CPU runs to 100%

Hello,

when I run my programm, my CPU ist 100% charged to capacity. What can I do? Is this normal??

J.P.D

what is your program doing to consume so much processor time?

Wow
Skully

Same problem here. I've made a simple pong game and my cpu takes the full 100%.

Are those if...endif or while...wend loops so cpu-intensive?

It's a known issue .., view an image with acdsee while a B+ app is running? Have fun .. you need to alt-tab back to your app again to help acdsee viewing that image :P

It's said however that putting:

DELAY 2

into your mainloop solves a bit..

Are you using WaitEvent(0) or WaitEvent() in your main loop? (WaitEvent(0) takes much more CPU time)

Indeed, it consumes about 20% less. With delay set to 4 it saves about 25%. And a delay set to 10 consumes less than half (on my computer)

@fabian: I do not use waitevent in my pong-program

Try doing delay(#ofmillisecs).

Alternatively if you want your app to always run at 30 frames per second, so it is the same speed on every computer, you can do:

timer=createtimer(30)

and then use

waittimer(timer)

to wait for 1/30th of a second to go by before you draw the next frame. This should keep your CPU usage down to normal levels.

That's silly. The WaitEvent command is not listed in the command reference list in B+.

ofcourse it is..

>GUI Category
>> Events
>>> WaitEvent

Using events rather than polling is a better way to go anyway..

I thought in the category 2d a-z I could find it. There's a lot to learn I see.

In B+ events/gadgets are related to 'GUI'
Polling and drawing/sound/files etc. are related to '2d'