Hmm, it will indeed be interesting to see how having interpreted
Dalvik, i.e., without a JIT, will impact performance of my core
routines that are not delegated to coarse grain native code (and
hardware) calls like one can do with typical CPU-intensive graphics
operations. Looking forward to performance benchmarking, to compare
Android (with interpreted Dalvik) to J2ME (with JIT) on real phones.
There could be a huge performance difference. My program can benefit
from JIT with a low memory overhead, since only small parts of the
code eat most of the CPU time, but a JIT compiler might get confused
by getting my CPU load in bursts (say at ten percent duty cycle), such
that it may "forget" to keep the JIT-compiled native code available
for reuse in the next burst in CPU load.

Despite not being able to emulate the compass code, I'm not too
worried about that part as for me it is only an added feature and user
option for now.


On Sep 4, 12:40 am, hackbod <[EMAIL PROTECTED]> wrote:
> It sounds like you will generally be in good shape, but again I will
> say -- you should always always run your app on at least one piece of
> real hardware before releasing it.  This app will be running in a
> completely different environment (interpreted dalvik code), and the
> general user experience on real hardware just can not be emulated.
> Things like the screen density, interaction with the touch screen,
> etc.  Personally I don't think running a previous J2ME version on some
> other hardware counts as running the current Android version on the
> corresponding hardware.

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