We have 12 desktops running the latest version of KDE / Plasma / Dolphin from the Arch Linux repos. All are currently on dolphin 18.04.0. Today I went around to several of those desktops and I can report a new observation. Those without any bookmarks in the Places panel seem to respond quickly when adding a new bookmark or moving a bookmark. But those with a larger number of existing bookmarks exhibit slowness both when adding a new bookmark and when moving an existing bookmark up or down the order within Places. This slowness is new with a recent update. My sample size is small, but it does confirm that the issue is not limited to a single computer. Does this warrant changing the status to confirmed?

On the affected machines, is ~/.local/share/user-places.xbel incredibly long? Like, 1000+ lines long?

Created attachment 112519 [details]
attachment-10330-0.html

see reply inline

On Tue, May 8, 2018 at 2:51 PM, Nate Graham <bugzilla_noreply@kde.org>
wrote:

> https://bugs.kde.org/show_bug.cgi?id=393977
>
> Nate Graham <nate@kde.org> changed:
>
>            What    |Removed                     |Added
> ------------------------------------------------------------
> ----------------
>              Status|UNCONFIRMED                 |NEEDSINFO
>          Resolution|---                         |WAITINGFORINFO
>
> --- Comment #2 from Nate Graham <nate@kde.org> ---
> On the affected machines, is ~/.local/share/user-places.xbel incredibly
> long?
> Like, 1000+ lines long?
>

Yes, on my machine this file is 1415 lines long. A good portion of that
length is due to devices that are added automatically by the system. I
don't use those or even want them shown in Dolphin's Places.

Can I manually edit ~/.local/share/user-places.xbel to remove all the
devices I don't want? (Dolphin doesn't provide the option to remove them,
only to hide them.)

Thanks

Created attachment 112520 [details]
attachment-12534-0.html

see reply inline

On Tue, May 8, 2018 at 7:48 PM, Bug Reporter <bugreporter11@gmail.com>
wrote:

> see reply inline
>
> On Tue, May 8, 2018 at 2:51 PM, Nate Graham <bugzilla_noreply@kde.org>
> wrote:
>
>> https://bugs.kde.org/show_bug.cgi?id=393977
>>
>> Nate Graham <nate@kde.org> changed:
>>
>>            What    |Removed                     |Added
>> ------------------------------------------------------------
>> ----------------
>>              Status|UNCONFIRMED                 |NEEDSINFO
>>          Resolution|---                         |WAITINGFORINFO
>>
>> --- Comment #2 from Nate Graham <nate@kde.org> ---
>> On the affected machines, is ~/.local/share/user-places.xbel incredibly
>> long?
>> Like, 1000+ lines long?
>>
>
> Yes, on my machine this file is 1415 lines long. A good portion of that
> length is due to devices that are added automatically by the system. I
> don't use those or even want them shown in Dolphin's Places.
>
> Can I manually edit ~/.local/share/user-places.xbel to remove all the
> devices I don't want? (Dolphin doesn't provide the option to remove them,
> only to hide them.)
>
> Thanks
>

I experimented. I edited ~/.local/share/user-places.xbel to remove all the
automatically added or obsolete entries and the file was reduced to about
650 lines. I opened Dolphin and moved one bookmark up one place in the
Places list. Even with the smaller file, the operation was still slow
(requiring about 3 seconds to complete). After this simple operation,
~/.local/share/user-places.xbel increased to 997 lines and many of the
entries I had removed were restored.

The automatically restored entries are all of this type:

 <separator href=....">
  <info>
   <metadata owner="http://www.kde.org">
    <UDI>/org/kde/fstab/....</UDI>
    <isSystemItem>true</isSystemItem>
    <IsHidden>false</IsHidden>
   </metadata>
   <metadata owner="http://freedesktop.org">
    <bookmark:icon name="network-server"/>
   </metadata>
  </info>
  <title>... on server</title>
 </separator>

I do not need any of those in Places. These include 20 automatically added
"Remote devices" and 7 "Devices". I have 35 of my own bookmarks and those
are all I need.

