Quote Originally Posted by johnw View Post
SNIA got this exactly right with their SSS enterprise AND consumer ("client") tests -- a random data stream is mandatory for both enterprise AND consumer tests.

http://www.snia.org/tech_activities/..._standards/pts
So how does one go about testing an SSD to SNIA standards. I mean, it is great to have standard and the SNIA tests look fairly comprehensive ... but without a means of carrying out the tests, and with nobody doing these tests, it is all a bit academic at the moment.

But I do feel that for at least sandforce drives, all compression levels are worth looking at, because all will appear in typical workloads. Few workloads will persistantly and consistantly present an incompressable or 0-fill load, so it is good to see how performance graduates between fully compressable and fully incompressible.