linux-kernel - Re: [PATCH v2] mm: vmscan: fix the page state calculation in too_many

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Message-ID: <alpine.DEB.2.11.1501271058230.25124@gentwo.org>
Date:	Tue, 27 Jan 2015 10:59:59 -0600 (CST)
From:	Christoph Lameter <cl@...ux.com>
To:	Michal Hocko <mhocko@...e.cz>
cc:	Vinayak Menon <vinmenon@...eaurora.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	hannes@...xchg.org, vdavydov@...allels.com, mgorman@...e.de,
	minchan@...nel.org
Subject: Re: [PATCH v2] mm: vmscan: fix the page state calculation in
 too_many_isolated

On Tue, 27 Jan 2015, Michal Hocko wrote:

> I am not following. The idea was to run vmstat_shepherd in a kernel
> thread and waking up as per defined timeout and then check need_update
> for each CPU and call smp_call_function_single to refresh the timer
> rather than building a mask and then calling sm_call_function_many to
> reduce paralel contention on the shared counters.

Thats ok.
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