Re: [NTLK] [LONG] Re.: Defragmenting a Newton?

From: David Golden (ikondave_at_charter.net)
Date: Tue Jan 01 2002 - 14:18:03 EST


*snip*
> 1. Open the Extra-Drawer and write down the used and free memory of your
> Newton
>
> I have here an upgraded MP2000 with the following memory:
>
> a) Total System RAM installed: 3984K
> b) Used memory before defrag: 3195K
> c) Free memory before defrag: 328K
> d) So...total "available" memory on an UMP2K or MP21K is b) + c) : 3523k
> e) d) - a) : 461k ...is used by the system...for the invisible "World
> data" soup....Countries, cities, time zones, currencies, etc...!
>
> 2. Do a full backup with all information and all packages on a GOOD memory
> card.
> Please don't use the NBU or NCU backup....I'm not sure if all
> information is really backuped. And after all the years with
> OS 2.X, I only know 3 or 4 people with good experiences with that
> software...;-((
>
> 3. Remove ALL memory cards (including the one with the backup) from your
> Newton and store it in a safe place ;-)
>
> 4. Make a HARD Reset...that means: press the reset button and the hold the
> power button of your Newton!
> Please: make sure that you have a WORKING Backup of your system BEFORE
> hard reset your Newton!
>
> 5. After a few minutes your Newton will reboot and the startup assistent
> welcomes you.
> Just tap "Continue" to go through this procedure...
>
> 6. Open once again the Extra-drawer and write down again the memory
> information of your Newton:
> a) 3984k total
> b) 26K used (I don't know for what....??)
> c) 3497k free
> d) 3523k again
> e) 461k used but invisible...
>
> 7. Now insert the memory card with the full backup into your Newton and do
> a full restore....
>
> 8. After the restore the Newton will reboot once again.
>
> 9. Hey....your babe is back....so let's see if your memory was fragmented:
>
> 10. Open the Extra-drawer and write down once again the memory information:
> a) 3984k total
> b) 3094k used ( !!!! )
> c) 429k free ( !!! )
> d) 3523k
> e) 461k used but invisible
>
> And now please compare the values 1.c and 10.c....here in my case you will
> see a difference of 101k FREE RAM !
>
> So...with a simple backup and restore procedure I increased the free
> internal memory of my Newton for about 100k.
> Not bad, or ??
*snip*
> Christian Fiutak

Hey Christian -

Thanks for your clear description of this process! It's been nearly two
years since I last had a Newton to play with, and I have forgotten so
much...

Dave

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