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Ultimaker / Cura

3D printer / slicing GUI built on top of the Uranium framework
GNU Lesser General Public License v3.0
6.17k stars 2.07k forks source link

[3.6.0] High CPU usage on idle #5192

Closed crazzzik closed 3 years ago

crazzzik commented 5 years ago

Application Version [3.6.0]

Platform Windows 10

Printer Prusa i3 over Octopi

Steps to Reproduce -Start application -Add model -Send Print -Wait until print finished -Observer CPU usage

Actual Results Cura uses between between 14% and 40% CPU doing nothing on Prepare, Monitor or even background.

Expected results Expected to go to idle CPU consumption (0-2%)

Additional Information

image

Logs: https://we.tl/t-lHoqYvrKEh

smartavionics commented 5 years ago

There was a recent issue where the engine would sit using 100% CPU after cura started. Once the first slice had been done, the CPU usage dropped to 0 (in the engine). Maybe it is that you are seeing. Currently, on a Linux cura, the idle CPU usage is low unless I waggle the mouse around over the cura window when it uses more.

nallath commented 3 years ago

This issue has been fixed in the meantime.

Venryx commented 3 years ago

In Cura 4.9.0, I'm still noticing a 5-6% continuous CPU usage, even when Cura has no models loaded, and is defocused + minimized.

Not as bad as 30%, but a 5% continuous load when it should be ~0% is still worth resolving imo. (and my processor is the Ryzen 1700X [8-core, 16-thread] -- so it's actually using half the power of an entire core during times that it should be doing nothing)