Version: ?
Whetstone is the opposite of Dhrystone and instead of integer performance it tests floating point performance. This is why CPU's without a FPU or a decent FPU score very low. For example and as seen in the benchmarks: a 386DX25 with FPU installed can easily beat a 486SX2/50 with a big margin.
The scores noted are 'MFLOPS'. The benchmark will provide a series of calculations done (N1 to N8) and sum up the MFLOPS.