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: Re: [PATCH v3 0/2] nohz: fix idle accounting in NO_HZ kernels
Date: Tue, 15 Apr 2014 12:11:41 +0900 [thread overview]
Message-ID: <534CA36D.7050708@jp.fujitsu.com> (raw)
In-Reply-To: <53465F54.708@jp.fujitsu.com>
Ping?
(2014/04/10 18:07), Hidetoshi Seto wrote:
> Hi all,
>
> This patch set (rebased on v3.14) is my 3rd 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 v3 takes new approach to fix the problem, and now use seqcount
> while v1 and v2 uses seqlock.
>
> Of course still reviews are welcome!
>
> Thanks,
> H.Seto
>
> Hidetoshi Seto (2):
> nohz: stop updating sleep stats from get_cpu_{idle,iowait}_time_us()
> nohz: use delayed iowait accounting to avoid race on idle time stats
>
> include/linux/tick.h | 6 ++-
> kernel/time/tick-sched.c | 116 ++++++++++++++++++++++++++++------------------
> 2 files changed, 74 insertions(+), 48 deletions(-)
prev parent reply other threads:[~2014-04-15 3:11 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-10 9:07 [PATCH v3 0/2] nohz: fix idle accounting in NO_HZ kernels Hidetoshi Seto
2014-04-10 9:11 ` [PATCH 1/2] nohz: stop updating sleep stats from get_cpu_{idle,iowait}_time_us() Hidetoshi Seto
2014-04-15 8:48 ` Peter Zijlstra
2014-04-15 8:49 ` Peter Zijlstra
2014-04-10 9:13 ` [PATCH 2/2] nohz: use delayed iowait accounting to avoid race on idle time stats Hidetoshi Seto
2014-04-15 10:04 ` Peter Zijlstra
2014-04-16 6:30 ` Hidetoshi Seto
2014-04-15 10:19 ` Peter Zijlstra
2014-04-16 6:33 ` Hidetoshi Seto
2014-04-16 9:36 ` Peter Zijlstra
2014-04-17 0:42 ` Hidetoshi Seto
2014-04-17 10:05 ` Peter Zijlstra
2014-04-17 10:09 ` Peter Zijlstra
2014-04-18 5:52 ` Hidetoshi Seto
2014-04-18 8:44 ` Peter Zijlstra
2014-04-15 3:11 ` Hidetoshi Seto [this message]
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