From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: Lukas Hejtmanek <xhejtman@ics.muni.cz>
Cc: kosaki.motohiro@jp.fujitsu.com,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>
Subject: Re: 2.6.28-rc8 big regression in VM
Date: Mon, 15 Dec 2008 19:56:57 +0900 (JST) [thread overview]
Message-ID: <20081215193305.06C4.KOSAKI.MOTOHIRO@jp.fujitsu.com> (raw)
In-Reply-To: <20081215095311.GB4422@ics.muni.cz>
> On Mon, Dec 15, 2008 at 11:05:24AM +0900, KOSAKI Motohiro wrote:
> > I also don't reproduce your problem.
> > Could you get output of "cat /proc/meminfo", not only free command?
>
> attached meminfo and vmstat after dropping caches.
MemTotal: 2016688 kB
MemFree: 1528748 kB
Buffers: 424 kB
Cached: 140060 kB
SwapCached: 0 kB
Active(anon): 329884 kB
Inactive(anon): 4 kB
Active(file): 23368 kB
Inactive(file): 47328 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 1542232 kB
SwapFree: 1542232 kB
Dirty: 64 kB
Writeback: 0 kB
AnonPages: 260100 kB
Mapped: 85036 kB
Usually, Cached - tmpfs ~= Active(file) + Inactive(file).
tmpfs file isn't droppable.
We should see Active(file) + Inactive(file) (= 70696kB) instead Cached.
In addition, drop_cache sysctl can't drop Mapped memory.
Then, this value isn't so wonder value, IMHO.
next prev parent reply other threads:[~2008-12-15 10:57 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-12 18:38 Lukas Hejtmanek
2008-12-13 1:21 ` Wu Fengguang
2008-12-13 9:58 ` Lukas Hejtmanek
2008-12-13 14:02 ` Wu Fengguang
2008-12-16 21:08 ` Bill Davidsen
2008-12-15 1:16 ` Wu Fengguang
2008-12-15 2:05 ` KOSAKI Motohiro
2008-12-15 9:53 ` Lukas Hejtmanek
2008-12-15 10:56 ` KOSAKI Motohiro [this message]
2008-12-15 9:44 ` Lukas Hejtmanek
2008-12-16 4:59 ` Wu Fengguang
[not found] ` <20081216195219.GA4480@ics.muni.cz>
2008-12-17 12:27 ` Wu Fengguang
2008-12-17 12:33 ` Lukas Hejtmanek
2008-12-17 12:44 ` Wu Fengguang
2008-12-17 12:49 ` Lukas Hejtmanek
2008-12-17 13:02 ` Wu Fengguang
2008-12-25 10:50 ` Wu Fengguang
2008-12-25 10:58 ` Lukas Hejtmanek
2008-12-25 11:18 ` Wu Fengguang
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