[maemo-users] Dealing with N900 responsiveness (or lack of thereof)

[From: Eero Tamminen]

Hi,

ext Dawid Lorenz (maemobile) wrote:
> ----- Original message -----
>> When this happens, do you see "SGX" mentioned in "dmesg" output?
> 
> Don't know, but I'll try hard to not forget to check that next time round.
> 
>> If it's as low as on desktop, you can get hitches while using the
>> device.  Something below 100 may be better though.
> 
> Is echoing value to /proc/.../swappiness a right way of setting this at runtime? Is there any /etc/sysctl.conf equivalent where I could store this value for boottime?

The device itself sets swappiness from /etc/init.d/rcS file,
but I would say that in general one needs to be pretty sure
of his/her changes when modifying essential bootup scripts. :-)


> I have swappiness of 60 right now, we'll see how it goes.


As to memory usage, there are e.g. tools like sp-endurance from
tracking resource usage changes in the device:
http://wiki.maemo.org/Documentation/devtools/maemo5/sp-endurance
http://wiki.maemo.org/Documentation/devtools/maemo5/sp-endurance-postproc

(First you collect the data and then you post-process it after
collecting.  You can run the python scripts for latter even on
the device.)


	- Eero