PDA RAM memory usage

Hi all,
We have created a PDA application running on <b>SAP Mobile Infrastructure 2.5 Service Pack 18 Patch 1</b> on <b>Windows Mobile 5 </b>and Windows Mobile 2003 SE.
<b>Problem description:</b>
The problem is the RAM memory size. For WM 2003 there is no problem because there are enough PDA's with 128 mb RAM size, but the problem is there is no normal PDA running on WM 5 with 128 mb RAM size. There are only devices with 64 mb RAM.
So we are having some problems with the RAM size, and I want to watch what is in the RAM and I want to see the usage of the RAM easily when I use my application. I can switch to the Settings --> Memory and see the values, but this is not reliable and I only see the usage and not what's in the RAM.
<b>Questions:</b>
- Is there a tool to watch the memory and what's in the memory?
- Can someone give me some information how we can store less in RAM and more in ROM without getting a slower application?
Thanks in advance,
Bart Elshout

hi bart,
had you tried profiling you application? profiling will help you in looking which
portion of the code was consuming a lot of RAM and time.
some common ways to counter heavy application
1) lazy loading
this is very effective in a sense that only the classes required for certain
functionalities are loaded and instantiated. this can be realized by using reflection
and customized class loaders.
2) avoid caching smartsync data
when using smartsync, i don't recommend caching of your syncbo data. the lower
layer already have a cache (esp fileIO).
3) avoid rewrapping if possible
wrapping a syncbo or row into another class will make your class instance bigger.
and caching the fields in it, again will also consume some RAM.
that's only for the part of the data. now you have to consider your UI also. are you
using any UI framework?
regards
jo

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