After the first test, repeated tests (moving a bookmark in Places)  also
require about 3 seconds. (Until a recent Dolphin change a few weeks ago,
this operation was nearly instant.) The file ~/.local/share/user-places.xbel
remains at 997 lines after these repeated tests, as I'm sure you would have
expected.

Adding or removing bookmarks in Places is not the only function that is
slow now. I experience extensive slowness with operations in the file panes
under some circumstances. However, so far I am unable to give exact steps
to reproduce it. It seems to happen when I have had Dolphin open all day.

Hope that info helps. Thank you. Dolphin is the best Linux file manager!

Thanks for all the testing!

As another test, I have left Dolphin open for the last two days. Now clicking on any GUI element shows several seconds of delay and refreshing the file panes is very slow.

"top" shows high CPU usage for Dolphin in response to these routine GUI actions. Closing Dolphin causes 100% CPU usage for several seconds.

After reopening Dolphin, normal responsiveness returns for most actions (but not for bookmarks in the Places panel).

(In reply to bugreporter11 from comment #6)
> As another test, I have left Dolphin open for the last two days. Now
> clicking on any GUI element shows several seconds of delay and refreshing
> the file panes is very slow.
> 
> "top" shows high CPU usage for Dolphin in response to these routine GUI
> actions. Closing Dolphin causes 100% CPU usage for several seconds.
> 
> After reopening Dolphin, normal responsiveness returns for most actions (but
> not for bookmarks in the Places panel).

Please start dolphin from gdb and press CTRL+C when it gets stuck. Then copy here the stacktrace from gdb.

Created attachment 112990 [details]
attachment-10871-0.html

see below

On Sat, May 19, 2018 at 5:45 AM, Elvis Angelaccio <bugzilla_noreply@kde.org>
wrote:

> https://bugs.kde.org/show_bug.cgi?id=393977
>
> Please start dolphin from gdb and press CTRL+C when it gets stuck. Then
> copy
> here the stacktrace from gdb.
>

Is this the right method for running Dolphin from gdb?
$ gdb dolphin 2>&1 | tee dolphin.gdb
(gdb) run
Starting program: /usr/bin/dolphin

(In reply to bugreporter11 from comment #8)
> Is this the right method for running Dolphin from gdb?
> $ gdb dolphin 2>&1 | tee dolphin.gdb
> (gdb) run
> Starting program: /usr/bin/dolphin

Yes, that should work.

Created attachment 113003 [details]
attachment-5915-0.html

On Fri, Jun 1, 2018 at 5:04 PM, Elvis Angelaccio <bugzilla_noreply@kde.org>
wrote:

> https://bugs.kde.org/show_bug.cgi?id=393977
>
> --- Comment #9 from Elvis Angelaccio <elvis.angelaccio@kde.org> ---
> (In reply to bugreporter11 from comment #8)
> > Is this the right method for running Dolphin from gdb?
> > $ gdb dolphin 2>&1 | tee dolphin.gdb
> > (gdb) run
> > Starting program: /usr/bin/dolphin
>
> Yes, that should work.
>
>
> In my experience, the GUI gets slower and slower over time when I leave
Dolphin open. Prior to a few months ago, this did not happen. I would leave
Dolphin open for weeks (or months) at a time on my desktop computer. Since
a change a few months ago, I now close Dolphin each night. This keeps the
GUI acting relatively responsively.

For this test, I have been running Dolphin from gdb for two days without
closing it. Today I can notice a slight decrease in GUI responsiveness
(very slight), but the messages in gdb are exactly the same. There are no
additional error messages or anything that looks abnormal.

I'll continue this for another week or so and see if any messages change
and how much Dolphin slows down over time.

So far the messages I see are similar to these. There are not many of these:

Empty filename passed to function
kf5.kservice.services: KMimeTypeTrader: mimeType "" not found

inotify_add_watch("/home/user/Downloads/MyTemp") failed: "Permission denied"
org.kde.knotifications: Audio notification requested, but sound file from
notifyrc file was not found, aborting audio notification

Access to ' "/home/user/workspaces/xyz" ' denied, not owned by root,
executable flag not set.

