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Samsung PM961 1TB M.2 NVMe PCIe SSD Review

By Jon Coulter from May 7, 2017 @ 23:01 CDT
TweakTown Rating: 96%Manufacturer: Samsung

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. Phase two of the test runs a 70% read/30% write, 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.

 

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_63

 

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.

 

Mirroring what we saw with our PCMark 8 extended testing, the PM961 starts off better on the Intel platform, but as it descends into a steady-state, the drive performs similarly on both platforms.

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