Re: Memory utilization

Hi Tim,

> FF210000 8K read/write/exec [ anon ]
> FF340000 8K read/write/exec/shared [ anon ]
> FF3A0000 8K read/write/exec [ anon ]
> I don't know what "anon" means, but let's
> assume that it is also private to this specific process,

The anon refers to anonymous pages that are mapped to /dev/zero by calling mmap() which is a bunch of zeroes and not mapped from a file. It can be shared between processes with common ancestors as it does not have data as such and just zeroes, but processes having access to a single mapping of /dev/zero can share this memory region. In the above case, we have a 8K that is shared and the 16K that is private to this process.

I am sure I will be corrected if I am wrong :-)

Hope this helps.
Regards,
Madhavan

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Madhavan Amruthur
DecisionPoint Applications

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