[mythtv-users] small mythtv freezes ?

[Curtis Stanford]

On November 24, 2003 03:58 pm, Tako Schotanus wrote:
> Ken Bass wrote:
> >On Mon, 24 Nov 2003, Tako Schotanus wrote:
> >>No, it has nothing to do with one or two stutters after a channel
> >>change, that's normal. This is about continuous stuttering that occurs
> >>every second or so and is very slight but enough to be annoying. The
> >>console is filled with messages about prebuffering pauses.
> >>
> >>For me this only happens after a certain time, never in the beginning of
> >>a recording.
> >>
> >>CPU usage is low enough (mostly around 30%) so that should not have
> >>anything to do with it.
> >>
> >>-Tako
> >
> >What is your hard disk performance like? I think you can figure that out
> >by running hdparm; such as:
> >
> >"hdparm -t /dev/sda"
> >
> >and you will get:
> >
> >/dev/sda:
> > Timing buffered disk reads:  64 MB in  2.45 seconds = 26.12 MB/sec
> >
> >My guess is that if your CPU util is low, your hardisk might be the
> >bottleneck. What is that number and if it is low it could be due to DMA
> >not enabled on your harddisk or poor hard disk performance.
>
> No, that's not it either (20MB/s). That would also mean that everybody
> having this problem would have slow CPU or slow HDs which just isn't the
> case. I've had other mythtv/ivtv/via-drv combinations work more or less
> perfectly, it's just the current combination that isn't working for me.
>
> Just to make it clear: I'm not complaining, just stating that the
> current combi isn't working for me, but I'm patient and will just wait
> until everything works ok again and maybe even help where possible.
>
> -Tako

Tako, I'm having the same problem. Are you using a separate backend machine or 
just one front/back machine? My backend is separate so I'm suspecting 
networking problems as well.

Curtis