Re: A simple GtkSpinner is very costly in CPU cycles

[Kian Karas <kian karas dev gmail com>]

Hi Lucky

I don't understand what it is you suggest. Could you elaborate?

Regards

On Tue, Mar 20, 2018 at 3:35 PM, Lucky B.C <lblackc13 gmail com> wrote:

> Hi,
> I am not sure about playing animation of the spinner to cause the high
> cost. But you can try to have a callback from the g_timeout_add function
> for starting (gtk_spinner_start) and stopping (gtk_spinner_stop) the
> animation.
>
> On Tue, Mar 20, 2018, 21:07 Kian Karas <kian karas dev gmail com> wrote:
>
> > Hi smart people
> >
> > I just introduced animation, in the form of a GtkSpinner, to my
> > application
> > for the first time. When the spinner is animating, the application takes
> > up
> > 45 % of the CPU resources (the application is otherwise idle at 0-2,6 %).
> > The CPU is a single core ARM Cortex-A7 running at 528 MHz (maximum).
> >
> > This seems like a lot of MIPS for rotating an image of approximately 20x20
> > px.
> >
> > Could it be caused by a simple misconfiguration?
> >
> > Any suggestions on how I can reduce the load without disabling animation
> > completely?
> >
> > Is it possible to slow down the frame rate of animations some how?
> >
> > Thanks!
> > Kian
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