Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752624AbbHENCt (ORCPT ); Wed, 5 Aug 2015 09:02:49 -0400 Received: from mx2.suse.de ([195.135.220.15]:54956 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751858AbbHENCV (ORCPT ); Wed, 5 Aug 2015 09:02:21 -0400 From: Vlastimil Babka To: Andrew Morton , Jerome Marchand Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Vlastimil Babka , Hugh Dickins , Michal Hocko , "Kirill A. Shutemov" , Cyrill Gorcunov , Randy Dunlap , linux-s390@vger.kernel.org, Martin Schwidefsky , Heiko Carstens , Peter Zijlstra , Paul Mackerras , Arnaldo Carvalho de Melo , Oleg Nesterov , Linux API , Konstantin Khlebnikov , Minchan Kim Subject: [PATCH v3 4/4] mm, procfs: Display VmAnon, VmFile and VmShm in /proc/pid/status Date: Wed, 5 Aug 2015 15:01:25 +0200 Message-Id: <1438779685-5227-5-git-send-email-vbabka@suse.cz> X-Mailer: git-send-email 2.4.6 In-Reply-To: <1438779685-5227-1-git-send-email-vbabka@suse.cz> References: <1438779685-5227-1-git-send-email-vbabka@suse.cz> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4079 Lines: 102 From: Jerome Marchand It's currently inconvenient to retrieve MM_ANONPAGES value from status and statm files and there is no way to separate MM_FILEPAGES and MM_SHMEMPAGES. Add VmAnon, VmFile and VmShm lines in /proc//status to solve these issues. Signed-off-by: Jerome Marchand Signed-off-by: Vlastimil Babka --- Documentation/filesystems/proc.txt | 10 +++++++++- fs/proc/task_mmu.c | 13 +++++++++++-- 2 files changed, 20 insertions(+), 3 deletions(-) diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index fcf67c7..fadd1b3 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -168,6 +168,9 @@ For example, to get the status information of a process, all you have to do is VmLck: 0 kB VmHWM: 476 kB VmRSS: 476 kB + VmAnon: 352 kB + VmFile: 120 kB + VmShm: 4 kB VmData: 156 kB VmStk: 88 kB VmExe: 68 kB @@ -229,7 +232,12 @@ Table 1-2: Contents of the status files (as of 4.1) VmSize total program size VmLck locked memory size VmHWM peak resident set size ("high water mark") - VmRSS size of memory portions + VmRSS size of memory portions. It contains the three + following parts (VmRSS = VmAnon + VmFile + VmShm) + VmAnon size of resident anonymous memory + VmFile size of resident file mappings + VmShm size of resident shmem memory (includes SysV shm, + mapping of tmpfs and shared anonymous mappings) VmData size of data, stack, and text segments VmStk size of data, stack, and text segments VmExe size of text segment diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 99b0efe..e299101 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -22,7 +22,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) { - unsigned long data, text, lib, swap, ptes, pmds; + unsigned long data, text, lib, swap, ptes, pmds, anon, file, shmem; unsigned long hiwater_vm, total_vm, hiwater_rss, total_rss; /* @@ -39,6 +39,9 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) if (hiwater_rss < mm->hiwater_rss) hiwater_rss = mm->hiwater_rss; + anon = get_mm_counter(mm, MM_ANONPAGES); + file = get_mm_counter(mm, MM_FILEPAGES); + shmem = get_mm_counter_shmem(mm); data = mm->total_vm - mm->shared_vm - mm->stack_vm; text = (PAGE_ALIGN(mm->end_code) - (mm->start_code & PAGE_MASK)) >> 10; lib = (mm->exec_vm << (PAGE_SHIFT-10)) - text; @@ -52,6 +55,9 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) "VmPin:\t%8lu kB\n" "VmHWM:\t%8lu kB\n" "VmRSS:\t%8lu kB\n" + "VmAnon:\t%8lu kB\n" + "VmFile:\t%8lu kB\n" + "VmShm:\t%8lu kB\n" "VmData:\t%8lu kB\n" "VmStk:\t%8lu kB\n" "VmExe:\t%8lu kB\n" @@ -65,6 +71,9 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) mm->pinned_vm << (PAGE_SHIFT-10), hiwater_rss << (PAGE_SHIFT-10), total_rss << (PAGE_SHIFT-10), + anon << (PAGE_SHIFT-10), + file << (PAGE_SHIFT-10), + shmem << (PAGE_SHIFT-10), data << (PAGE_SHIFT-10), mm->stack_vm << (PAGE_SHIFT-10), text, lib, ptes >> 10, @@ -82,7 +91,7 @@ unsigned long task_statm(struct mm_struct *mm, unsigned long *data, unsigned long *resident) { *shared = get_mm_counter(mm, MM_FILEPAGES) + - get_mm_counter(mm, MM_SHMEMPAGES); + get_mm_counter_shmem(mm); *text = (PAGE_ALIGN(mm->end_code) - (mm->start_code & PAGE_MASK)) >> PAGE_SHIFT; *data = mm->total_vm - mm->shared_vm; -- 2.4.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/