On Tue, 1 Oct 2019 15:42:21 +0200 leoutat...@gmx.fr said:

> Hi
> I find out why idle Enlightenment, without any launched application,
> eats 4 to 7 % or more cpu: clock setting with seconds.
> If i disable clock seconds settings or clock module, cpu stays about 0 %
> Conditions:
> Arch/Aur system
> last Enlightenment + Efl git master (1.23.99) and previous versions
> Xorg session
> Htop in other user tty
> This issue doesn't appear in Wayland session
> 
> Interesting: it seems Enlightenment X session eats more cpu than Wayland
> session

yup. the clock flipping seconds consumes cpu. it's defined by theme. it
actually flickers/animated the numbers not just ticks them over with a single
draw. you can modify the theme to change this or disable seconds. it's not
free. it'll consume about that in wayland too... the difference is when you
switch tty enlightenment STOPS RENDERING. it goes idle as it knows you switched
vt. e itself has to handle the vt switch. in x it has no idea you switched vt.
x doesn't tell e anything and it doesn't know, so it keeps going. ssh in and
run htop and measure there and you'll see it's the same  just the vt switch is
the difference.

-- 
------------- Codito, ergo sum - "I code, therefore I am" --------------
Carsten Haitzler - ras...@rasterman.com



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