Scott James Remnant scott at ubuntu.com
Wed Oct 26 03:37:06 CDT 2005


On Wed, 2005-10-26 at 01:19 -0400, Phillip Susi wrote:

> I was looking around in system monitor and was really curious as to why 
> things were using so much memory.  For instance, clock-applet is using 
> 111 megs of ram.  I took a look at the memory maps and what I found 
> confounds me.  I noticed it lists a TON of 1 MB maps.
> 
Could you attach the output of pmap on such a process -- I don't see
these maps on an i386, and the details of them would likely reveal what
they are.

In particular, whether these are shared maps between all processes (in
which case they're not "wasting" ram), whether they are copy-on-write,
or whether they truly are unusual.


My current guess would be that they're just COW stacks, or perhaps
relocation tables.  But without seeing the pmap output, I can't say for
sure.

Scott
-- 
Scott James Remnant
scott at ubuntu.com
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