[mythtv-users] Performance issues with new hardware.

Jon jon at sd-6.org
Sat Mar 17 04:26:33 UTC 2007

David Murphy wrote:
> Jon wrote:
>   However now no matter what I do cpu
>> usage is peaked.  Can anyone shed some light?
> Are you using the Nvidia binary driver?  If so, are you using
> Option "UseEvents" "True"  in the Device section of your xorg.conf?
> Should look something like this:
> Section "Device"
>          Identifier  "Videocard0"
>          Driver      "nvidia"
>          VendorName  "Videocard vendor"
>          BoardName   "nVidia Corporation C51 PCI Express Bridge"
>          Option "UseEvents" "True"
> EndSection

I've not used that option.  I will give it a try later and see what
happens.  I am booting of a live usb root, so literally nothing has
changed except the motherboard.  I wouldn't think the video card would
be the issue unless there are performance issues with pci-e.  I thought
it might be the sound card.  The new board has HDA audio which isn't
well supported by linux yet.  I put in a different sound card but it
didn't make any difference.
> This option dropped cpu use substantially but I'm still running out of 
> cycles playing HD mpeg-2 content w/ my Sempron 3400 running on an Asus 
> M2NPV-VM.  I find this odd as I can play back the 1920x1080 HD version 
> of Elephant's Dream encoded w/ Xvid at 10Mbps w/ no problems.  Initially 
> I assumed that should be much more demanding than 1080i Mpeg-2 but that 
> is not what I'm seeing here.  I have similar problems using an Athlon X2 
> 3600 so I think there must be another issue in the mix here...drivers or 
> something.
> In any case I'd be interested to know your results if you have not yet 
> enabled the UseEvents option.
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