Just in case you missed these posts....
Facebook has some interesting blogs on benchmarks, InnoDB and etc...
What is in the InnoDB buffer pool? 12/15/2011 02:14 PM
Dynamic padding for tpcc-mysql 11/21/2011 11:51 AM
The shutdown benchmark 11/15/2011 05:29 PM
The effect of page size on InnoDB compression 11/07/2011 11:40 AM
