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Reducing N900 RAM usage

 

 

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paul.hartman+maemo at gmail

Mar 6, 2012, 2:13 PM

Post #1 of 4 (770 views)
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Reducing N900 RAM usage

Hi,

A freshly-flashed N900 is so much faster and more responsive compared
to my N900 with all my favorite apps installed, mail accounts, MfE,
chat accounts, themes, status bar widgets, and so on. I'm guessing
these things all have a negative impact...

Has anyone done a study into the impact of these various things and
RAM usage? For example how much RAM can I spare if I don't use Modest
at all, or don't use chat accounts, etc. allowing me to weigh the cost
vs. benefit of using these features.

Thanks,
Paul
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lucas.chiesa at gmail

Mar 7, 2012, 5:51 AM

Post #2 of 4 (741 views)
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Re: Reducing N900 RAM usage [In reply to]

Hi,

I had the same experience. I bought a used N900 which was crawling, I
reflashed it and now it's much faster. I wouldn't say that
chat/main/MfE caused that because I have since then activated all
those features and the phone is still running very well.

I would be more inclined to blame the "slowliness" of the phone to
some nasty app (or deamon, o widget) that was eating processor/memory.
Sadly I didn't investigated the cause of the problem.. I wanted a
fresh system in my phone as fast as possible.

Lucas

"Oh no, not again."

- A bowl of petunias on its way to certain death.



On Tue, Mar 6, 2012 at 7:13 PM, Paul Hartman
<paul.hartman+maemo [at] gmail> wrote:
> Hi,
>
> A freshly-flashed N900 is so much faster and more responsive compared
> to my N900 with all my favorite apps installed, mail accounts, MfE,
> chat accounts, themes, status bar widgets, and so on. I'm guessing
> these things all have a negative impact...
>
> Has anyone done a study into the impact of these various things and
> RAM usage? For example how much RAM can I spare if I don't use Modest
> at all, or don't use chat accounts, etc. allowing me to weigh the cost
> vs. benefit of using these features.
>
> Thanks,
> Paul
> _______________________________________________
> maemo-users mailing list
> maemo-users [at] maemo
> https://lists.maemo.org/mailman/listinfo/maemo-users
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jknutar at nic

Mar 17, 2012, 7:07 PM

Post #3 of 4 (719 views)
Permalink
Re: Reducing N900 RAM usage [In reply to]

On Wednesday 07 March 2012, Paul Hartman wrote:
> Hi,
>
> A freshly-flashed N900 is so much faster and more responsive compared
> to my N900 with all my favorite apps installed, mail accounts, MfE,
> chat accounts, themes, status bar widgets, and so on. I'm guessing
> these things all have a negative impact...
>
> Has anyone done a study into the impact of these various things and
> RAM usage? For example how much RAM can I spare if I don't use Modest
> at all, or don't use chat accounts, etc. allowing me to weigh the
> cost vs. benefit of using these features.

IIRC, Skype when I used it seemed to be about 5-10Meg impact on RSS.

In general, I'd imagine having any QT widgets would add 10-20M use. Not
so sure myself, I stopped using widgets entirely, not enough ram for
luxuries :)
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eero.tamminen at nokia

Mar 19, 2012, 2:21 AM

Post #4 of 4 (725 views)
Permalink
Re: Reducing N900 RAM usage [In reply to]

Hi,

On 03/18/2012 04:07 AM, ext Jan Knutar wrote:
> On Wednesday 07 March 2012, Paul Hartman wrote:
>> A freshly-flashed N900 is so much faster and more responsive compared
>> to my N900 with all my favorite apps installed, mail accounts, MfE,
>> chat accounts, themes, status bar widgets, and so on. I'm guessing
>> these things all have a negative impact...
>>
>> Has anyone done a study into the impact of these various things and
>> RAM usage? For example how much RAM can I spare if I don't use Modest
>> at all, or don't use chat accounts, etc. allowing me to weigh the
>> cost vs. benefit of using these features.
>
> IIRC, Skype when I used it seemed to be about 5-10Meg impact on RSS.
>
> In general, I'd imagine having any QT widgets would add 10-20M use. Not
> so sure myself, I stopped using widgets entirely, not enough ram for
> luxuries :)

You can use sp-endurance to measure and visualize usage of all system
resources.


I would recommend getting the latest version from here:
https://maemo.gitorious.org/maemo-tools/sp-endurance

And the debian packaging from maemo-packaging branch and remove
the Harmattan specific "aegis" stuff from the debian/control file
before building the package.

The latest version has pretty nice graphing utilities.


Instructions on the use are here:

http://harmattan-dev.nokia.com/docs/library/html/guide/html/Developer_Library_Developing_for_Harmattan_Developer_tools_Performance_testing_tools_Using_sp-endurance-postproc.html
http://harmattan-dev.nokia.com/docs/library/html/guide/html/Developer_Library_Developing_for_Harmattan_Developer_tools_Performance_testing_tools_Using_sp-endurance.html

They're about the same as for N900:
http://wiki.maemo.org/Documentation/devtools/maemo5/sp-endurance
http://wiki.maemo.org/Documentation/devtools/maemo5/sp-endurance-postproc

Except for the new endurance_plot utility which generates the nice
graphs with gnuplot.


- Eero
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