Nowadays, more and more computers are using SSD, some computer users upgrade their HDD to SSD, which brings the question should we defrag an SSD?
Traditional spinning hard drives have a metric known as Access Time (or Seek Time, which is a slightly different measurement) that refers to the average amount of time it takes for the drive armature to physically reposition the heads so that they can begin reading data from a given sector of the disk (it may be more or less depending on how far the heads have to travel). It should be noted that this latency is measured in milliseconds (thosandths