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Re: Things to do this week instead of arguing about mixers



On Mon, Apr 27, 2009 at 04:00:32PM -0500, Michael Cronenworth wrote:
> -------- Original Message --------
> Subject: Re: Things to do this week instead of arguing about mixers
> From: Eric Sandeen <sandeen redhat com>
> To: Development discussions related to Fedora <fedora-devel-list redhat com>
> Date: 04/27/2009 03:53 PM
>
>>
>> Try downloading a large (multi-gigabyte) torrent on ext4 or xfs or
>> btrfs; see what the resulting file layout looks like if your client does
>> not preallocate.  Now use a client that preallocates the space and try
>> again.  Calling fallocate() first for the full file size will help on
>> all these filesystems (well, TBH, I have not tested it on btrfs).
>>
>> If there are well-defined interfaces to give hints to the filesystem
>> about the ultimate state of a file, it's a nice feature, not a bug.
>>
>> Sure, filesystems should do the best they can in the absence of hints,
>> but performing well (or better) _with_ a hint is not indicative of a bug.
>>
>
> I can truely only speak for XFS, but btrfs might be similar:
>

Ha. Ha. Ha.

No. Sandeen can speak for XFS.

kthnx.


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