Immediate memory release

FROM : Yannick De Koninck
DATE : Tue Apr 29 13:30:42 2008

Hi everybody,

I am writing an application where, at some point in time, the user 
clicks a button and for a great amount of images the average pixel 
values are calculated and stored in an array.
Basically this looks like this:

-(IBAction)Generate:(id)sender
{

   // some code

for (i = 0; i < count; i++)
       {
   NSImage* tempSource = [[NSImage alloc] 
initWithContentsOfFile:sPath[i]];
   // some code
   [tempSource release];
}

}


When debugging with ObjectAlloc i found that the memory release does 
not happen when the release message is sent but only after the 
Generate function is done. So instead of allocating, deallocating, 
allocating, deallocating... the application keeps allocating memory 
and only releases it afterwards. This becomes a big problem when the 
amount of loaded pictures rises. Is there a way to force the memory 
manager to free the memory when the release message is sent instead of 
after the call? Or can i solve this problem in another way?
Thank you very much,
Yannick, Belgium