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From: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
To: linux-kernel@vger.kernel.org
Cc: Fernando Luis Vazquez Cao <fernando_b1@lab.ntt.co.jp>,
	Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Arjan van de Ven <arjan@linux.intel.com>,
	Oleg Nesterov <oleg@redhat.com>,
	Preeti U Murthy <preeti@linux.vnet.ibm.com>,
	Denys Vlasenko <vda.linux@googlemail.com>,
	stable@vger.kernel.org
Subject: [PATCH v4 0/2] nohz: fix idle accounting in NO_HZ kernels
Date: Thu, 17 Apr 2014 18:35:07 +0900	[thread overview]
Message-ID: <534FA04B.8080906@jp.fujitsu.com> (raw)

Hi all,

This patch set (rebased on v3.15-rc1) is my 4th try to fix an issue
that idle/iowait of /proc/stat can go backward. Originally reported
by Tetsuo and Fernando at last year, Mar 2013.

This v4 updates v3's approach, and adds description/comments to
make patch's intent to be clear (I hope so).

Of course still reviews are welcome.

Thanks,
H.Seto

Hidetoshi Seto (2):
      nohz: make updating sleep stats local
      nohz: delayed iowait accounting for nohz idle time stats

 include/linux/tick.h     |    6 +-
 kernel/time/tick-sched.c |  179 ++++++++++++++++++++++++++++++++++------------
 2 files changed, 136 insertions(+), 49 deletions(-)



             reply	other threads:[~2014-04-17  9:35 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-17  9:35 Hidetoshi Seto [this message]
2014-04-17  9:38 ` [PATCH 1/2] nohz: make updating sleep stats local Hidetoshi Seto
2014-04-17  9:41 ` [PATCH 2/2] nohz: delayed iowait accounting for nohz idle time stats Hidetoshi Seto
2014-04-22 19:45   ` Peter Zijlstra
2014-04-23  7:40     ` Hidetoshi Seto
2014-04-23  9:41       ` Peter Zijlstra
2014-04-24  5:50         ` Hidetoshi Seto
2014-04-22  6:34 ` [PATCH v4 0/2] nohz: fix idle accounting in NO_HZ kernels Hidetoshi Seto

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