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
As mentioned in the introduction, we haven't tested a lot of 128GB class SSDs this year. Some manufacturers have even started to phase out this capacity from the product lineup. Consequently, two of our newest tests only have two products to show, the Patriot Blaze 120GB that we're reviewing next month, and the Torch.
Both drives use the Phison S9 controller, and 16nm flash. The Torch does a bit better here, but both drives are rubbish for mixed read / write workloads.
Sequential 80% Read / 20% Write Bandwidth
The 80% read with 20% write mix is closer to what consumers work under, although not always in a steady state, the way this test is performed. Both results are significantly less than what we find on even the most modest consumer SSD designed for mainstream users.
Random Mixed Workload Response Time
To put the mixed IO performance into full frame, we tested the Samsung 850 Pro 128GB, one of the best 128GB class SSDs on the market today, with mixed IO to show just how far the Torch is behind.
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- Page 1 [Introduction & Specifications, Pricing, and Availability]
- Page 2 [Patriot Torch 120GB SSD]
- Page 3 [Test System Setup and Initial Performance]
- Page 4 [Benchmarks - Sequential Performance]
- Page 5 [Benchmarks - Anvil Storage Utilities]
- Page 6 [Benchmarks - Mixed Read / Write Workloads]
- Page 7 [PCMark 8 Consistency Test]
- Page 8 [PCMark 8 Consistency Test - Continued]
- Page 9 [Final Thoughts]