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Curtis Stanford wrote:<br>
<blockquote type="cite"
cite="mid200311241615.01740.curtis@stanfordcomputing.com">
<pre wrap="">On November 24, 2003 03:58 pm, Tako Schotanus wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Ken Bass wrote:
</pre>
<blockquote type="cite">
<pre wrap="">On Mon, 24 Nov 2003, Tako Schotanus wrote:
</pre>
<blockquote type="cite">
<pre wrap="">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
</pre>
</blockquote>
<pre wrap="">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.
</pre>
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<pre wrap="">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
</pre>
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<pre wrap=""><!---->
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
</pre>
</blockquote>
No, it's one machine:<br>
<br>
Nehemiah 10000<br>
RH 9, Stock kernel 2.4.20-8<br>
ivtv of 1 hour ago (but was of 31/10 when the alpha branch was again
made part of the main branch, not tested playing recordings yet, but
live tv still shows prebuffer messages)<br>
PVR-250, firmware 17_21226<br>
VIA CLE266 driver version 37 (CLEXF40037)<br>
mythtv CVS of November 16th<br>
<br>
-Tako<br>
<br>
PS: There is a difference in the pauses between live tv and playing
recordings: live stutters on average every 30 seconds (3 stutters in a
row normally, most of the time within one second) which playing a
recording won't stutter at all in the beginning but when it starts it
will stutter every second.<br>
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