That all depends how it allocates tile memory. If it mallocs tile by tile then they could be anywhere, including separate pages. If it mallocs a large block (system page size) and then divides it into tiles itself then those tiles are *likely* to reside on the same page - which is what matters most for performance if memory is stretched. -Dave -----Original Message----- From: gimp-developer-bounces@xxxxxxxxxxxxxxxxxxxxxx [mailto:gimp-developer-bounces@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of pcg@xxxxxxxx ( Marc) (A.) (Lehmann ) Sent: Monday, 21 February 2005 10:45 PM To: gimp-developer@xxxxxxxxxxxxxxxxxxxxxx Subject: Re: [Gimp-developer] GIMP and multiple processors ... This is unlikely, as the gimp has no say in the physical layout of the memory it gets from the kernel.