Uses 100% of core if icon is selected on desktop when using Adapta UI theme

Submitted by bbarbulovski@gmail.com

Assigned to Xfce Bug Triage

Link to original bug (#15793)

Description

If I select icon(or more) on desktop xfdesktop will use 100% of a core(~36% total on i3-3220).

Version: 4.13.6

bbarbulovski@gmail.com uploaded an attachment:

Attachment 8852, "strace of xfdesktop while consuming 100% of cpu core(icon is selected)":
xfdesktop-strace.txt.tar.gz

bbarbulovski@gmail.com uploaded an attachment:

Attachment 8853, "strace with stacktrace of xfdesktop while consuming 100% of cpu core(icon is selected)":
xfdesktop-strace-with-stacktrace.txt.tar.gz

Andre Miranda @andreldm said:

Did you notice this issue with previous releases? If not, are you able to bisect? A random guess: can please you also try another theme?

bbarbulovski@gmail.com said:

Do not noticed on older version, but the issue appears to be theme related.

If I go to Settings Manager -> Appearance -> Style, issue is only shown on Adapta-Eta-Maia, Adapta-Maia, Adapta-Nokto-Eta-Maia, Adapta-Nokto-Maia.

Other styles are not affected, thus ok.

Andre Miranda @andreldm said:

I tried that theme (3.95.0.11 from Arch Linux repository), it not as ugly as reported, my CPU goes up to 7% when icons are selected. From the stacktrace, I saw many occurrences of xfce_desktop_get_cycle_backdrop, I thought that the Next Background option introduced in 4.13.5 could be the culprit, but with 4.13.4 I get the same increased CPU usage.

Well, I will let this bug open, but I don't think this is an xfdesktop bug, instead it's a theme bug. Even the panel looks weird here with Adapta, it's like there is an 1px transparent border.

bbarbulovski@gmail.com said:

Andre, what CPU you have? If 8 core/16 thread one, than can be down to 7% of total CPU usage.

As far as saw(on my desktop), xfdesktop process consumes whole cpu thread.

I will try to contact some Adapta theme dev to see if we can fix this issue.

Andre Miranda @andreldm said:

(In reply to bbarbulovski@gmail.com from comment 6)

Andre, what CPU you have? If 8 core/16 thread one, than can be down to 7% of total CPU usage.

i5-4210U, 2 cores / 4 threads.

Theo Linkspfeifer said:

Were you able to contact the Adapta theme dev(s)?

bbarbulovski@gmail.com said:

no, but in process of getting to contact one(Tista - https://github.com/tista500)

Theo Linkspfeifer closed a related bug:

*** Bug 16258 has been marked as a duplicate of this bug. ***

Tony Paulic @ToZ said:

Some more information, including a workaround, at this forum thread: https://forum.xfce.org/viewtopic.php?pid=55613.

Not sure what the cause is, but setting the active icon background to transparent seems to bypass the issue.

added 1. Performance label

added Backtrace / Log label

changed title from xfdesktop using 100% of core if icon is selected on desktop to Uses 100% of core if icon is selected on desktop when using Adapta UI theme

mentioned in issue #200 (closed)

added 3. Not Xfce label

closed

added 5. Icons label

removed 5. Icons label