http://www.pcgamer.com/should-i-defrag-my-ssd/

Over the last few years, SSDs have become the standard storage device for enthusiasts and gamers alike. Some would even say they are the most impactful upgrade for your PC. They are smaller, faster and have gotten much more reliable over the years. But do you need to defrag them?

I remember the days when solid state drives were something you looked at pictures of because they were too damn expensive to get one for yourself. If you wanted to increase the speed of your storage, de-fragmentation would have to suffice. Before we talk about whether defragging your SSD is a good idea, it’s important to understand why it’s beneficial for traditional spinners.