https://bugs.kde.org/show_bug.cgi?id=445585
Bug ID: 445585
Summary: Dolphin should be able to identify a CIFS mount point
as remote and behave accordingly (very slow directory
browsing performance is possible)
Product: dolphin
Version: 20.12.3
Platform: Kubuntu Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: view-engine: details mode
Assignee: dolphin-bugs-n...@kde.org
Reporter: legac...@gmail.com
CC: kfm-de...@kde.org
Target Milestone: ---
SUMMARY
***
Dolphin seems to browse a CIFS mounted remote filesystem as if it were local,
which means that directory contents will be summarized in the "Size" column
causing a potentially massive performance hit.
***
STEPS TO REPRODUCE
1. Mount a SMB share as CIFS to your system. Preferably some directory in the
share contains a huge number of files or dirs... in my case one dir has about
5,000 subdirs which really causes a dramatic performance impact.
2. Browse to the mounted dir in Dolphin using "Details" view mode.
3. Dolphin may become unresponsive for up to 10 seconds as the default behavior
is that it's counting the number of items inside the directories which takes a
long time from an SMB source. Even changing the Size column to display file
sizes for dirs causes some impact.
4. Now browse to the same location but instead of using CIFS mounted path, use
"smb://" protocol path.
5. Same directories will display lightning fast because it is not populating
the "Size" column with information.
OBSERVED RESULT
Dolphin can become unresponsive as it is apparently not recognizing a CIFS
mount as a remote filesystem.
EXPECTED RESULT
Dolphin should recognize that the CIFS mount is a remote source, and employ the
same behavior as when browsing "smb://" path for instance, allowing lightning
fast performance.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kubuntu 21.04
KDE Plasma Version: 5.21.4
KDE Frameworks Version: 5.80.0
Qt Version: 5.15.2
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