Steffen Barszus kirjoitti: > Kartsa schrieb: > >> Stefan Huelswitt kirjoitti: >> >>> On 01 Feb 2007 Reinhard Nissl <rnissl@xxxxxx> wrote: >>> >>> >>> >>>> Heikki Manninen wrote: >>>> >>>> >>>>>> I've noticed that earlier when I was using PIII 550 MHz and vdr >>>>>> 1.3.22 (or something about) I made a test by recording nine >>>>>> channels simultaneously and watching a recording at the same >>>>>> time. I remember there seemed to be no trouble doing it. Now when >>>>>> I have vdr 1.4.4 after fourth recording starts vdr becomes >>>>>> sluggish and there starts to come errors on log: >>>>>> dvb-ttpci: warning: timeout waiting in LoadBitmap >>>>>> when pushing menu button. And ofcourse no menu appears or menu >>>>>> appears only partly. >>>>>> >>>>> >>>>> Exactly the same thing here and with the latest and the second latest >>>>> firmware. My FF 2.1 TT card starts to die after third simultaneous >>>>> recording. But then again, I think that budget cards are much >>>>> better in >>>>> this area. >>>>> >>>> >>>> Most likely, it's me who has to be blamed. Around 1.3.27, >>>> cVideoRepacker >>>> was introduced which has an impact on CPU load. This could be a reason >>>> why the menu is slow when running several recordings at the same time. >>>> >>> >>> >>> I don't think that the problem is related to anything on VDR >>> side. >>> >>> AFAIK the bandwidth from ARM to PCI bus is very limited on >>> full-featured cards. With 3 recordings being transfered to VDR >>> there is simply not enough bandwidth left for the OSD transfers. >>> Hence the LoadBitmap timeout. >>> >>> I experience the problem since VDR introduced concurrent >>> recordings and I cannot believe that there is any VDR / firmware >>> combination which doesn't show this behaviour as it's IMO a >>> hardware limitation. >>> >>> Budget cards doesn't have this limitation, they can transfer the >>> full transponder without problems. >>> >> >> I know the performance was better when I was using vdr-1.3.22. I know >> I had 9 recordings going on and still I was able to watch a previous >> recording and I was using a slower cpu and a ff card. Ofcourse my >> recent test does prove your point, hence the question "what is the >> best combination of hw and sw?". >> > Guess the best would be if you could/would be able to limit the > possible number of recordings on a single card (or one would be able > to set a limit for FF Cards or a fixed limit would be set in VDR at > compile time) Then you could have a combination of FF and budget cards > like most here have most likely. I too have one FF and one budget card and I occasionally do stumble in a situation when there is three or more recordings. And I am pretty sure they are not all from the same mux thus they are from two dvb cards. And btw I actually need to record from two muxes only and wrom fta channels only. And this is the reason why I have vdr with two cards in the first place. But as it is there is a problem and as I said it does not seem to exist in an environment with something else giving the video out than FF card. Therefore the question still remains. \\Kartsa
