[Xastir] Raspberry PI B, Rasbian Jessie, and Xastir = 100% cpu

[Ken Koster]

On Sunday, April 17, 2016 8:27:36 PM PDT davidf4 wrote:
> Well..I've given up on having Xastir running on my poor little PI B...even
> with the very latest CVS patches it goes into 100% CPU use trying to display
> just Western Wa...in fact, the preliminary patch from Ken worked better
> than the latest one...

David,
Does it use 100% even if only a few stations are displayed?   There are a few 
more calculations being done with the font changes but it should depend on the 
number of actual items being displayed.

There was one other change that comes to mind that may increase the load, but 
Curt submitted it some time before my changes.  That was a change to refresh 
the screen more often.   We didn't notice any increase in load but then again 
it wasn't being tested on a PiB either.  I don't have a PiB to test with 
anymore or I'd give it a try and the Pi2 is so much better it wouldn't tell us 
much.

If you like I can send you a file without the refresh changes to try.  I'm 
more suspicious of that change than the font ones, simply due to the fact the 
font stuff should be dependent on number of text objects displayed,  but the 
refresh change involves the whole screen.
 
> I'm guessing that the latest updates to the Borg that is SystemD and some of
> the font patches along with Xastir just isn't a good mix..
> 
> So I'm resurrecting an old Dell 7000 (Pent I, 366 Mhz with just over 300 G
> RAM) using Gentoo so I can avoid SystemD...that should give me an always-on
> system that doesn't generate too much heat for a home Xastir display..
> 
> Dave
> KD7MYC
> 
> 
> 
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-- 
Ken - N7IPB
Email: n7ipb at wetnet.net
JID: n7ipb at jabber.wetnet.net
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"I have now exceeded my BFS (Budget For Stupid) for the month" - Me to  WE7U
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