From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f200.google.com (mail-wr0-f200.google.com [209.85.128.200]) by kanga.kvack.org (Postfix) with ESMTP id 3C1736B0279 for ; Wed, 21 Jun 2017 17:19:42 -0400 (EDT) Received: by mail-wr0-f200.google.com with SMTP id f49so19455153wrf.5 for ; Wed, 21 Jun 2017 14:19:42 -0700 (PDT) Received: from mx0a-00082601.pphosted.com (mx0b-00082601.pphosted.com. [67.231.153.30]) by mx.google.com with ESMTPS id 2si3692673wri.139.2017.06.21.14.19.40 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 21 Jun 2017 14:19:40 -0700 (PDT) Received: from pps.filterd (m0001255.ppops.net [127.0.0.1]) by mx0b-00082601.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v5LLH2IB007077 for ; Wed, 21 Jun 2017 14:19:39 -0700 Received: from maileast.thefacebook.com ([199.201.65.23]) by mx0b-00082601.pphosted.com with ESMTP id 2b7xavrg4t-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Wed, 21 Jun 2017 14:19:39 -0700 From: Roman Gushchin Subject: [v3 0/6] cgroup-aware OOM killer Date: Wed, 21 Jun 2017 22:19:10 +0100 Message-ID: <1498079956-24467-1-git-send-email-guro@fb.com> MIME-Version: 1.0 Content-Type: text/plain Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org Cc: Roman Gushchin This patchset makes the OOM killer cgroup-aware. Patch 1 causes out_of_memory() look at the oom_victim counter to decide if a new victim is required. Patch 2 is main patch which implements cgroup-aware OOM killer. Patch 3 adds some debug output, which can be refined later. Patch 4 introduces per-cgroup oom_score_adj knob. Patch 5 fixes a problem with too many processes receiving an access to the memory reserves. Patch 6 is docs update. v1: https://lkml.org/lkml/2017/5/18/969 v2: - Reworked victim selection based on feedback from Michal Hocko, Vladimir Davydov and Johannes Weiner - "Kill all tasks" is now an opt-in option, by default only one process will be killed - Added per-cgroup oom_score_adj - Refined oom score calculations, suggested by Vladimir Davydov - Converted to a patchset v3: - Fixed swap accounting - Switched to use oom_victims counter to prevent unnecessary kills - TIF_MEMDIE is set only when necessary - Moved all oom victim killing code into oom_kill.c - Merged commits 1-4 into 6 - Separated oom_score_adj logic into a separate commit 4 - Separated debug output into a separate commit 3 Roman Gushchin (6): mm, oom: use oom_victims counter to synchronize oom victim selection mm, oom: cgroup-aware OOM killer mm, oom: cgroup-aware OOM killer debug info mm, oom: introduce oom_score_adj for memory cgroups mm, oom: don't mark all oom victims tasks with TIF_MEMDIE mm,oom,docs: describe the cgroup-aware OOM killer Documentation/cgroup-v2.txt | 44 ++++++++++ include/linux/memcontrol.h | 23 +++++ include/linux/oom.h | 3 + kernel/exit.c | 2 +- mm/memcontrol.c | 209 ++++++++++++++++++++++++++++++++++++++++++++ mm/oom_kill.c | 202 ++++++++++++++++++++++++++++-------------- 6 files changed, 416 insertions(+), 67 deletions(-) -- 2.7.4 -- 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