Needless to say despite my having upgraded and ironing out kinks with issues, my Drupal installation is now out of date since yesterday. I upgraded my previous installation 5.2 to 5.10, over this last week. Under very little load the site seemed marginally slower, now that the upgrade site is live to the world, it's bogged down with hits.
The frontpage of the site is taking an excruciating long period of time to load... to be exact: 12273.23 ms (painful I know)
Here is what I have done
1. Increased php memory from 32MB to 64MB, the server has plenty, so this didn't seem like a huge leap for me, I even went higher, but things seem to get even worse with more memory (perhaps because of swapping)
2. I have gone into my logs, and tried to resolve any outstanding errors that may be occurring.
3. Disabled modules I know I am not using right now, Forum, Statistics, and a few others.
There are 2 functions of my site I think are big killers here, and that is the calendaring (calendar, cck, date), and the image gallery (image, imageapi, imagecache)
Here is a rundown of devel on the frontpage of the site (almost every other line, if not more, gets marked red btw):
40.49 1 drupal_lookup_path SELECT COUNT(pid) FROM url_alias
17.06 1 drupal_lookup_path SELECT src FROM url_alias WHERE dst = 'frontpage'