Sorry for possible double post : I moved this question from stackoverflow, since it fits better here.
I use Amazon EC2 as my working machine, which is all dandy. But I also need to run CPU intensive benchmarks and here EC2 is not suited, since the hardware can change between instance boots. I have seen as much as 20-30% variation from day to day in very bad cases, but generally the performance is reasonable similar.
Do you know of any cloud which would guarantee consistence performance ?