bbPress.org

That’s better but your query counts are still too high.

Way too high.

You could post the list of queries from bb-benchmark here and I can take a look at what’s causing that.

eAccelerator is probably the way too go.

It’s a tad slower than Xcache but it’s far more stable.

Assuming you are using a 2ghz+ cpu that is only lightly loaded, you should be seeing page render times around 100ms on an optimized setup with proper mysql and php opcode caches.