如何找出应用程序消耗的地址空间大小并将其报告给用户？

I'm writing the memory manager for an application, as part of a team of twenty-odd coders. We're running out of memory quota and we need to be able to see what's going on, since we only appear to be using about 700Mb. I need to be able to report where it's all going - fragmentation etc. Any ideas?I'm writing the memory manager for an applicati