As you can see from the graph, the CentOS forum at its current size would run acceptably well (taking into account running on a better-tuned system than my thrown together test system... for instance my Xeon server with CentOS runs Drupal vastly faster than my laptop). With caching added (which I'm seeking out the best solution for in my post) it should perform great. I'll be personally investing funds/resources to ensure the slow queries are fixed by D7, eliminating the "necessity" of caching.
Drupal forum performance test results
I've completed my performance testing. I hope this is helpful: http://drupal.org/node/314443
As you can see from the graph, the CentOS forum at its current size would run acceptably well (taking into account running on a better-tuned system than my thrown together test system... for instance my Xeon server with CentOS runs Drupal vastly faster than my laptop). With caching added (which I'm seeking out the best solution for in my post) it should perform great. I'll be personally investing funds/resources to ensure the slow queries are fixed by D7, eliminating the "necessity" of caching.
Hope this helps :)