[vdr] Re: Observations on vdr 1.1.15

[Dennis Noordsij <dennis.noordsij@wiral.com>]

On Tuesday 05 November 2002 12:03, Richard Scobie wrote:
> I have just installed vdr 1.1.15 and DVB 20021101 on a P1-233 which has
> been running 1.0.4 without trouble. DMA on the disk works fine.

I've just been through that. I have 2 cards, and with the old drivers and VDR 
1.0.4 I can record with one and play back with the other just fine. But it 
can not record 2 cards at the same time (without any timeshifting of course).

> When I start recording, the viewed picture and recording (on subsequent
> replay) suffer very bad breakup, with CPU usage at 100% a significant
> amount of time.
>
> If, while still recording I switch to another channel on the same
> frequency, everything settles down, with the viewed picture perfect and
> CPU usage drops to about the same level (about 25-30%) as when recording
> on 1.0.4 (although the recording is still corrupted). Switching back to
> the channel being recorded and things fall apart again.
>
> Are there any tests I can do to help, bearing in mind I have limited
> programming/debugging skills?

It appears my P1-133 is simply not fast enough, the most I can do with it is 
record one card and play back on the other, which is not enough really.. (I 
mean, that's not why I got 2 cards :-)

I don't know about 233 MHz, which is a lot faster (relatively :) but I have 
seen vdr-1.1.1x jump to 40-50% CPU usage on a 750MHz Duron at times. Most of 
that is spent in the driver.

Dennis


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