UdevQt: unhandled device action "bind"
UdevQt: unhandled device action "unbind"

And only one message like each of these:
Trying to convert empty KLocalizedString to QString.
qt.accessibility.core: Cannot create accessible child interface for
object:  PlacesView(0x5555558f33a0)  index:  41

Other than that, the messages are mostly like this:

[New Thread 0x7fff81ffb700 (LWP 15125)]
[Thread 0x7fff81ffb700 (LWP 15125) exited]
org.kde.dolphin: Saving view-properties to ...

I would like to fix the permission issues and other issues, but I don't see
anything wrong with any permissions. I own the directories mentioned in the
messages. And I'm sure these messages are not related to the slow GUI
responsiveness issue I am troubleshooting now.

Created attachment 113050 [details]
attachment-12417-0.html

Here's an update. The Dolphin GUI has gotten very sluggish now (after
letting Dolphin run several days without closing it). However, there are no
unusual messages in gdb. Right now, copying a file from one file pane to
the other exhibits a very slow GUI, but there are zero debug messages
associated with this action. Any suggestions for next steps? Does the pmap
output below help? (As I mentioned, this GUI slowness is relatively new. I
first notice it a couple months ago after using Dolphin for more than 10
years.)

$ pmap 33240
33240:   /usr/bin/dolphin
0000555555554000      4K r-x-- dolphin
0000555555754000      4K r---- dolphin
0000555555755000      4K rw--- dolphin
0000555555756000 2308240K rw---   [ anon ]
00007fff6c000000    132K rw---   [ anon ]
00007fff6c021000  65404K -----   [ anon ]
00007fff70000000    132K rw---   [ anon ]
00007fff70021000  65404K -----   [ anon ]
00007fff74000000    132K rw---   [ anon ]
00007fff74021000  65404K -----   [ anon ]
00007fff78000000    132K rw---   [ anon ]
00007fff78021000  65404K -----   [ anon ]
00007fff7c000000    132K rw---   [ anon ]
00007fff7c021000  65404K -----   [ anon ]
00007fff84000000    132K rw---   [ anon ]
00007fff84021000  65404K -----   [ anon ]
00007fff88000000    132K rw---   [ anon ]
00007fff88021000  65404K -----   [ anon ]
00007fff8c000000    132K rw---   [ anon ]
00007fff8c021000  65404K -----   [ anon ]
00007fff90000000    132K rw---   [ anon ]
00007fff90021000  65404K -----   [ anon ]
00007fff94000000    132K rw---   [ anon ]
00007fff94021000  65404K -----   [ anon ]
00007fff98000000    132K rw---   [ anon ]
00007fff98021000  65404K -----   [ anon ]
00007fff9c000000    132K rw---   [ anon ]
00007fff9c021000  65404K -----   [ anon ]
00007fffa0000000    276K rw---   [ anon ]
00007fffa0045000  65260K -----   [ anon ]
00007fffa4000000    132K rw---   [ anon ]
00007fffa4021000  65404K -----   [ anon ]
00007fffa8069000      4K -----   [ anon ]
00007fffa806a000   8192K rwx--   [ anon ]
00007fffa886a000      4K -----   [ anon ]
00007fffa886b000   8192K rwx--   [ anon ]
00007fffa986c000      4K -----   [ anon ]
00007fffa986d000   8192K rwx--   [ anon ]
00007fffaa86e000      4K -----   [ anon ]
00007fffaa86f000   8192K rwx--   [ anon ]
00007fffab06f000     52K r-x-- extracthere.so
00007fffab07c000   2048K ----- extracthere.so
00007fffab27c000      4K r---- extracthere.so
00007fffab27d000      4K rw--- extracthere.so
00007fffab27e000    236K r-x-- libnss_systemd.so.2
00007fffab2b9000   2044K ----- libnss_systemd.so.2
