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Plextor M6 Pro 128GB SSD Review

By: Chris Ramseyer | SSDs in Storage | Posted: Feb 10, 2015 3:10 pm
TweakTown Rating: 92%Manufacturer: Plextor

Futuremark PCMark 8 Extended - Consistency Test

 

Version and / or Patch Used: 2.0.228

 

Heavy Usage Model:

 

Futuremark's PCMark 8 allows us to wear the test drive down to a reasonable consumer steady state, and then watch the drive recover on its own through garbage collection. To do that, the drive gets pushed down to steady state with random writes, and then idle time between a number of tests allows the drive to recover.

 

Precondition Phase:

1. Write to the drive sequentially through up to the reported capacity with random data.

2. Write the drive through a second time (to take care of overprovisioning).

 

Degradation Phase:

1. Run writes of random size between 8*512 and 2048*512 bytes on random offsets for ten minutes.

2. Run performance test (one pass only).

3. Repeat one and two, eight times, and on each pass, increase the duration of random writes by five minutes.

 

Steady state Phase:

1. Run writes of random size between 8*512 and 2048*512 bytes on random offsets for 50 minutes.

2. Run performance test (one pass only).

3. Repeat one and two, five times.

 

Recovery Phase:

1. Idle for five minutes.

2. Run performance test (one pass only).

3. Repeat one and two, five times.

 

PCMark 8's Consistency test provides a ton of data output that we use to judge a drive's performance. Here we see the three states of performance for the select SSDs, light use, consumer steady state, and worst case.

 

Storage Bandwidth - All Tests

 

plextor-m6-pro-128gb-ssd-review_64

 

Here we get our first look at PlexTurbo with the M6 Pro 128GB SSD. The new 1.03 firmware was released to increase the M6 Pro's steady state performance under real-world workloads.

 

Storage Bandwidth - Heavy Load

 

plextor-m6-pro-128gb-ssd-review_65

 

PlexTurbo doesn't do a lot to increase throughput performance in the heavy workload tests, but this is to be expected. Other SSD cache systems with DRAM in front of the SSD don't do well in this section either. The DRAM is full of data, and no longer buffers the writes to the drive. At that point, the cache is trying to flush to the SSD, and the SSD is taking on writes from the test as well.

 

Storage Bandwidth - Typical Consumer Load

 

plextor-m6-pro-128gb-ssd-review_66

 

PlexTurbo does a bit better under consumer workloads. The Plextor M6 Pro also manages to perform well in this test with the new 1.03 firmware. The drive still doesn't meet the high performance levels of the Extreme II or 850 Pro, but it still performs well.

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