Decrease Nuvis booting time after long usage and multiple updates

Nick_ts13 · 20th March 2011, 01:16 PM

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.

On my Nuvi 1300 the booting time went down from 50 sec to 25 sec, just as the time needed when i had bought it. Check it out and you will be amazed.

**lolypop000** · 20th March 2011, 03:24 PM

Or delite mlg_history in squlite folder.

**ddabcd277** · 20th March 2011, 06:46 PM

@ Nick_ts13

Haven't thought about that. Thanks, useful! BTW if you haven't perform clearing of the non-volatile memory that will also help:
Speedometer - > Developer Info -> Non-Volatile -> Clear Non-Volatile

And as lolypop000 wrote deleting the mlg_history.db will also help. I know that this file is also causing sound/bluetooth problems. It seems that this file gets corrupted some times.

Cheers,

Nick_ts13 · 20th March 2011, 11:56 PM

Should I backup some files prior clearing the non-volatile memory? My settings and favorites will be erased or not?

**catymag** · 21st March 2011, 12:13 AM

clear non vol is like an hard reset, it will erase your personal data

aekhong · 2nd April 2011, 09:09 AM

Originally Posted by catymag

clear non vol is like an hard reset, it will erase your personal data

For my 3790 ::
Clear Non Vol & Hard Reset can make my 3790 is better for currently position fixation.
Because it will delete all my FAV Pois & Because my 3790 can be in poor performance after the long time usage , so I create the .gpi file instead FAV Pois.

So I can do Hard reset anytime I want.
But however., I did not hard reset my 3790 for my last trip in Europe for all 13 days ., it worked very well.

So now I love my 3790 so much !

**floydo** · 16th June 2011, 05:20 PM

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.....

**catymag** · 16th June 2011, 05:42 PM

Not sure defrag can be useful in Nuvi internal memory, it's not a mechanical drive.
The drive in a nuvi is solid state and can not really benefit from defragging
Probably defrag runs scan disk first to check for corrected or cross linked files : that benefits the card