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Toshiba OCZ RC100 240GB & 480GB M.2 NVMe PCIe SSD Review (Page 8)

By Jon Coulter from Jun 12, 2018 @ 8:00 CDT
TweakTown Rating: 96%Manufacturer: Toshiba

70/30 Mixed Workload Test (Sledgehammer)

Version and / or Patch Used: Iometer 2014

Heavy Workload Model

This test hammers a drive so hard we've dubbed it "Sledgehammer". Our 70/30 Mixed Workload test is designed to simulate a heavy-duty enthusiast/workstation steady-state environment. We feel that a mix of 70% read/30% write, full random 4K transfers best represents this type of user environment. Our test allows us to see the drive enter into and reach a steady state as the test progresses.

Phase one of the test preconditions the drive for 1 hour with 128K sequential writes at QD32. Phase two of the test runs a 70% read/30% write at QD32, full random 4K transfer workload on the drive for 1 hour. We log and chart (phase two) IOPS data at 5-second intervals for 1 hour (720 data points). 60 data points = 5 minutes.

toshiba-ocz-rc100-240gb-480gb-2-nvme-pcie-ssd-review_67

What we like about this test is that it reflects reality. Everything lines up, as it should. Consumer drives don't outperform Enterprise-Class SSDs that were designed for enterprise workloads. Consumer drives based on old technology are not outperforming modern Performance-Class SSDs, etc.

Obviously, the RC100 is not designed to handle workloads of this nature. We believe that this is because the allocated size for HMB is just to small to keep up with this workload.

Sustained Sequential Write

Version and / or Patch Used: Iometer 2014

Heavy Workload Model

We write to the drive for 1 hour with 128K sequential writes at QD32. We log and chart megabytes per second data at 5-second intervals for 1 hour (720 data points). 60 data points = 5 minutes.

toshiba-ocz-rc100-240gb-480gb-2-nvme-pcie-ssd-review_68

This test unmasks the sequential write performance of TLC flash arrays. The RC100 does better than Intel's 600P, but that's not saying much.

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