Re: vm / physmem info
Re: vm / physmem info
- Subject: Re: vm / physmem info
- From: Glen Beane <email@hidden>
- Date: Fri, 17 Jun 2005 14:24:42 -0400
On Jun 17, 2005, at 1:02 PM, Mike Smith wrote:
Glen,
The short answer is "no".
You are aware that the answer would be "which processes' address
spaces"?
yes
And that you may get multiple answers for a single process? And
that before the information is even returned to you, it may have
changed?
yes
= Mike
I just really need (actually, would like) to get a *rough* idea of
how memory is fragmented - if I have a HPC application that
allocates a large amount of memory, how fragmented is that in
physical ram. It's not the end of the world if I can't, but it
would definitely be helpful (for a number of reasons that are outside
the scope of my question)...
I'm really only concerned with one or two processes
On Jun 17, 2005, at 9:55 AM, Glen Beane wrote:
Can anyone help me out here?
can I get a list of physical pages, and then if it is holding a
virtual page, find out what process's address space that virtual
page is mapped to?
On Jun 15, 2005, at 2:50 PM, Glen Beane wrote:
I'm doing some experiments on on OS X system, and I need to find
out how virtual memory is mapped to physical ram at a particular
instance. That is I need to be able to find out what physical
portions of memory are currently holding active or inactive
pages, and what those pages belong to. I was hoping this would
be possible to do from a kext, and I would have a client program
that could connect to the kext and get a snapshot of what was
going on in memory. Thus far I have been unable to find any
doccumented APIs that may help me out. Does anyone have any
insight or information that can help me out?
Glen Beane
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