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<tt>Well, I upgraded my svn 6836 revision to svn HEAD (7004 as of this
afternoon), and lo-and-behold! The CPU is actually LESS for 720p
(45-50% vs ~65%) and 1080i (75% vs 85%) than I was getting with
0.18.1! Yay!<br>
<br>
So, I think the problem was one of two things: 1) the database upgrade
done from 0.18.1 to 6995 left some cruft around, or 2) when I built
6995, I told it to optimize for my CPU, perhaps that caused a
performance degradation.<br>
<br>
I'll probably rebuild optimized for i686 again and see if it slows down.<br>
<br>
David.<br>
</tt><br>
David Asher wrote:
<blockquote
cite="mid~B42f6c5200000.42f764fa0000.0001.mml.1607233068@caviumnetworks.com"
type="cite">
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
<tt>I ended up backing up to 6836 to try the Cuy patches for ATSC
scanning. To be safe I started with a new mysql database.<br>
<br>
I'm now getting the CPU load I expect. I'll move forward to the latest
again soon to see if it was the database causing my performance
problems.<br>
<br>
I haven't seen the recording problems you mentioned, but I've only got
1 pcHDTV HD-3000.<br>
<br>
David.<br>
</tt><br>
Blair Preston wrote:
<blockquote cite="mid20050807.QNI.76034600@www.collabras.com"
type="cite">
<pre wrap="">I just get a little audio stuttering on my 3.2 prescott, but skipping forward
and back seems to fix it. Latest alsa-1.0.9b stuff. Seems like some kinda
buffer issue but I haven't found a way to fix it yet.
The only other wierdness I see is when both pcHDTV HD-3000's are recording at
the same time and I'm watching something, after about 20 minutes of recording,
my CPU pegs at 80% or so, even when I shutdown viewing, it won't clear. Th
cx88atsc driver reports a buffer overflow at the same time the CPU pegging
starts. This doesn't happen if I'm watching through a remote frontend, only
if I'm watching on the master doing the recording.
Donavan Stanley (<a class="moz-txt-link-abbreviated"
href="mailto:geckofiend@gmail.com">geckofiend@gmail.com</a>) wrote:
</pre>
<blockquote type="cite">
<pre wrap="">On 8/7/05, David Asher <a
class="moz-txt-link-rfc2396E"
href="mailto:david.asher@caviumnetworks.com"><david.asher@caviumnetworks.com></a> wrote:
</pre>
<blockquote type="cite">
<pre wrap="">I just switched over from 0.18.1 atrpms mythtv to building from the
latest svn (changeset 6995, I was hoping to play with the new internal
dvd player).
Mythfrontend now pegs my CPU when playing 720p recordings and I get
frame drops on 1080i recordings.
I've got a 3Ghz Prescott, and under 0.18.1 720p was ~65% CPU, 1080i ~90%
CPU -- no frame drops.
Is anyone else seeing this? I haven't changed anything else X
configuration-wise.
</pre>
</blockquote>
<pre wrap="">I'm using latest SVN with a 2.5ghz Celeron outputing to a 720p display
and have no issues with HD content playback.
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