From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail190.messagelabs.com (mail190.messagelabs.com [216.82.249.51]) by kanga.kvack.org (Postfix) with SMTP id 07AAA60021B for ; Wed, 30 Dec 2009 10:58:11 -0500 (EST) Received: by fxm28 with SMTP id 28so3274160fxm.6 for ; Wed, 30 Dec 2009 07:58:10 -0800 (PST) From: "Kirill A. Shutemov" Subject: [PATCH v5 0/4] cgroup notifications API and memory thresholds Date: Wed, 30 Dec 2009 17:57:55 +0200 Message-Id: Sender: owner-linux-mm@kvack.org To: containers@lists.linux-foundation.org, linux-mm@kvack.org Cc: Paul Menage , Li Zefan , Andrew Morton , KAMEZAWA Hiroyuki , Balbir Singh , Pavel Emelyanov , Dan Malek , Vladislav Buzov , Daisuke Nishimura , Alexander Shishkin , linux-kernel@vger.kernel.org, "Kirill A. Shutemov" List-ID: This patchset introduces eventfd-based API for notifications in cgroups and implements memory notifications on top of it. It uses statistics in memory controler to track memory usage. Output of time(1) on building kernel on tmpfs: Root cgroup before changes: make -j2 506.37 user 60.93s system 193% cpu 4:52.77 total Non-root cgroup before changes: make -j2 507.14 user 62.66s system 193% cpu 4:54.74 total Root cgroup after changes (0 thresholds): make -j2 507.13 user 62.20s system 193% cpu 4:53.55 total Non-root cgroup after changes (0 thresholds): make -j2 507.70 user 64.20s system 193% cpu 4:55.70 total Root cgroup after changes (1 thresholds, never crossed): make -j2 506.97 user 62.20s system 193% cpu 4:53.90 total Non-root cgroup after changes (1 thresholds, never crossed): make -j2 507.55 user 64.08s system 193% cpu 4:55.63 total Any comments? v4 -> v5: - rework __mem_cgroup_threshold() a bit; - drop __mem_cgroup_stat_reset_safe(); - fixes based on comments. v3 -> v4: - documentation. v2 -> v3: - remove [RFC]; - rebased to 2.6.33-rc2; - fixes based on comments; - fixed potential race on event removing; - use RCU-protected arrays to track trasholds. v1 -> v2: - use statistics instead of res_counter to track resource usage; - fix bugs with locking. v0 -> v1: - memsw support implemented. Kirill A. Shutemov (4): cgroup: implement eventfd-based generic API for notifications memcg: extract mem_group_usage() from mem_cgroup_read() memcg: rework usage of stats by soft limit memcg: implement memory thresholds Documentation/cgroups/cgroups.txt | 20 ++ Documentation/cgroups/memory.txt | 19 ++- include/linux/cgroup.h | 24 +++ kernel/cgroup.c | 208 ++++++++++++++++++++- mm/memcontrol.c | 384 ++++++++++++++++++++++++++++++++++--- 5 files changed, 623 insertions(+), 32 deletions(-) -- 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