Re: BBpress faster than WordPress
Yes when you rebuild PHP to a new version you must rebuild the eaccelerator module, that’s a good tip.
Also sometimes after a rebuild you need to clear the eaccelator disk cache which is usually stored in tmp or you might have specified somewhere else in the php.ini settings.
techypenguin, mysql speed is not related to eaccelerator but mysql’s own cache.
If you are going by the time showed inside bbpress pages, that’s misleading as it shows the number of queries but the entire page generation time, not mysql query time. If you want to see the breakdown, install my bb-benchmark plugin.