<html><body><div>On 13 Mar, 2012,at 07:54 AM, Simon Hobson <linux@thehobsons.co.uk> wrote:<br><br><div><blockquote type="cite"><div class="msg-quote"><div class="_stretch">Joe Nyland wrote:<br> <br> >>On the contrary. It means you are using one full core of that <br> >>2.4GHz Core 2 Duo, and hitting a wall because something is single <br> >>threaded.<br> >><br> ><br> >Well, I say 50% - what the activity monitor of Mac OS shows is that <br> >both cores are running at around 50%.<br> <br> Can be much the same thing. The (single thread) task may well get <br> switched between cores, so while it's limited to 100% of one core, it <br> isn't the same core all the time and once averaged a bit (for display <br> purposes) it appears as 50% each on two cores.<br> If you run "top", what process/program is using the CPU ? That might <br> help someone with deep knowledge of the code to coment.<br> <br> <br> >>>RAM usage hovers around 2GB mark on my primary frontend.<br> >>><br> >><br> >>Well that simply doesn't sound right. Even at 1080p and an artwork <br> >>intensive theme, you shouldn't be hitting half that. Are you <br> >>reading the resource usage, or the virtual memory allocation?<br> >><br> ><br> >I've checked my RAM figures and again to get it right:<br> ><br> >RAM usage for MythFrontend on my iMac is 205Mb.<br> >RAM usage for MythFrontend on my Mac mini is around 240Mb.<br> ><br> ><br> >Please disregard my 2GB RAM figure from before.<br> <br> It's easy to get that wrong. Like most modern OSs, Linux will use any <br> spare RAM for disk cache - so once you do a bit of I/O then you are <br> almost guaranteed to see all RAM "in use". If you cat /proc/meminfo <br> it gives a breakdown of what's been used for what.<br> <br> -- <br> Simon Hobson<br> <br> Visit <a href="http://www.magpiesnestpublishing.co.uk/" data-mce-href="http://www.magpiesnestpublishing.co.uk/">http://www.magpiesnestpublishing.co.uk/</a> for books by acclaimed<br> author Gladys Hobson. Novels - poetry - short stories - ideal as<br> Christmas stocking fillers. Some available as e-books.<br> _______________________________________________<br> mythtv-users mailing list<br> <a href="mailto:mythtv-users@mythtv.org" data-mce-href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br> <a href="http://www.mythtv.org/mailman/listinfo/mythtv-users" data-mce-href="http://www.mythtv.org/mailman/listinfo/mythtv-users">http://www.mythtv.org/mailman/listinfo/mythtv-users</a></div></div></blockquote><span> </span><br><br>Thank you for your email Simon.<br><br>I'll try and post that info you have highlighted to the list when I get home tonight.<br><br>Anyone get any thoughts on why I would be seeing such behaviour with only 1920x1080 on my iMac too? - Again, other (higher and lower) resolutions are ok on my iMac.<br><br>Thanks,<br><br>Joe<br></div></div></body></html>