[mythtv-users] Mythfrontend idle cpu consumption help
Michael T. Dean
mtdean at thirdcontact.com
Mon Nov 16 04:51:26 UTC 2009
On 11/15/2009 06:46 PM, Mark Garland wrote:
> This thread is a little confusing as there seems to be two or more off-topic
> conversations going on at once so I'm not quite sure what's relevant. I'm
> pretty sure fiddling with deinterlacers wont help this issue, but I'll
> certainly try setting timezones if people think this is related and tell me
> how.
>
Setting time zone will /not/ have any effect at all--other than possibly
preventing you from starting parts of Myth. The fact that the time zone
check was being done /just before/ the UI event thread starting tying up
the CPU is unrelated to the issue. Someone in the thread just saw time
zone before a bunch of checks reading the clock (in the Qt event thread)
and thought it might be related. It's not.
Again, I /seriously/ believe that if there's an issue, it's in Qt (and I
saw no obvious errors in the code that was being executed) or the
underlying libc.
I would be /very/ interested to know if anyone using a non-Debian-based
system (i.e. someone other than Debian and Ubuntu users) is seeing the
issue. Debian just swapped out libc's, and I'm pretty sure that
current/new Ubuntu is using eglibc (the different libc).
> I've also had to disable Desktop effects in KDE to get the frontend
> rendering nicely without tearing. Just a thought now, I wonder if disabling
> compositing would help in some way? I'm out of my depth here.
That's possible. (That disabling compositing might have an effect--not
that you're out of your depth. :)
Mike
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