Bug 29696

Summary:	KDE moving files to trash is extremely slow
Product:	Mageia	Reporter:	Morgan Leijström <fri>
Component:	RPM Packages	Assignee:	KDE maintainers <kde>
Status:	NEW ---	QA Contact:
Severity:	normal
Priority:	Normal	CC:	davidwhodgins
Version:	8
Target Milestone:	---
Hardware:	All
OS:	Linux
Whiteboard:
Source RPM:		CVE:
Status comment:

Description Morgan Leijström 2021-11-25 01:56:27 CET

I have noticed recently (month?) that moving files to trash using Plasma programs is extremely slow - about a second per file, regardless of size.

Using Dolphin or Gwenview.  

Almost no disk access, as expected (it just change pointers not move data)

But still using one CPU core 100%.  In Plasma, using system monitor, I see it is the process trash.so, started by kdeinit.


Also when using Gwenview when logged into Xfce, and I see it is the same process.

Logged into Xfce, using its file manager moving files to trash is swift.

Comment 1 Morgan Leijström 2021-11-25 14:35:37 CET

Also tried Thunar file manager when logged into Plasma: no problem.

Tried uninstalling nextcloud-client packages, including Dolphin integration, no change.  (I was thinking maybe some signalling interfered, and it also syncs with a painful fraction of second delays between files)

Seen in journal when deleting a small file using Dolphin:

nov 25 12:04:09 svarten.tribun plasmashell[3541803]: org.kde.plasma.notifications: Failed to generate job text for job with following properties:
nov 25 12:04:09 svarten.tribun plasmashell[3541803]: org.kde.plasma.notifications:   processedFiles = 0 , totalFiles = 1 , current file name = "" , destination url string = "Papperskorg"
nov 25 12:04:09 svarten.tribun plasmashell[3541803]: org.kde.plasma.notifications: label1 = "" , value1 = "" , label2 = "" , value2 = ""
nov 25 12:04:13 svarten.tribun plasmashell[3541803]: file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/NotificationPopup.qml:116:15: QML QQuickItem: Binding loop detected for property "height"
nov 25 12:04:13 svarten.tribun plasmashell[3541803]: file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/NotificationPopup.qml:116:15: QML QQuickItem: Binding loop detected for property "height"

- but the popup about moving to trash is popping up, and getting updated by number of files moved.

Comment 2 Dave Hodgins 2021-11-25 19:15:04 CET

I wonder if this could be due to akonadi. I disable it on my day to day use
install and don't use any applications that require it such as kmail.

To disable it, edit ~/.config/akonadi/akonadiserverrc and change it to have
StartServer=false

CC: (none) => davidwhodgins

Comment 3 Morgan Leijström 2021-11-26 09:57:07 CET

Thank you for the idea, but sorry, no.

1. Verified akonadi processes was present
2. Edited akonadiserverrc
3. Logged out and in 
4. Verified no akonadi* process running
5. Deleted files - same behaviour.