From: Goffredo Baroncelli <kreijack@gmail.com>
To: Martin Steigerwald <Martin@lichtvoll.de>
Cc: linux-btrfs@vger.kernel.org, "Hugo Mills" <hugo@carfax.org.uk>,
"Michael Kjörling" <michael@kjorling.se>,
cwillu <cwillu@cwillu.com>,
"Chris Murphy" <lists@colorremedies.com>
Subject: Re: [PATCH][BTRFS-PROGS] Enhance btrfs fi df
Date: Fri, 02 Nov 2012 13:02:32 +0100 [thread overview]
Message-ID: <5093B658.3000007@gmail.com> (raw)
In-Reply-To: <201211021218.29778.Martin@lichtvoll.de>
On 2012-11-02 12:18, Martin Steigerwald wrote:
> I can test on some other boxes next week, if you want to.
Yes please,
>
> I just wonder about one thing:
>
>
> merkaba:[…]/btrfs-progs-unstable> ./btrfs fi df /
> Disk size: 18.62GB
> Disk allocated: 18.62GB
> Disk unallocated: 0.00
> Used: 11.26GB
> Free (Estimated): 5.61GB (Max: 5.61GB, min: 5.61GB)
> Data to disk ratio: 91 %
>
>
> merkaba:[…]/btrfs-progs-unstable> ./btrfs filesystem disk-usage /
> Data,Single: Size:15.10GB, Used:10.65GB
> /dev/dm-0 15.10GB
>
> Metadata,Single: Size:8.00MB, Used:0.00
> /dev/dm-0 8.00MB
>
> Metadata,DUP: Size:1.75GB, Used:627.84MB
> /dev/dm-0 3.50GB
>
> System,Single: Size:4.00MB, Used:0.00
> /dev/dm-0 4.00MB
>
> System,DUP: Size:8.00MB, Used:4.00KB
> /dev/dm-0 16.00MB
>
> Unallocated:
> /dev/dm-0 0.00
>
>
> merkaba:[…]/btrfs-progs-unstable> ./btrfs filesystem disk-usage -t /
> Data Metadata Metadata System System
> Single Single DUP Single DUP Unallocated
>
> /dev/dm-0 15.10GB 8.00MB 3.50GB 4.00MB 16.00MB 0.00
> ======= ======== ======== ====== ======= ===========
> Total 15.10GB 8.00MB 1.75GB 4.00MB 8.00MB 0.00
> Used 10.65GB 0.00 627.84MB 0.00 4.00KB
>
>
> Metadata, DUP is displayed as 3,50GB on the device level and as 1,75GB
> in total. I understand the logic behind this, but this could be a bit
> confusing.
>
> But it makes sense: Showing real allocation on device level makes sense,
> cause thats what really allocated on disk. Total makes some sense, cause
> thats what is being used from the tree by BTRFS.
Yes, me too. At the first I was confused when you noticed this
discrepancy. So I have to admit that it is not so obvious to understand.
However we didn't find any way to make it more clear...
> It still looks confusing at first…
We could use "Chunk(s) capacity" instead of total/size ? I would like an
opinion from a "english people" point of view..
GB
--
gpg @keyserver.linux.it: Goffredo Baroncelli (kreijackATinwind.it>
Key fingerprint BBF5 1610 0B64 DAC6 5F7D 17B2 0EDA 9B37 8B82 E0B5
next prev parent reply other threads:[~2012-11-02 12:01 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-02 10:15 [PATCH][BTRFS-PROGS] Enhance btrfs fi df Goffredo Baroncelli
2012-11-02 10:15 ` [PATCH 1/8] Enhance the command btrfs filesystem df Goffredo Baroncelli
2012-11-02 10:15 ` [PATCH 2/8] Create the man page entry for the command btrfs fi df Goffredo Baroncelli
2012-11-02 10:15 ` [PATCH 3/8] Move open_file_or_dir() in utils.c Goffredo Baroncelli
2012-11-02 10:15 ` [PATCH 4/8] Move scrub_fs_info() and scrub_dev_info() " Goffredo Baroncelli
2012-11-02 10:15 ` [PATCH 5/8] Add command btrfs filesystem disk-usage Goffredo Baroncelli
2012-11-02 10:15 ` [PATCH 6/8] Create entry in man page for " Goffredo Baroncelli
2012-11-02 10:15 ` [PATCH 7/8] Add btrfs device disk-usage command Goffredo Baroncelli
2012-11-02 10:15 ` [PATCH 8/8] Create a new entry in btrfs man page for btrfs device disk-usage Goffredo Baroncelli
2012-11-02 11:18 ` [PATCH][BTRFS-PROGS] Enhance btrfs fi df Martin Steigerwald
2012-11-02 12:02 ` Goffredo Baroncelli [this message]
2012-11-02 19:05 ` Gabriel
2012-11-02 19:31 ` Goffredo Baroncelli
2012-11-02 20:40 ` Gabriel
2012-11-02 21:46 ` Michael Kjörling
2012-11-02 23:34 ` Gabriel
2012-11-02 22:06 ` Hugo Mills
2012-11-02 23:23 ` Gabriel
2012-11-02 23:44 ` Hugo Mills
2012-11-03 0:14 ` Gabriel
2012-11-03 12:28 ` Goffredo Baroncelli
2012-11-03 12:35 ` Goffredo Baroncelli
2012-11-03 22:04 ` cwillu
2012-11-03 12:11 ` Goffredo Baroncelli
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