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From: Vladimir Davydov <vdavydov@virtuozzo.com>
To: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Michal Hocko <mhocko@kernel.org>,
	linux-mm@kvack.org, cgroups@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 7/7] Documentation: cgroup: add memory.swap.{current,max} description
Date: Fri, 18 Dec 2015 18:39:24 +0300	[thread overview]
Message-ID: <20151218153924.GT28521@esperanza> (raw)
In-Reply-To: <567374AB.3010101@jp.fujitsu.com>

On Fri, Dec 18, 2015 at 11:51:23AM +0900, Kamezawa Hiroyuki wrote:
...
> Could you give here a hint how to calculate amount of swapcache,
> counted both in memory.current and swap.current ?

Currently it's impossible, but once memory.stat has settled in the
unified hierarchy, it might be worth adding a stat counter for such
pages (equivalent to SwapCached in the global /proc/meminfo).

Thanks,
Vladimir

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WARNING: multiple messages have this Message-ID (diff)
From: Vladimir Davydov <vdavydov@virtuozzo.com>
To: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Michal Hocko <mhocko@kernel.org>, <linux-mm@kvack.org>,
	<cgroups@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 7/7] Documentation: cgroup: add memory.swap.{current,max} description
Date: Fri, 18 Dec 2015 18:39:24 +0300	[thread overview]
Message-ID: <20151218153924.GT28521@esperanza> (raw)
In-Reply-To: <567374AB.3010101@jp.fujitsu.com>

On Fri, Dec 18, 2015 at 11:51:23AM +0900, Kamezawa Hiroyuki wrote:
...
> Could you give here a hint how to calculate amount of swapcache,
> counted both in memory.current and swap.current ?

Currently it's impossible, but once memory.stat has settled in the
unified hierarchy, it might be worth adding a stat counter for such
pages (equivalent to SwapCached in the global /proc/meminfo).

Thanks,
Vladimir

  reply	other threads:[~2015-12-18 15:39 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-17 12:29 [PATCH v2 0/7] Add swap accounting to cgroup2 Vladimir Davydov
2015-12-17 12:29 ` Vladimir Davydov
2015-12-17 12:29 ` Vladimir Davydov
2015-12-17 12:29 ` [PATCH v2 1/7] mm: memcontrol: charge swap " Vladimir Davydov
2015-12-17 12:29   ` Vladimir Davydov
2015-12-17 16:09   ` Johannes Weiner
2015-12-17 16:09     ` Johannes Weiner
2016-01-13 16:44   ` Michal Hocko
2016-01-13 16:44     ` Michal Hocko
2015-12-17 12:29 ` [PATCH v2 2/7] mm: vmscan: pass memcg to get_scan_count() Vladimir Davydov
2015-12-17 12:29   ` Vladimir Davydov
     [not found]   ` <daacf7e0dbe2ba11ed44facc36ac2fed3546ffe0.1450352792.git.vdavydov-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>
2016-01-13 16:47     ` Michal Hocko
2016-01-13 16:47       ` Michal Hocko
2016-01-13 16:47       ` Michal Hocko
2015-12-17 12:29 ` [PATCH v2 3/7] mm: memcontrol: replace mem_cgroup_lruvec_online with mem_cgroup_online Vladimir Davydov
2015-12-17 12:29   ` Vladimir Davydov
2016-01-13 16:47   ` Michal Hocko
2016-01-13 16:47     ` Michal Hocko
2015-12-17 12:29 ` [PATCH v2 4/7] swap.h: move memcg related stuff to the end of the file Vladimir Davydov
2015-12-17 12:29   ` Vladimir Davydov
     [not found]   ` <77dd7375cd8360829093b4c347db2e557334da21.1450352792.git.vdavydov-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>
2016-01-13 16:48     ` Michal Hocko
2016-01-13 16:48       ` Michal Hocko
2016-01-13 16:48       ` Michal Hocko
2015-12-17 12:29 ` [PATCH v2 5/7] mm: vmscan: do not scan anon pages if memcg swap limit is hit Vladimir Davydov
2015-12-17 12:29   ` Vladimir Davydov
     [not found]   ` <6f6fa6cbfe005917911f89b2b12d5fbfa0b071e4.1450352792.git.vdavydov-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>
2016-01-13 16:54     ` Michal Hocko
2016-01-13 16:54       ` Michal Hocko
2016-01-13 16:54       ` Michal Hocko
2015-12-17 12:29 ` [PATCH v2 6/7] mm: free swap cache aggressively if memcg swap is full Vladimir Davydov
2015-12-17 12:29   ` Vladimir Davydov
     [not found]   ` <83c9cff28990636841b966f8d6e4a43c1fd342e7.1450352792.git.vdavydov-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>
2016-01-13 16:59     ` Michal Hocko
2016-01-13 16:59       ` Michal Hocko
2016-01-13 16:59       ` Michal Hocko
2015-12-17 12:30 ` [PATCH v2 7/7] Documentation: cgroup: add memory.swap.{current,max} description Vladimir Davydov
2015-12-17 12:30   ` Vladimir Davydov
     [not found]   ` <dbb4bf6bc071997982855c8f7d403c22cea60ffb.1450352792.git.vdavydov-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>
2015-12-17 16:16     ` Johannes Weiner
2015-12-17 16:16       ` Johannes Weiner
2015-12-17 16:16       ` Johannes Weiner
2016-01-13 17:02     ` Michal Hocko
2016-01-13 17:02       ` Michal Hocko
2016-01-13 17:02       ` Michal Hocko
2015-12-18  2:51   ` Kamezawa Hiroyuki
2015-12-18  2:51     ` Kamezawa Hiroyuki
2015-12-18 15:39     ` Vladimir Davydov [this message]
2015-12-18 15:39       ` Vladimir Davydov

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