status: not cached //PROBLEM Creation Time: 0.634s Header info: X-Pingback: http://site.com/xmlrpc.php Content-Type: text/html; charset=UTF-8 X-Powered-By: W3 Total Cache/0.9.2.4 Performance optimized by W3 Total Cache. Learn more: http://www.w3-edge.com/wordpress-plugins/ Minified using disk: basic Database Caching 6/6 queries in 0.011 seconds using disk: basic Object Caching 608/613 objects using disk: basic Served from: site.com @ 2011-09-18 17:47:24
Any ideas what could be going on hear?
For the record, if it makes a difference, the site is being hosted on IIS 7.5.