Indeed, I was talking about measuring performance. Even in alpha it might be usefull to compare systems with eachother so you can more easily find out where your bottlenecks are. Or for fun; to try and find the worst performing hardware that can still run the game
Performance measurements during the Alpha and most of the Beta are likely to be useless. Until the last few builds during the Beta we can expect SD to put in debugging code they need for debugging failures. This extra code will have an impact on performance.
They have, in the past, told us when the debugging code has been removed. That is when performance measurements will begin to be useful, not before.