[PATCH v5 3/3] Documentation/filesystems: Added /proc/PID/totmaps documentation
STALE3665d
From: <hidden>
Date: 2016-09-05 20:14:51
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Jonathan Corbet, Linus Torvalds
From: Robert Foss <redacted> Added documentation covering /proc/PID/totmaps. Signed-off-by: Robert Foss <redacted> --- Documentation/filesystems/proc.txt | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index fcc1ac0..49a8483 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt@@ -11,6 +11,7 @@ Version 1.3 Kernel version 2.2.12 Kernel version 2.4.0-test11-pre4 ------------------------------------------------------------------------------ fixes/update part 1.1 Stefani Seibold <stefani@seibold.net> June 9 2009 +add totmaps Robert Foss <robert.foss@collabora.com> August 12 2016 Table of Contents -----------------
@@ -147,6 +148,8 @@ Table 1-1: Process specific entries in /proc stack Report full stack trace, enable via CONFIG_STACKTRACE smaps an extension based on maps, showing the memory consumption of each mapping and flags associated with it + totmaps an extension based on maps, showing the total memory + consumption of all mappings numa_maps an extension based on maps, showing the memory locality and binding policy as well as mem usage (in pages) of each mapping. ..............................................................................
@@ -515,6 +518,24 @@ be vanished or the reverse -- new added. This file is only present if the CONFIG_MMU kernel configuration option is enabled. +The /proc/PID/totmaps is an extension based on maps, showing the memory +consumption totals for all of the process's mappings. It lists the sums of the +same statistics as /proc/PID/smaps. + +The process' mappings will be summarized as a series of lines like the +following: + +Rss: 4256 kB +Pss: 1170 kB +Shared_Clean: 2720 kB +Shared_Dirty: 1136 kB +Private_Clean: 0 kB +Private_Dirty: 400 kB +Referenced: 4256 kB +Anonymous: 1536 kB +AnonHugePages: 0 kB +Swap: 0 kB + The /proc/PID/clear_refs is used to reset the PG_Referenced and ACCESSED/YOUNG bits on both physical and virtual pages associated with a process, and the soft-dirty bit on pte (see Documentation/vm/soft-dirty.txt for details).
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2.7.4