linux-kernel - [PATCH 0/2 -mmotm] oom: show single slab cache in oom whose size

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Date:   Thu, 26 Oct 2017 06:48:58 +0800
From:   "Yang Shi" <yang.s@...baba-inc.com>
To:     cl@...ux.com, penberg@...nel.org, rientjes@...gle.com,
        iamjoonsoo.kim@....com, akpm@...ux-foundation.org,
        mhocko@...nel.org
Cc:     "Yang Shi" <yang.s@...baba-inc.com>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 0/2 -mmotm] oom: show single slab cache in oom whose size > 10% of total system memory


Per the suggestion from David [1], this implementation dumps single slab cache if its size is over 10% of total system memory. In current implementation, the ration is fixed as 10%.

To get the size of total system memory patch #1 extract the common code from show_mem() so that the code can be used by checking the ratio.

The patchset is based on the mmotm tree.

[1] https://marc.info/?l=linux-mm&m=150819933626604&w=2

Yang Shi (2):
      mm: extract common code for calculating total memory size
      mm: oom: dump single excessive slab cache when oom

 include/linux/mm.h | 25 +++++++++++++++++++++++++
 lib/show_mem.c     | 20 +-------------------
 mm/oom_kill.c      | 22 +---------------------
 mm/slab.h          |  4 ++--
 mm/slab_common.c   | 21 ++++++++++++++++-----
 5 files changed, 45 insertions(+), 47 deletions(-)