[mythtv-users] 100% CPU usage in Watch Recordings

[Michael T. Dean]

On 10/21/2009 12:25 AM, David Asher wrote:
> On Oct 21, 2009, at 12:11 AM, Michael T. Dean wrote:
>> On 10/20/2009 11:04 PM, David Asher wrote:
>>> Is anyone else seeing this?  When I'm in Watch Recordings or Watch 
>>> Videos screen my CPU usage (via top) is 100%.
>>>
>>> This is a Zotac single core ION using Graphite on trunk r22497 
>>> (JYA's trunk repo).  I've tried both 185.36 drivers and 190.40 
>>> drivers (again from JYA's repo) with the same results.  It does NOT 
>>> happen with the Mythbuntu-wide theme.
>>>
>>> When I'm at the upper level menu items CPU usage is around 15%, but 
>>> as soon as I enter Watch Recordings or Watch Videos, the CPU usage 
>>> goes to 100% and stays there.  Not surprisingly movement is sluggish 
>>> while in these screens.  Note that this is AFTER all 
>>> previews/fanart/etc has been masked and cached locally -- its even 
>>> worse while they are brought over.
>>>
>>> I attached gdb to the process and the threads all look roughly the 
>>> same between the 15% and 100% usage except for Thread 1, which 
>>> appears to always be drawing something (see backtrace below).
>>>
>>> Any ideas?  Is this expected?
>> Yes, this is the expected behavior.  Some themes require more 
>> resources than others.  If your system isn't powerful enough to keep 
>> up with the theme you've chosen, you should choose a different theme 
>> that uses fewer resources.
> It is expected that while sitting doing nothing in Watch Recordings to 
> utilize 100% CPU ?
>
> The only thing going on is the alphapulse of the "All Programs" button...

Yes*.

*Dependent on CPU.

Mike