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Plextor M8V 512GB SATA III SSD Review (Page 8)

Jon Coulter | Feb 13, 2018 at 10:00 am CST - 1 min, 38 secs reading time for this page
Rating: 94%Manufacturer: Plextor

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.

Plextor M8V 512GB SATA III SSD Review 44 | TweakTown.com

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.

As expected, the M8V doesn't fare to well with this test. Most TLC SSDs have a hard time with sustained workloads of this nature. The M8V does manage to outperform Samsung's powerful 750 EVO and OCZ's DRAM-less MLC powered VX500. This time Intel's 545s gets the better of the M8V.

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.

Plextor M8V 512GB SATA III SSD Review 45 | TweakTown.com

Even though the M8V's sustained sequential write performance isn't as high as we would like to see, it is still one of the best of the performers on our chart. For most TLC SSDs, lower sustained write performance is just the nature of the beast.

Last updated: Nov 15, 2019 at 01:16 pm CST

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Jon Coulter

ABOUT THE AUTHOR - Jon Coulter

Jon became a computer enthusiast when Windows XP launched. He was into water cooling and benching ATI video cards with modded drivers. Jon has been building computers for others for more than 10 years. Jon became a storage enthusiast the day he first booted an Intel X25-M G1 80GB SSD. Look for Jon to bring consumer SSD reviews into the spotlight.

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