Kartsa wrote: > Kartsa kirjoitti: >> I have been running vdr now for a couple days with >> >> #define PLAYERBUFSIZE MEGABYTE(64) in dvbplayer.c >> >> and for now it seems like better as in no stuttering. But I am still >> testing it. >> > Okey, I've had this setting in action for a week or so now and it is > definitely better. There is still sometimes some stuttering but it is so > suttle that it is barely noticeable. With MEGABYTE(1) the video > occasionally stopped for a second and then stuttered for about 5 seconds > and then resumed normal operation (with lesser cpu it could be > stuttering to the end of the recording). As mentioned earlier in this thread, I had also sometimes noticed a similar effect "video halts for a few seconds, then resumes and stutters for a few seconds". After recommending it to you, I have also increased PLAYERBUFSIZE to 64MB and I have not noticed the problem ever since. So there is a high probability that increasing PLAYERBUFSIZE improves matters. Maybe it should not be fixed, though, since a machine with very little RAM may suffer from thrashing if the VDR footprint is increased that much. I wonder if it should be configurable or if there would be an automatic way of determining the "right" size (i.e. start with 1 MB, then double it on every stutter and remember the value in the setup.conf file). > Could the chosen file system be causing this? I use LVM creating one > partition on two disks and then I create one xfs on that partition. The > disks are sata as mentioned earlier. I do not think so. Maybe S.M.A.R.T., maybe hardware, but not the file system. I am using XFS on individual (mostly PATA) disks over NFS. Carsten.
