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.
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
Benchmarks are great, but often times developers overlook logic and embrace results that are outside the realm of reality. On the previous page we saw the performance of the drives without data present, but on this page we see what happens when the drives are populated like they would be in your system.
In this test we see that the Corsair Performance 3 is the only SATA 6 SSD on the market to run at a static speed no matter how much data is present on the drive. This test was actually designed to show how the Performance 3 was able to achieve a static speed.
Looking into 2012, I feel this is an area where SSD controller designers like SandForce should focus their attention. We already have peak speeds of 550MB/s, now we need static speed of 550MB/s before moving on.
On the previous page we saw the Crucial m4 outperforming the Vertex 3 drives in some of the tests. Normally I would make a bit of a big deal about that, but then I saw the light. The Vertex 3 loses performance as data is added to the drive, but not at the same rate as the Crucial m4.