Man1c M0g installed some software yesterday in an effort to alleviate some of the problems we have been seeing. The software did in fact help with server load, but there still seems to be a hangup. Here is his report:
This is wierd. I installed eaccelerator and the loads on the server have decreased massively. That said, it seems from the TOP map that many processes are just waiting, as if there is a throttle somewhere that’s limiting the number of processes and/or resources that the server can allocate to you. I’ll investigate further and see what I can dredge up...He will next try a manual reinstallation of some of the vBulletin components to see if one of them may be causing a problem.