<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">one possible configuration setting that people with high CPU usage should try is the kernel config parameter HZ. By default I think it is set to 1000 in 2.6 kernels. I use a value of 250 and my CPU usage stays at 10% on my x2 3800 with SD content with XvMC and 9631 drivers, and 24 color depth. I don't have HD content to try it. But I won't expect it to be anywhere near 100%.<br><br>-devsk<br><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">----- Original Message ----<br>From: Greg Grotsky <spikeygg@gmail.com><br>To: Discussion about mythtv <mythtv-users@mythtv.org><br>Sent: Sunday, December 17, 2006 9:35:28 AM<br>Subject: Re: [mythtv-users] Prebuffering pause with HD - really... no
kidding...<br><br><div><span class="gmail_quote">On 12/17/06, <b class="gmail_sendername">john sturgeon</b> <<a rel="nofollow" target="_blank" href="mailto:john.sturgeon@gmail.com">john.sturgeon@gmail.com
</a>> wrote:</span>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">Thanks, I tried that, but it made no difference. The problem appears<br>to be the frontend. Xorg and mythfrontend are battling it out for
<br>CPU. When playing back HD content, they both always total 100%.<br>Seems odd.<br><br>Also, when using Xvmc mythfrontend comes in at 95% CPU, the<br>prebuffering stops, but that seems *awfully* high for an AMD 4200+.<br>
<br>--<br>John <><</blockquote>
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<div>John, those cpu usage numbers are not normal. What distro are you running? By the name of the myth module you are using it looks like fedora core, have you tried another? I'm running the AMD64 release of Debian. I'm not convinced that it's a distribution issue but there was another guy... Brad, who was running FC with a dual core 4400+ and seeing very high CPU usage as well. Are you running a custom kernel? What version is it?
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<div>Can anyone vouch for a working fedora core myth machine? One that doesn't suck up 100% of a dual core 4200+ or 4400+?</div>
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<div>Also, are you using agpgart? If possible, try running NvAGP. Check /proc/drivers/nvidia for any problems you might have with the driver while in X. Specifically `cat /proc/drivers/nvidia/agp/status` will give you the details.
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<div>Mine reports:</div>
<div>Status: Enabled</div>
<div>Driver: NVIDIA<br>AGP Rate: 8x</div>
<div>Fast Writes: Disabled</div>
<div>SBA: Enabled</div>
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<div>I'm running NVIDIA version 9629. I just noticed that there is a 9631. I'll have to try that soon they "improved some interaction with newer kernels".</div>
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<div>-Greg</div><br> </div>
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