Aschwin Wesselius wrote:
Ed W wrote:45MB x2 is a lot less than 215MB...Also, I would expect the actual consumption to be less than 2x since not all the data will be doubled in size..?Any other suggestions on how to debug this 5x jump in memory usage? Thanks Ed W Robert Cummings wrote:64 bit integers are twice as big as 32 bit integers.Hi all,I'm not an expert and have no real experience with programming in a 64-bit environment.That said, I think a system will allocate not only space for 64-bit values (in simple theory twice as much as 32-bit). 64-bit is simple a factor, so calculations increase with this factor.I think the memory goes into a square ratio (NxN) instead of just saying double (Nx2). Again, I'm not a wizzkid with enough math experience. This is just my simple and humble reasoning.--
RSS is staying approximately constant, ie the memory in use has not changed much
VSZ, ie virtual memory has increased by more than 2x2=4. If someone has some hard experience of both platforms then please add some experience to this - however, I'm looking for some hard debugging knowhow on this, not just some handwaving estimates please
Ed W
