http://lxr.linux.no/linux/fs/proc/task_mmu.c#L40


VmPeak: 60512 kB
The largest amount of memory this process has been able to address.

VmSize: 30456 kB
Size of the process's address space less reserved regions

VmLck: 0 kB
Size of the locked pages (i.e. can't be swapped out).


VmHWM: 14768 kB
Largest amount memory ever owned by the process.

VmRSS: 5404 kB
Size of all the page frames owned by the process.

VmData: 9916 kB
The size of all the process's addressable memory less the shared and
stack sections.



VmStk: 84 kB
Size of this process's stack.


VmExe: 4 kB
Size of this process's executable code.

VmLib: 12688 kB
Size of the executable section not including this process's code. I.e.
the amount of memory mapped to the executable code of libraries.

VmPTE: 104 kB
The size of the page tables this process uses.