[PATCH] UnbufferedFile improvements v2

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Philippe Gramoull? wrote:
> Oliver Endriss <o.endriss@xxxxxx> wrote:
> 
>   | Selecting the CFQ I/O scheduler in the kernel solved all problems
>   | for me. Did you try that?
> 
> Since my VDR is in the living room, i recently switched to a 100% diskless solution
> and until now i was having regular freezes when recording a channel and playing back
> a divx at the same time.
> (system is linux 2.6.13.2/Diskless based Debian Sid/PIII 1Ghz/VDR 1.3.36)
> 
> I, indeed, forgot to add "elevator=cfq" in the boot parameters (which i use on about all my
> other workstations/server :), and up to now, it definitely improved things: No more
> regular freezes (about every 10/12 sec), at last with the few channels/divx combinations
> i know there used to be problems with.

if your VDR really is 100% diskless how can the IO scheduler (which controls 
access to block devices) make any difference?

artur


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