Sequential Mixed Read / Write Workloads
In this series of tests, we measure mixed workload performance. We start with 100% read and then add data writes to the mix in 10% increments until we get to 100% writes. We believe this will be the next major area SSD manufacturers will address after performance consistency.
Sequential Mixed Workload Bandwidth
The low random performance may make it sound like the SF-2281 should be retired to the dustbin of history, but that's far from the case. In this test, we uses a 50% mix of compressible and incompressible data, and measure sequential performance with a mix or reads and writes. SATA can't read and write at the same time, but when multitasking, we ask our drives to read and write many items as fast as possible. The 530 Series allows you to read and write rapidly without slowing down significantly.
Sequential 80% Read / 20% Write Bandwidth
For consumer workloads, we use the 80% read and 20% write mark to test performance. Here we see the SF-2281 controlled drives have a significant advantage in this test.
Random Mixed Workload Response Time
In the random test, we use 50% reads and 50% writes, and scale the drives by queue depth. The lower random speeds of the 530 Series show up here, but as you can see, the results with mixed data are not as low as they were in comparison to the other drives in our previous random data queue depth scale test.
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