Our mixed performance test is conducted in the same manner as our sequential tests, but once the drive is conditioned we run our test profile to look at performance in various read/write states. We start the test with 100% reads and then add write data into the mix in 10% increments until we end up with no reads at all in the workload.
Both Samsung SSD 750 EVO drives started out great in our 128KB sequential mixed workload test with 100% reads, but the performance drops off as writes are added. The performance was great at 100% and 90% reads, but once we got to the 80/20 read/write test the performance dropped off significantly and never fully came back. As the write workload got heavier the 250GB drive continued to perform better.
Let’s take a look at temperatures!