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Date:   Wed, 25 Oct 2017 09:53:35 -0700
From:   Daniel Walker <>
To:     "Ruslan Ruslichenko -X (rruslich - GLOBALLOGIC INC at Cisco)" 
        <>, Johannes Weiner <>,
        Taras Kondratiuk <>
Cc:     Michal Hocko <>,,,
Subject: Re: Detecting page cache trashing state

On 09/28/2017 08:49 AM, Ruslan Ruslichenko -X (rruslich - GLOBALLOGIC 
INC at Cisco) wrote:
> Hi Johannes,
> Hopefully I was able to rebase the patch on top v4.9.26 (latest 
> supported version by us right now)
> and test a bit.
> The overall idea definitely looks promising, although I have one 
> question on usage.
> Will it be able to account the time which processes spend on handling 
> major page faults
> (including fs and iowait time) of refaulting page?

Johannes, did you get a chance to review the changes from Ruslan ?


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