User: Password:
|
|
Subscribe / Log in / New account

Introduce timer slack controller

From:  "Kirill A. Shutemov" <kirill@shutemov.name>
To:  Paul Menage <menage@google.com>, Li Zefan <lizf@cn.fujitsu.com>, Andrew Morton <akpm@linux-foundation.org>, Thomas Gleixner <tglx@linutronix.de>
Subject:  [PATCH, v9 0/3] Introduce timer slack controller
Date:  Mon, 14 Mar 2011 16:05:21 +0200
Message-ID:  <1300111524-5666-1-git-send-email-kirill@shutemov.name>
Cc:  containers@lists.linux-foundation.org, jacob.jun.pan@linux.intel.com, Arjan van de Ven <arjan@linux.intel.com>, linux-kernel@vger.kernel.org, Matt Helsley <matthltc@us.ibm.com>, linux-api@vger.kernel.org, "Kirill A. Shutemov" <kirill@shutemov.name>
Archive-link:  Article

Changelog:

v9:
 - update documentation
 - minor cleanup
v8:
 - change hiearchy rules
 - introduce timer_slack.effective_slack_ns
 - get_task_timer_slack() -> task_get_effective_timer_slack()
 - task_get_effective_timer_slack() splited in separate patch
 - implement PR_GET_EFFECTIVE_TIMERSLACK
v7:
 - totally reworked interface and rewritten from scratch
   (See Documentation/cgroups/timer_slack.txt for more information)
v6:
 - add documentation
 - use notifier_call_chain() instead of check hook
 - fix validate_change()
 - cleanup
v5:
 - -EBUSY on writing to timer_slack.min_slack_ns/max_slack_ns if a child has
   wider min-max range
v4:
 - hierarchy support
 - drop dummy_timer_slack_check()
 - workaround lockdep false (?) positive
 - allow 0 as timer slack value
v3:
 - rework interface
 - s/EXPORT_SYMBOL/EXPORT_SYMBOL_GPL/
v2:
 - fixed with CONFIG_CGROUP_TIMER_SLACK=y
v1:
 - initial revision

Kirill A. Shutemov (3):
  hrtimer: introduce effective timer slack
  hrtimer: implement PR_GET_EFFECTIVE_TIMERSLACK
  cgroups: introduce timer slack controller

 Documentation/cgroups/timer_slack.txt |   72 +++++++++++++++++++
 fs/select.c                           |    7 +--
 include/linux/cgroup_subsys.h         |    6 ++
 include/linux/prctl.h                 |    6 ++
 include/linux/sched.h                 |   10 +++
 init/Kconfig                          |    8 ++
 kernel/Makefile                       |    1 +
 kernel/cgroup_timer_slack.c           |  124 +++++++++++++++++++++++++++++++++
 kernel/fork.c                         |    4 +
 kernel/futex.c                        |    4 +-
 kernel/hrtimer.c                      |    2 +-
 kernel/sys.c                          |    3 +
 12 files changed, 239 insertions(+), 8 deletions(-)
 create mode 100644 Documentation/cgroups/timer_slack.txt
 create mode 100644 kernel/cgroup_timer_slack.c

-- 
1.7.4.1

--
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/


Copyright © 2011, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds