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SanDisk Ultra II 240GB SSD Review - SanDisk TLC NAND Flash takes shape (Page 8)

By Chris Ramseyer on Sep 12, 2014 at 12:00 pm CDT - 1 min, 39 secs reading time for this page
Rating: 92%Manufacturer: SanDisk

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 10 minutes.

2. Run performance test (one pass only).

3. Repeat 1 and 2 for 8 times, and on each pass increase the duration of random writes by 5 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 1 and 2 for 5 times.

Recovery Phase:

1. Idle for 5 minutes.

2. Run performance test (one pass only).

3. Repeat 1 and 2 for 5 times.

Storage Bandwidth

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.

SanDisk Ultra II 240GB SSD Review - SanDisk TLC NAND Flash takes shape 64 | TweakTown.com

For most mainstream users the performance to look at in this series are the orange and red bars. The orange and red bars show lighter workload conditions typically used with low cost SSDs. In all three workloads, the Ultra II is faster than the MX100, but slower than the ARC 100.

Storage Bandwidth All Tests

SanDisk Ultra II 240GB SSD Review - SanDisk TLC NAND Flash takes shape 65 | TweakTown.com

Here we see all of the tests. The measurements start after the drives are in steady state and Recovery 1 starts adding 5 minute delays between each performance run. After the Ultra II recovers from the random write steady state, the performance increases significantly, but is still a hair lower than the ARC 100.

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

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ABOUT THE AUTHOR - Chris Ramseyer

Chris Ramseyer started his career as a LAN Party organizer in Midwest USA. After working with several computer companies he was asked to join the team at The Adrenaline Vault by fellow Midwest LAN Party legend Sean Aikins. After a series of shake ups at AVault, Chris eventually took over as Editor-in-Chief before leaving to start Real World Entertainment. Look for Chris to bring his unique methods of testing Hard Disk Drives, Solid State Drives as well as RAID controller and NAS boxes to TweakTown as he looks to provide an accurate test bed to make your purchasing decisions easier.

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