From: "Michal Koutný" <mkoutny@suse.com>
To: Yosry Ahmed <yosryahmed@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Shakeel Butt <shakeelb@google.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@kernel.org>,
Roman Gushchin <roman.gushchin@linux.dev>,
Muchun Song <muchun.song@linux.dev>,
linux-mm@kvack.org, cgroups@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/2] mm: memcg: refactor page state unit helpers
Date: Tue, 3 Oct 2023 20:11:03 +0200 [thread overview]
Message-ID: <lflzirgjvnodndnuncbulipka6qcif5yijtbqpvbcr3zp3532u@6b37ks523gnt> (raw)
In-Reply-To: <20230922175741.635002-2-yosryahmed@google.com>
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On Fri, Sep 22, 2023 at 05:57:39PM +0000, Yosry Ahmed <yosryahmed@google.com> wrote:
> memcg_page_state_unit() is currently used to identify the unit of a
> memcg state item so that all stats in memory.stat are in bytes. However,
> it lies about the units of WORKINGSET_* stats. These stats actually
> represent pages, but we present them to userspace as a scalar number of
> events. In retrospect, maybe those stats should have been memcg "events"
> rather than memcg "state".
Why isn't it possible to move WORKINGSET_* stats under the events now?
(Instead of using internal and external units.)
Thanks,
Michal
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next prev parent reply other threads:[~2023-10-03 18:11 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-22 17:57 [PATCH v2 0/2] mm: memcg: fix tracking of pending stats updates values Yosry Ahmed
2023-09-22 17:57 ` [PATCH v2 1/2] mm: memcg: refactor page state unit helpers Yosry Ahmed
2023-10-03 13:03 ` Johannes Weiner
2023-10-03 18:11 ` Michal Koutný [this message]
2023-10-03 19:47 ` Yosry Ahmed
2023-10-04 9:02 ` Michal Koutný
2023-10-04 16:58 ` Yosry Ahmed
2023-10-04 18:36 ` Johannes Weiner
2023-10-05 9:06 ` Michal Koutný
2023-10-05 9:31 ` Yosry Ahmed
2023-10-05 16:30 ` Michal Koutný
2023-10-05 17:30 ` Yosry Ahmed
2023-10-18 19:27 ` Andrew Morton
2023-09-22 17:57 ` [PATCH v2 2/2] mm: memcg: normalize the value passed into memcg_rstat_updated() Yosry Ahmed
2023-10-03 13:13 ` Johannes Weiner
2023-10-03 15:53 ` Yosry Ahmed
2023-10-03 18:22 ` Michal Koutný
2023-10-03 19:51 ` Yosry Ahmed
2023-09-25 13:50 ` [PATCH v2 0/2] mm: memcg: fix tracking of pending stats updates values Michal Hocko
2023-09-25 17:11 ` Yosry Ahmed
2023-10-03 7:57 ` Michal Hocko
2023-10-03 8:03 ` Yosry Ahmed
2023-10-03 8:09 ` Michal Hocko
2023-10-03 8:49 ` Yosry Ahmed
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