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 until we get to 100% writes, in 10% increments. We believe this will be the next major area SSD manufactures will address after performance consistency.
Sequential Mixed Workload Bandwidth
Since SATA drives are not able to read and write from the host at the same time, the drives have to manage requests and prioritize the IO. In the 1TB class of drives, the SanDisk Extreme PRO performs the best across the mix, the Samsung 850 Pro does well in the middle mix, but in heavy reads with light writes, the Corsair Neutron XT comes in just behind the Extreme PRO.
This test uses a 50% mix of compressible and incompressible data so the S10's compressible data magic is ineffective here.
Sequential 80% Read / 20% Write Bandwidth
Here we see the 80% read / 20% write mix, the load Intel stated is typical for consumer environments in an older document that discusses the topic in detail.
Random Mixed Workload Response Time
In this test, we look at 50% reads / 50% writes, but with random data at increasing queue depths. What surprises us here is that the Neutron XT does really well in all three capacity sizes. We normally see 240GB drives take a big hit in this test, but not this drive.
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