Am 27.07.2011 15:46, schrieb Andrew Hudson:
But really, the intended target for Haiku doesn't really need that much yet.OK, thanks for the info. Yes, I agree that 4 GB is good enough for basic purposes. However, the definition of a successful product is when people use it for unintended purposes :-) - Andrew
I don't quite agree with Françoi's wording: What currently is or is not a feature of Haiku is much less the product of target audience considerations, but much more the product of who (including "nobody") had the time and motivation to implement what code.
That being said, I believe the point of implementing PAE support (yes it exists) was to be able to address more than 4 GB. Each individual process in Haiku can only address 4GB, but the kernel should be able to use more than 4GB for the mapping of virtual to physical memory. That is of course only interesting when more than one process is running at a time, and affects the necessity for swapping out pages. For example, when one process indeed uses all of it's 4GB address space, the Haiku kernel does not necessarily need to swap out virtual memory, when there are more then 4GB available in physical RAM, since the address space of another process could be mapped to another range of the physical memory. Hope I have remembered these details correctly.
Best regards, -Stephan
