linux-kernel - Re: [RFC PATCH v3 7/7] mm/damon: Add "damon_migrate

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Date: Fri,  5 Apr 2024 12:27:21 -0700
From: SeongJae Park <sj@...nel.org>
To: Honggyu Kim <honggyu.kim@...com>
Cc: SeongJae Park <sj@...nel.org>,
	damon@...ts.linux.dev,
	linux-mm@...ck.org,
	akpm@...ux-foundation.org,
	apopple@...dia.com,
	baolin.wang@...ux.alibaba.com,
	dave.jiang@...el.com,
	hyeongtak.ji@...com,
	kernel_team@...ynix.com,
	linmiaohe@...wei.com,
	linux-kernel@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org,
	mathieu.desnoyers@...icios.com,
	mhiramat@...nel.org,
	rakie.kim@...com,
	rostedt@...dmis.org,
	surenb@...gle.com,
	yangx.jy@...itsu.com,
	ying.huang@...el.com,
	ziy@...dia.com,
	42.hyeyoo@...il.com,
	art.jeongseob@...il.com
Subject: Re: [RFC PATCH v3 7/7] mm/damon: Add "damon_migrate_{hot,cold}" vmstat

On Fri,  5 Apr 2024 15:08:56 +0900 Honggyu Kim <honggyu.kim@...com> wrote:

> This patch adds "damon_migrate_{hot,cold}" under node specific vmstat
> counters at the following location.
> 
>   /sys/devices/system/node/node*/vmstat
> 
> The counted values are accumulcated to the global vmstat so it also
> introduces the same counter at /proc/vmstat as well.

DAMON provides its own DAMOS stats via DAMON sysfs interface.  Do we really
need this change?


Thanks,
SJ

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