On 14 Mar 2012, at 23:45, Jens Alfke wrote:

> 
> On Mar 13, 2012, at 11:09 PM, Gerriet M. Denkmann wrote:
> 
>> Is there a Cocoa method which gives me to any (physical) memory address the 
>> status - like "used by process a" or: "shared by processes a, b, ..., z" or 
>> "free”?
> 
> Are you really sure you mean “physical” memory address? Physical addresses 
> are generally only visible to the kernel; processes only see their own mapped 
> address spaces.

No, I am not sure. 
When I iterate over all processes, and get the memory for each, together with 
information like: "is in RAM", "is mapped, but not in RAM", "swapped", "shared 
with processes a, b, c" then I will be quite content.

> 
> There’s definitely no Objective-C API for this level of stuff — you’re 
> talking Unix system calls here.

Currently I am looking at vm_region_64() from the Kernel.framework.
Others have suggested sysctl(), but the man page is far from complete.


Kind regards,

Gerriet.


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