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Dynamic example - 100% CPU core load [message #48670]

Tue, 15 August 2017 17:31

coolman
Messages: 114
Registered: April 2006
Location: Czech Republic

Experienced Member

Hi,

I have a question regarding the dynamic example in the ScatterCtrl_Demo. After a while the CPU load of one core is at 100%. Do you know the reason for that?

Thanks, Radek

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Re: Dynamic example - 100% CPU core load [message #48676 is a reply to message #48670]

Mon, 21 August 2017 11:24

koldo
Messages: 3356
Registered: August 2008

Senior Veteran

Dear Radek

ScatterCtrl_Demo/Dynamic tries to update the plot every 5 ms.
Depending on the computer, compiler options (debug - release) and painting mode (Painter - Draw), the update is done faster or slower, and CPU load varies.

If you change line

SetTimeCallback(-5, THISBACK(Animate));

changing -5 (5 ms update) with 500 (500 ms update), probably your CPU load will be about 0%.

Best regards
Iñaki

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Re: Dynamic example - 100% CPU core load [message #48721 is a reply to message #48676]

Mon, 28 August 2017 17:56

coolman
Messages: 114
Registered: April 2006
Location: Czech Republic

Experienced Member

Hi Koldo,

Thank you for the explanation. The CPU load is much lower with release build. And it's good to know how to modify CPU load.

BR,Radek

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