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Date: Tue, 11 Sep 2012 19:12:58 +0800
From: ching <lsching17@gmail.com>
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Subject: Re: enquiry about defrag
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On 09/09/2012 08:03 AM, ching wrote:
> Hi all,
>
> i am new on btrfs, i am testing KVM on btrfs (host: kernel x86-64 3.5.3), the performance is reasonable.
>
> I have two question on defrag, can someone help me?
>
> 1. According to btrfs wiki, defragment a COW file will produce two unrelated files.
>
>     Does it apply to the "autodefrag" mount option?
>
> 2. Is there any command for the fragmentation status of a file/dir ? e.g. fragment size, number of fragments.

can anybody helps on question 1?