Re: [Enigma-devel] Maemo Port for Nokia Internet Tablets - memory footprint

[Till Harbaum / Lists]

Hi,

i did not remove any files. I just removed there usage from the Makefiles, so 
they don't get installed.

Till

Am Dienstag 19 Februar 2008 schrieb Ronald Lamprecht:
> Hi,
>
> Till Harbaum wrote:
> > just to get you some numbers: The device has 256MB of main flash memory
> > of which 100 are occupied at delivery.  The remaining mem is (pipeline
> > sais its compressed) used for user installed applications and data. The
> > n800 comes with an empty internal sd card slot which nearly all users
> > fill with a decent card, at least the 128MB card included with the n800.
> > The n810 has no physical internal slot but a hard wired internal 2GB
> > card.
> >
> > So memory isn't immediately a problem, but moving stuff to the internal
> > memory card may especially help users who install lots of applications.
> >
> > I don't think we should remove sounds or levels packs (besides the
> > development one of course, which is part of my package). And the
> > thumbnails: They are useful and i wouldn't want to remove them.
> > Caliculating them on the fly is rather slow on the arm cpu. So removing
> > their caches will be quite annoying.
> >
> > I already have removed the entire doc tree (which reminds me to check if
> > there's stuff that must be installed like e.g. licenses).
>
> Please do not remove anything from the source - just keep it out of the
> installer package. I will explain this strategy in another mail.
>
> The following parts are the only relevant ones to reduce the memory
> footprint:
>
> 1. Iinstall gfx32 only - skip gfx16,40,48,64
> 2. Zip all levelpacks for the installer
> 3. Use 60x39 thumbnails, scale them to 120x78
> 4. Strip and compress the executable by upx
> 5. Title music
>
> I guess this would result in a footprint of 6 MB + 2 MB thumbnails
> instead of 17 + 4.
>
> Remarks:
> 1. Install empty dirs - see upcoming mail
> 2. Should work without code change (see Refman chapter 2.3)
> 3. I added 60x13 thumbnails for gpx. Just the scaling back to 120x78 is
> still missing.
> 4. upx (http://upx.sourceforge.net/) is used for the Windows installer
> packages, too
> 5. just the upcoming one has a significant footprint
>
> Do not remove anything else - keep the diff as simple as possible.
>
> Greets,
>
> Ronald
>
>
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