linux-kernel - Re: [PATCH v2 2/2] memcg: periodically flush the memcg stats

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Message-ID: <YNSQNu4ZW7mEX6LW@blackbook>
Date:   Thu, 24 Jun 2021 16:01:26 +0200
From:   Michal Koutný <mkoutny@...e.com>
To:     Shakeel Butt <shakeelb@...gle.com>
Cc:     Tejun Heo <tj@...nel.org>, Johannes Weiner <hannes@...xchg.org>,
        Muchun Song <songmuchun@...edance.com>,
        Michal Hocko <mhocko@...nel.org>, Roman Gushchin <guro@...com>,
        Huang Ying <ying.huang@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        cgroups@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] memcg: periodically flush the memcg stats

Hello Shakeel.

On Tue, Jun 15, 2021 at 10:44:35AM -0700, Shakeel Butt <shakeelb@...gle.com> wrote:
> At the moment memcg stats are read in four contexts:
> 
> 1. memcg stat user interfaces
> 2. dirty throttling
> 3. page fault
> 4. memory reclaim

Sorry for being dense or ignorant -- what do you refer to with the point
no. 3 (memcg stats reader during page fault)?

Thanks,
Michal

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