Quote Originally Posted by johnw View Post
Unless you want ASU to cater to Enterprise users, it would be a bad idea to base the defaults on database writes, since very few non-Enterprise users have a lot of database writes to their SSDs.

For typical non-Enterprise users, the best thing to use for a benchmark to correspond to day-to-day usage is 100% incompressible / random data. That should be the default. If you start arbitrarily choosing "randomness" of less than 100%, then your benchmark will be arbitrary and not suitable for objective comparisons. There is a reason why the SNIA tests specify random data. It is fine to have a choice, but the default should be 100% incompressible.
The default won't be Database, I've just not decided.

100% would be worst case for the SF based drives and I'm not sure that it's fair vs other non compressing controllers, there is a portion of compressible data in any workload and real life tests show that SF drives are generally as fast and sometimes faster than most drives. (up till now that is)

So it will be in the range of 46-100%.

Where does SNIA say that random data means incompressible data?