Ubiquity installer not usable on machines with <= 256 MB of RAM

[Krzysztof Lichota]

Colin Watson napisał(a):
>> Going to "Ready to install step": used=236 free=4 cached=52.
> 
> Looks like the high water mark is 174MB, then; although it would be
> easier to be sure of that if you'd quoted the number that 'free'
> calculates for you. :-)

I have tried installing Ubuntu. Still couldn't run it without swap, so I
have run it with swap and recorded memory and swap usage.

The results and script I have used are on page
http://lichota.net/~krzysiek/projects/kubuntu/ubiquity-memory-usage/
Unfortunately there is no correspondence between samples and actions in
installer. But the script records memory usage and dumps top 5 memory
hungry processes.
I have finished gathering data on "choosing mount points" step.

The high water mark seems to be 272828 KB=266MB. There is a sudden spike
in memory usage. I have noticed on "ps" output that there are _2_
ubiquity processes then:
root      7092  2.6 12.1  60480 29012 ?        Ss   15:50   0:13
/usr/bin/python /usr/bin/ubiquity gtkui
root     11150  0.0  7.7  59452 18588 ?        D    15:58   0:00
/usr/bin/python /usr/bin/ubiquity gtkui

I will prepare such graph also for Kubuntu for comparison.

	Krzysztof Lichota


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