Date: Mon, 13 Jul 2009 15:32:52 +0400
From: Alexey Vlasov <renton@renton.name>
To: Andi Kleen <andi@firstfloor.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Counters in df, du
Message-ID: <20090713113252.GB5569@beaver.vrungel.ru>
References: <20090713081106.GA5569@beaver.vrungel.ru> <87fxd19cfq.fsf@basil.nowhere.org>
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On Mon, Jul 13, 2009 at 11:09:29AM +0200, Andi Kleen wrote:
> Alexey Vlasov <renton@renton.name> writes:
> >
> > I know that df, du can show different values if some files were deleted,
> > but the processes which opened these files are still acting.
> 
> You can check for that by doing ls -l /proc/*/fd | grep deleted
> 
> It won't tell you the file size though.

There comes a big list, like this:

lowx------ 1 root root 64 Jul 13 14:58 1763 -> /tmp/ZCUDXqiMTp (deleted)
lrwx------ 1 root root 64 Jul 13 14:58 1763 -> /tmp/ZCUDXqiMTp (deleted)
lrwx------ 1 root root 64 Jul 13 14:58 1763 -> /tmp/ZCUDXqiMTp (deleted)
[cut]
lrwx------ 1 root root 64 Jul 13 15:29 317 -> /tmp/ZCUDXiOHCk (deleted)
lrwx------ 1 root root 64 Jul 13 15:29 317 -> /tmp/ZCUDXiOHCk (deleted)
lrwx------ 1 root root 64 Jul 13 15:29 317 -> /tmp/ZCUDXiOHCk (deleted)

But you can see the file date, these are new files and by next search
you won't see them any more.

The most interesting is that the /tmp size constantly grows.

-- 
BRGDS. Alexey Vlasov.
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