From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f197.google.com (mail-wr0-f197.google.com [209.85.128.197]) by kanga.kvack.org (Postfix) with ESMTP id 14303831F4 for ; Fri, 19 May 2017 02:59:52 -0400 (EDT) Received: by mail-wr0-f197.google.com with SMTP id y43so3165087wrc.11 for ; Thu, 18 May 2017 23:59:52 -0700 (PDT) Received: from forwardcorp1j.cmail.yandex.net (forwardcorp1j.cmail.yandex.net. [2a02:6b8:0:1630::180]) by mx.google.com with ESMTPS id i1si3880294ljd.166.2017.05.18.23.59.50 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 18 May 2017 23:59:50 -0700 (PDT) Subject: [PATCH] mm/vmstat: add oom_kill counter From: Konstantin Khlebnikov Date: Fri, 19 May 2017 09:59:45 +0300 Message-ID: <149517718482.32770.939520643229572472.stgit@buzz> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org, Andrew Morton , linux-kernel@vger.kernel.org Show count of global oom killer invocations in /proc/vmstat Signed-off-by: Konstantin Khlebnikov --- include/linux/vm_event_item.h | 1 + mm/oom_kill.c | 1 + mm/vmstat.c | 1 + 3 files changed, 3 insertions(+) diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h index d84ae90ccd5c..1707e0a7d943 100644 --- a/include/linux/vm_event_item.h +++ b/include/linux/vm_event_item.h @@ -41,6 +41,7 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, KSWAPD_LOW_WMARK_HIT_QUICKLY, KSWAPD_HIGH_WMARK_HIT_QUICKLY, PAGEOUTRUN, PGROTATED, DROP_PAGECACHE, DROP_SLAB, + OOM_KILL, #ifdef CONFIG_NUMA_BALANCING NUMA_PTE_UPDATES, NUMA_HUGE_PTE_UPDATES, diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 04c9143a8625..c734c42826cf 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -883,6 +883,7 @@ static void oom_kill_process(struct oom_control *oc, const char *message) */ do_send_sig_info(SIGKILL, SEND_SIG_FORCED, victim, true); mark_oom_victim(victim); + count_vm_event(OOM_KILL); pr_err("Killed process %d (%s) total-vm:%lukB, anon-rss:%lukB, file-rss:%lukB, shmem-rss:%lukB\n", task_pid_nr(victim), victim->comm, K(victim->mm->total_vm), K(get_mm_counter(victim->mm, MM_ANONPAGES)), diff --git a/mm/vmstat.c b/mm/vmstat.c index 76f73670200a..fe80b81a86e0 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1018,6 +1018,7 @@ const char * const vmstat_text[] = { "drop_pagecache", "drop_slab", + "oom_kill", #ifdef CONFIG_NUMA_BALANCING "numa_pte_updates", -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org