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.
Here we see all of the drives with data populating the flash. We roll through different stages, empty, 25%, 50%, 75% and empty again after deleting all the data to test TRIM.
Vertex 3.20 is slower than the original Vertex 3 in both fresh out of box performance and at 50% full. We can't just point all of this to the NAND flash. The 5-Series firmware plays a role as well, we notice the performance loss on other LSI SandForce based drives with 25nm flash.