PCMark Vantage - Drives with Data Testing
For a complete breakdown on the Drives with Data Testing please read this article. You will be able to perform this test at home with the files provided in the article - full instructions are included.
- Brief Methodology
SSDs perform differently when used for a period of time and when data is already present on the drive. The purpose of the Drives with Data testing is to show how a drive performs in these 'dirty' states. SSDs also need time to recover, either with TRIM or onboard garbage collection methods.
Drives with Data Testing - 25%, 50%, 75% Full States and Dirty / Empty Test
Files needed for 60 (64GB), 120 (128GB), 240 (256GB)
60GB Fill - 15GB, 30GB, 45GB
120GB Fill - 30GB, 60GB, 90GB
240GB Fill - 60GB, 120GB, 160GB
Empty but Dirty - a test run just after the fill tests and shows if a drive needs time to recover or if performance is instantly restored.
HDD1 - Windows Defender
HDD2 - Gaming
HDD3 - Windows Photo Gallery
HDD4 - Vista Startup
HDD5 - Windows Movie Maker
HDD6 - Windows Media Center
HDD7 - Windows Media Player
HDD8 - Application Loading
We fancy our own version of Vantage that progressively adds data to the drive between tests to see how a SSD performs in closer to real world situations.
Aside from working with already compressed data like pictures, music and movie files, this is where synchronous flash really improves performance over asynchronous flash. To drive this point home we've included the OCZ Agility 3 to the graphs, the first SF-2281 controlled drive we tested that included asynchronous flash. The Agility 3 has a similar performance profile to the original Patriot Pyro.
Here we see the Pyro SE with synchronous flash does not lose as much performance when data is added to the drive. This real world test shows that even though some performance is lost as the drive is populated, the reduction is not as severe with the Pyro SE.