Bug 419018

Summary:	dolphin lags when there is a lot of mounted directory
Product:	[Applications] dolphin	Reporter:	Eric BURGHARD <eburghar>
Component:	general	Assignee:	Dolphin Bug Assignee <dolphin-bugs-null>
Status:	REPORTED ---
Severity:	normal	CC:	a.samirh78, artem, eburghar, kfm-devel, mirek.kopec
Priority:	NOR
Version First Reported In:	20.04.0
Target Milestone:	---
Platform:	Manjaro
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Eric BURGHARD 2020-03-19 13:40:45 UTC

SUMMARY
When using self-hosted kubernetes, dolphin becomes extremely slow. I think this is due to the number of overlay mounts created by kubernetes from /var/lib/containers/storage/overlay/ which dolphin probably try to motorize.

STEPS TO REPRODUCE
1. start kubernetes
2. open dolphin

OBSERVED RESULT
If you try to enter a path in the location bar and are not quick enough to validate with enter, the location path is resetted to initial value.

Sometimes dolphin freeze a few seconds.

EXPECTED RESULT
Same behavior than without a running kubernetes

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.18.3
(available in About System)
KDE Plasma Version: 5.18.3
KDE Frameworks Version: 5.67.0
Qt Version: 5.14.1

ADDITIONAL INFORMATION

Comment 1 Eric BURGHARD 2020-05-07 10:55:39 UTC

The bug is definitively due to the high number of mounts done by kubernetes for pods (I have 127 mounts on a local lab on my laptop).

The mounts appears in the devices section on dolphin sidebar. Hiding the devices has no effect.

Beside being unusable (lots of lags, freezes) there is also memory leak. Memory consumption of dolphin continually raise every seconds even without making any interaction with dolphin. It ends up by eating all available memory if dolphin stays in the background for a while.

Dolphin is working as expected as long as kubernetes is not working.

Comment 2 Eric BURGHARD 2020-12-21 15:36:52 UTC

Some discussion on reddit related to this bug

https://www.reddit.com/r/kde/comments/hrtzyg/how_to_exclude_overlayfs_mounts_from_showing_in/

Comment 3 Mirosław Kopeć 2021-03-23 22:09:56 UTC

This bug is related to another bugs;
https://bugs.kde.org/show_bug.cgi?id=416972
https://bugs.kde.org/show_bug.cgi?id=413110

I also waiting for a fix because using Kubernetes and KDE together is very annoying. The bug is easy to reproduce, so hopefully someone with knowledge will fix it. On the other hand, those bugs were reported some time ago.

Comment 4 Ahmad Samir 2021-06-12 20:45:39 UTC

If you disable auto-completion in dolphin (right click in the location bar and from the menu select "text completion" -> none), does the location bar work as expected?

The memory consumption issues, might be related to bug 398908, could you test again with KIO 5.83?

Comment 5 alexartwww 2024-07-09 21:31:38 UTC

same for me. Will moving to kde 6 fix this problem?