This fragmentation forces the storage controller to perform multiple "seeks" to read a single file, significantly slowing down app launches and system responsiveness.
If fragmentation is high, the host instructs the device to perform physical defragmentation . FBO Delivers Sustained Mobile Phone Performance
The host asks the storage device for the current physical fragmentation level of those files. This fragmentation forces the storage controller to perform
FBO is a feature introduced in the (Universal Flash Storage) standard to combat this aging effect. It functions through a specific host-device protocol: FBO Delivers Sustained Mobile Phone Performance
Parts of a file are scattered across different logical addresses.
Even if data appears contiguous to the software, the physical flash memory (NAND) may store it in non-contiguous locations due to background tasks like garbage collection .