File 0058-library-reverting-tmpfs-subtraction-from-c... of Package procps

Overview Repositories Revisions Requests Users Attributes Meta

File 0058-library-reverting-tmpfs-subtraction-from-cached-18-F.patch of Package procps (Revision 31460c246a26b089fff5f6d3bd9a6670)

Currently displaying revision 31460c246a26b089fff5f6d3bd9a6670 , Show latest

Based on 2f96eef7f86a12b81badef1c91ec2d503ae4029d Mon Sep 17 00:00:00 2001
From: Jaromir Capik <jcapik@redhat.com>
Date: Wed, 30 Apr 2014 13:59:34 +0200
Subject: [PATCH] library: reverting tmpfs subtraction from cached
 (18-FEB-2014)

The subtraction was marked as reinforcing the misconception,
that memory in the page cache can be considered free.
The Cached value is not a sum of page cache and tmpfs,
as the tmpfs memory lives in the page cache and therefore
it's an inseparable part of it.
---
 free.1         |    4 +---
 proc/sysinfo.c |    2 --
 vmstat.8       |    3 +--
 3 files changed, 2 insertions(+), 7 deletions(-)

diff --git free.1 free.1
index 21cce28..85efef8 100644
--- free.1
+++ free.1
@@ -32,9 +32,7 @@ kernels 2.6.32, displayed as zero if not available)
 Memory used by kernel buffers (Buffers in /proc/meminfo)
 .TP
 \fBcached\fR
-Memory used by the page cache  (calculated as Cached - Shmem in
-/proc/meminfo - the Cached value is actually the sum of page cache and
-tmpfs memory)
+Memory used by the page cache (Cached in /proc/meminfo)
 .SH OPTIONS
 .TP
 \fB\-b\fR, \fB\-\-bytes\fR
diff --git proc/sysinfo.c proc/sysinfo.c
index e07ca86..85fb0a4 100644
--- proc/sysinfo.c
+++ proc/sysinfo.c
@@ -688,8 +688,6 @@ nextline:
     kb_main_used = 0;
   }
   kb_main_cached += kb_swap_reclaimable + kb_swap_cached + kb_nfs_unstable;
-  /* "Cached" includes "Shmem" - we want only the page cache here */
-  kb_main_cached -= kb_main_shared;
 }
 
 /*****************************************************************/
diff --git vmstat.8 vmstat.8
index 2782a42..420d9f3 100644
--- vmstat.8
+++ vmstat.8
@@ -102,8 +102,7 @@ b: The number of processes in uninterruptible sleep.
 swpd: the amount of virtual memory used.
 free: the amount of idle memory.
 buff: the amount of memory used as buffers.
-cache: the amount of memory used as cache (excluding tmpfs memory for
-kernels 2.6.32+)
+cache: the amount of memory used as cache.
 inact: the amount of inactive memory.  (\-a option)
 active: the amount of active memory.  (\-a option)
 .fi
-- 
1.7.9.2

Places

File 0058-library-reverting-tmpfs-subtraction-from-cached-18-F.patch of Package procps (Revision 31460c246a26b089fff5f6d3bd9a6670)

Places