Thread: Decrease Nuvis booting time after long usage and multiple updates

Originally Posted by Nick_ts13

If your Nuvi takes too long to boot, after long usage and multiple updates,
then probably Nuvi file system on internal memory has been fragmented a lot. A defragment of Nuvi's internal memory will speed up booting and decrease considerably the waiting time.

Interestingly the memory on my Nuvi 1490 remained fragmented at 17% after defragmenting with W7.....W7 analyzed, then defraged twice and the value stayed the same....

Then thinking about it, I realized defraging solid state memory is unnecessary.....
Here is one explanation -
Solid State Drives can access any location on the drive in the same time. This is one of the main advantages over mechanical hard drives. This also means that there is no need to defragment a Solid State Drive ever. These drives have actually been designed to write data evenly in all sectors of the drive which the industry is calling wear leveling. Each sector of a Solid State Drive has a limited number of writes before it cannot be overwritten anymore. (this is a theoretical limit which cannot be reached in work environments)

If you did defragment your Solid State Disk you can rest assured that you did not harm it in any way. It is just that this process is not needed and that defragmentation causes lots of write processes which means that the drive will reach its write limits sooner.

No need for defragmentation is therefor another advantage of Solid State Drives.

Also the mlg_history.db was rather large (2 MB)....which was deleted. The interesting thing is that the database in the 1490 fills up with entries (30000 lines) on mileage and fuel calculations....In other words, turn off the eco drive feature if you want shorter boot times.....