[mythtv-users] Recordings stay in database and on disk for some time after delete?

[Tom Dexter]

On Thu, Feb 25, 2010 at 12:37 PM, Greg Oliver <oliver.greg at gmail.com> wrote:
> On Thu, Feb 25, 2010 at 11:33 AM, John Drescher <drescherjm at gmail.com> wrote:
>> I have not used ext3 for my recordings for at least 4 years so I have
>> not had to use the slow deletes option. Since sometime in 2008 I had
>> begun moving my recordings from xfs to ext4 and now the datastorage
>> that I use daily is all ext4. I do not have any problems with ext4 and
>> it does not need the slow delete option.
>
> Hmmm, does that mean on a low power machine, turning off slow deletes
> on a disk with ext4 does not send the disk IO bound?  I have not dared
> try it, but it would be nice!

I was thinking the same thing, but here's something that I'm a little
concerned with:

I was just reading the Gentoo wiki about converting ext3 to ext4 where
the suggest unmounting the filesystem and doing:

tune2fs -O extents,uninit_bg,dir_index /dev/device
...and...
fsck -pf /dev/device
...to make sure everything's ok.  However, they also mention this:
"Note: Using this method, new files will be created using the
"extents" method, but old files will not be automatically converted"

If I understand correctly, the exents feature is what makes deletes
fast, so that tells me that deleting my older recordings would still
be a problem.

I've yet to read anything about actually converting existing files to extents.

Anyone know more about any of that?

Tom