Something new we are starting to do is run the storage consistency test in the PCMark 8 application from Futuremark. In short, it looks at drive performance degradation as the drive becomes “dirty” and how it rebounds after given time to recover and run background routines like garbage collection and TRIM. This takes nearly a day to run through all of the iterations of test sets. Since most of our benchmarks show the drive performance in a clean state, this is a nice contrast to provide yet another view of performance. PCMark 8’s storage benchmark test contains workload traces from Adobe Photoshop, Adobe Illustrator, Adobe InDesign, Adobe After Effects, Microsoft Word, Microsoft Excel, Microsoft Power Point, World of Warcraft and Battlefield 3. The PCMark 8 Consistency test has five phases: Precondition phase
Steady state phase
Benchmark Results: The consistency performance shows it taking a large hit overall in a degraded state but recovers well. It’s a pretty stark contrast to SanDisk’s Extreme PRO dive. The moral is, keep the Ultra II <80% full and your performance should stay near peak for a long time.