From: Christoph Lameter <cl@linux.com>
To: akpm@linux-foundation.org
Cc: Michal Hocko <mhocko@kernel.org>, Tejun Heo <htejun@gmail.com>,
Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
torvalds@linux-foundation.org, hannes@cmpxchg.org,
mgorman@suse.de
Subject: [patch 0/3] vmstat: Various enhancements
Date: Tue, 27 Oct 2015 21:41:14 -0500 [thread overview]
Message-ID: <20151028024114.370693277@linux.com> (raw)
This addresses a couple of issues that came up last week in
the discussion about issues related to the blocking of
the execution of vmstat updates.
1. It makes vmstat updates execution deferrable again so that
no special tick is generated for vmstat execution. vmstat
is quieted down when a processor enters idle mode. This
means that no differentials exist anymore when a processor
is in idle mode.
2. Create a separate workqueue so that the vmstat updater
is not blocked by other work requeusts. This creates a
new kernel thread <sigh> and avoids the issue of
differentials not folded in a timely fashion.
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next reply other threads:[~2015-10-28 2:41 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-28 2:41 Christoph Lameter [this message]
2015-10-28 2:41 ` [patch 1/3] vmstat: Make pageset processing optional in refresh_cpu_vm_stats Christoph Lameter
2015-10-28 2:41 ` [patch 2/3] vmstat: make vmstat_updater deferrable again and shut down on idle Christoph Lameter
2015-10-28 2:41 ` [patch 3/3] vmstat: Create our own workqueue Christoph Lameter
2015-10-28 2:43 ` Tejun Heo
2015-10-28 3:04 ` Christoph Lameter
2015-10-28 11:57 ` Tetsuo Handa
2015-10-28 22:32 ` Christoph Lameter
2015-10-29 2:24 ` Tejun Heo
2015-10-29 3:08 ` Tejun Heo
2015-10-30 1:01 ` Christoph Lameter
2015-10-31 1:15 ` Tejun Heo
2015-10-31 2:43 ` Tetsuo Handa
2015-11-02 16:12 ` Christoph Lameter
2015-11-02 16:52 ` Tetsuo Handa
2015-11-02 18:10 ` Christoph Lameter
2015-11-02 19:11 ` Tejun Heo
2015-11-06 11:28 ` Tetsuo Handa
2015-11-06 12:56 ` Christoph Lameter
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