On Tue, Aug 09, 2016 at 12:05:43PM -0400, robert.f...@collabora.com wrote: > From: Sonny Rao <sonny...@chromium.org> > > This is based on earlier work by Thiago Goncales. It implements a new > per process proc file which summarizes the contents of the smaps file > but doesn't display any addresses. It gives more detailed information > than statm like the PSS (proprotional set size). It differs from the > original implementation in that it doesn't use the full blown set of > seq operations, uses a different termination condition, and doesn't > displayed "Locked" as that was broken on the original implemenation. > > This new proc file provides information faster than parsing the potentially > huge smaps file.
You can "parse" /proc/*/pagemap . RSS, swap are there. So which ones do you really need? Why the separate anon hugepages and anon regular pages? > + seq_printf(m, > + "Rss: %8lu kB\n" > + "Pss: %8lu kB\n" > + "Shared_Clean: %8lu kB\n" > + "Shared_Dirty: %8lu kB\n" > + "Private_Clean: %8lu kB\n" > + "Private_Dirty: %8lu kB\n" > + "Referenced: %8lu kB\n" > + "Anonymous: %8lu kB\n" > + "AnonHugePages: %8lu kB\n" > + "Swap: %8lu kB\n", > + mss_sum->resident >> 10, > + (unsigned long)(mss_sum->pss >> (10 + PSS_SHIFT)), > + mss_sum->shared_clean >> 10, > + mss_sum->shared_dirty >> 10, > + mss_sum->private_clean >> 10, > + mss_sum->private_dirty >> 10, > + mss_sum->referenced >> 10, > + mss_sum->anonymous >> 10, > + mss_sum->anonymous_thp >> 10, > + mss_sum->swap >> 10);
