I’ve just put another round of optimizations into the system. In this case caching the p-code generated by php into shared memory This should usually result in faster page display where content is changing rapidly. Posts with fast growing comments should get the major benefit from this. This should allow the site to run on its existing hardware for quite a while without the trauma of hardware upgrades.
This should be the last of the back-end optimization updates. The next round of updates will concentrate more on usability.