Is swap really needed when RAM's aplenty

[Aaron Konstam]

On Thu, 2010-08-19 at 16:15 -0500, Michael Hennebry wrote:
> On Thu, 19 Aug 2010, JD wrote:
> 
> > Problem comes as Michael explains, that when a process needs a large
> > "physically contiguous" chunk of memory, it might not be available.
> > That said, usually, requests for physically contiguous memory is only
> > needed when wanting to map very large number of DMA pages for
> > doing direct physical I/O.
> > Otherwise, a process itself does not need to have physically contiguous
> > pages. Only the virtual space allocated to that "malloc" or large buffer
> > declaration in a program, is contiguous.
> 
> Why would malloc or a large buffer declaration
> require physically contiguous memory?
I have te equally interesting question? Why you think malloc allocates
memory blocks in the swap area. Do you have a reference for such a
statement?

-- 
Aaron Konstam <akonstam at sbcglobal.net>