Re: [PATCH v5 2/2] mm: hugetlb: proc: add HugetlbPages field to /proc/PID/status

[David Rientjes]

On Thu, 20 Aug 2015, Michal Hocko wrote:

> On Thu 20-08-15 08:26:27, Naoya Horiguchi wrote:
> > Currently there's no easy way to get per-process usage of hugetlb pages,
> 
> Is this really the case after your previous patch? You have both 
> HugetlbPages and KernelPageSize which should be sufficient no?
> 
> Reading a single file is, of course, easier but is it really worth the
> additional code? I haven't really looked at the patch so I might be
> missing something but what would be an advantage over reading
> /proc/<pid>/smaps and extracting the information from there?
> 

/proc/pid/smaps requires root, /proc/pid/status doesn't.
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