[vdr] making VDR ext4-ready

Udo Richter udo_richter at gmx.de
Sun Jun 7 15:10:12 CEST 2009


On 07.06.2009 01:58, Marcel Witte wrote:
> So ext4 seems to be perfect for a video-partition, but to make it more
> perfect, it would be nice if VDR could use the fallocate()-systemcall as
> mentioned in the article. This would prevent fragmentation in the file system.

Sounds like a good plan, but unfortunately fallocate requires you to 
know in advance how big a file will be. This is not true for VDR 
recordings. And if you fallocate with too small or too big sizes, you'll 
end up with fragmentation or smaller chunks of unused space again. (All 
in all, this is probably only important for concurrent recordings anyway.)


Cheers,

Udo



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