OutOfMemory exception on device with 2mb memory

Question

Hi all
I have experienced the following problem.
The application I have developed works fine on a sonyerricson w800i but gives outofmemory on a nokia 6131
The se800 reports 1048572 bytes available memory (1mb)
The nokia 6131 reports 2097152 bytes available memory (2mb)
For debugging purposed I do a System.gc() and report free memory, on average the se800 has 77% free whereas the nokia starts with 55% free and it degrades quickly.
Its the same application and code so does this mean the nokia has a problem? It is my code that is at fault?
When I first encountered outOfMemory exception I followed some guidelines removing any inner classes dereferencing object by obj = null and making sure I close streams etc, this helped with general memory consumption. I tested it with the emulator limiting memory to 400k and I have an average of 20% free.
I suspected the screensize to play a role as I paint the canvas manually but on the emulator I use the defaultcolorphone which has a larger screen than the nokia.
Where could the problem lie?
GX

Answer 1

Hi MelGohan
Thanks for your reply. In order to test how much free memory I am using the following method:
    public static String getFreeMem()
        System.gc();
        long tot = Runtime.getRuntime().totalMemory();
        long free = Runtime.getRuntime().freeMemory();
        int per = (int)(((float)free / (float)tot) * 100);
        String s = gx.Utils.padString(String.valueOf(free), -8, " ") + " " + gx.Utils.padString(String.valueOf(per), -3, " ") + "%" + " / " + String.valueOf(tot);
        return s;
    }There are no other applications in memory as I tried restarting the phone and the results were the same hence I can see exactly how much memory is available (2097152 bytes) and how much is free/used.
On the emulator and the sony erricson the memory usage is stable whereas the nokia keeps using more and more, I am currently setting all unused objects = null when done using them but have found no difference so far.
I have put the same post on the nokia boards and there is more info there:
http://discussion.forum.nokia.com/forum/showthread.php?t=108401
GX