[mythtv-users] remaining disk space / delete slowly

stinga stinga+mythtv at wolf-rock.com
Wed Jul 13 08:06:05 UTC 2016


On 13/07/16 02:37, James Linder wrote:
> Can someone who KNOWS offer some explanation, this sounds like gibberish
>
> A file is an inode plus house heeping to say where in the hierarchical tree (AKA the file system) it appears
> A file consists of
> 1 sector of pointers to data sectors
> 1 sector of pointers to a sector of pointers to data sectors
> 1 sector of pointers to a sector of pointers to a sector of pointers to data sectors
>
> during delete nothing happens to the sea of data sectors
> Where does this huge I/O come from
>
> If you choose (say) ext4 file system then file extents replace the traditional block mapping and journal overhead apply, and the devil in the detail (which may explain long delete times)

It is an ext3 thing. It was slow on large files due to the way the data 
is stored. Google will explain it for you.
If using ext3 then tick 'slow delete' otherwise leave it unticked.

Not sure what happens internally if you do a slow delete on a non-ext3 
mount, hopefully it is ignored.

-- 
'ooroo

Stinga...(:)-)
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