From mboxrd@z Thu Jan  1 00:00:00 1970
From: Phillip Susi <psusi@cfl.rr.com>
Subject: Re: find subvolume (used) size?
Date: Tue, 5 Oct 2010 11:33:42 -0400
Message-ID: <4CAB4556.7070205@cfl.rr.com>
References: <4CAB0B6C.3050908@wpkg.org>
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Cc: linux-btrfs@vger.kernel.org
To: Tomasz Chmielewski <mangoo@wpkg.org>
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On 10/5/2010 7:26 AM, Tomasz Chmielewski wrote:
> There is a standard df tool, but it can be a lengthy process for
> filesystems with lots of files.

Maybe you mean du?  df takes almost no time at all and does not care how
many files there are.