[vdr] My solution to " VDR frozen every 2 seconds"

["Maxime GUILBOT" <maxime.guilbot@online.fr>]

Maxime GUILBOT

Hi everybody,
I had a problem, DVD playing was not smooth, the picture was forzen every x
seconds, and it made the dvd unusable.
But, after tuning many parameters (hdparm, /proc/ide/hdc/settings,...) I
found my solution,
I put file_readahead to 0 and breada_readahead to 0 and dvd playing is
perfect, no image frozen, fast dvd menu on my pentium 133mhz, I only have
30% of the cpu used with ac3 over dvb-s 2.1.
I someone have the same problem, he could try it :
echo file_readahead:0 > /proc/ide/hdc/settings
echo breada_readahead:0 > /proc/ide/hdc/settings
echo dsc_overlap:1 > /proc/ide/hdc/settings

I still have some kernel : buffer empty messages but without any
consequences on dvd playback.
Thank you Andreas for your great work, now I can play again my dvds.
Don't ask me why it works with these parameters, if someone can explain it
to me...
Maxime.