00007fffab4b8000     12K r---- libnss_systemd.so.2
00007fffab4bb000      4K rw--- libnss_systemd.so.2
00007fffab4bc000    244K r-x-- libnss_mymachines.so.2
00007fffab4f9000   2044K ----- libnss_mymachines.so.2
00007fffab6f8000     12K r---- libnss_mymachines.so.2
00007fffab6fb000      4K rw--- libnss_mymachines.so.2
00007fffab8e2000    108K r-x-- KF5WindowSystemX11Plugin.so
00007fffab8fd000   2048K ----- KF5WindowSystemX11Plugin.so
00007fffabafd000      8K r---- KF5WindowSystemX11Plugin.so
00007fffabaff000      4K rw--- KF5WindowSystemX11Plugin.so
00007fffabb00000     20K r-x-- extractfileitemaction.so
00007fffabb05000   2044K ----- extractfileitemaction.so
00007fffabd04000      4K r---- extractfileitemaction.so
00007fffabd05000      4K rw--- extractfileitemaction.so
00007fffabd06000     80K r-x-- bluetoothfileitemaction.so
00007fffabd1a000   2048K ----- bluetoothfileitemaction.so
00007fffabf1a000      4K r---- bluetoothfileitemaction.so
00007fffabf1b000      4K rw--- bluetoothfileitemaction.so
00007fffabf1c000     12K r-x-- baloofilepropertiesplugin.so
00007fffabf1f000   2048K ----- baloofilepropertiesplugin.so
00007fffac11f000      4K r---- baloofilepropertiesplugin.so
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00007fffac22e000   2048K ----- libsqlite3.so.0.8.6
00007fffac42e000     20K r---- libsqlite3.so.0.8.6
00007fffac433000      8K rw--- libsqlite3.so.0.8.6
00007fffac435000      4K rw---   [ anon ]
00007fffac436000     64K r-x-- libqsqlite.so
00007fffac446000   2048K ----- libqsqlite.so
00007fffac646000      4K r---- libqsqlite.so
00007fffac647000      4K rw--- libqsqlite.so
00007fffac648000      8K r-x-- libutil-2.27.so
00007fffac64a000   2044K ----- libutil-2.27.so
00007fffac849000      4K r---- libutil-2.27.so
00007fffac84a000      4K rw--- libutil-2.27.so
00007fffac84b000     40K r-x-- libKF5Pty.so.5.45.0
00007fffac855000   2044K ----- libKF5Pty.so.5.45.0
00007fffaca54000      4K r---- libKF5Pty.so.5.45.0
00007fffaca55000      4K rw--- libKF5Pty.so.5.45.0
00007fffaca56000    620K r-x-- libkerfuffle.so.18.4.0
00007fffacaf1000   2048K ----- libkerfuffle.so.18.4.0
00007fffaccf1000     28K r---- libkerfuffle.so.18.4.0
00007fffaccf8000      4K rw--- libkerfuffle.so.18.4.0
00007fffaccf9000     20K r-x-- compressfileitemaction.so
00007fffaccfe000   2044K ----- compressfileitemaction.so
00007fffacefd000      4K r---- compressfileitemaction.so
00007fffacefe000      4K rw--- compressfileitemaction.so
00007fffaceff000  65536K rw-s- memfd:pulseaudio (deleted)
00007fffb0eff000  65536K rw-s- memfd:pulseaudio (deleted)
00007fffb4eff000  65536K rw-s- memfd:pulseaudio (deleted)
00007fffb8fc2000      8K r-x-- libmemory_keystore_plugin.so
00007fffb8fc4000   2044K ----- libmemory_keystore_plugin.so
00007fffb91c3000      4K r---- libmemory_keystore_plugin.so
00007fffb91c4000      4K rw--- libmemory_keystore_plugin.so
00007fffb91c5000      8K r-x-- libconsole_logger_plugin.so
00007fffb91c7000   2044K ----- libconsole_logger_plugin.so
00007fffb93c6000      4K r---- libconsole_logger_plugin.so
00007fffb93c7000      4K rw--- libconsole_logger_plugin.so
00007fffb93c8000      8K r-x-- libfile_logger_plugin.so
00007fffb93ca000   2044K ----- libfile_logger_plugin.so
00007fffb95c9000      4K r---- libfile_logger_plugin.so
00007fffb95ca000      4K rw--- libfile_logger_plugin.so
00007fffb95cb000      8K r-x-- libsyslog_plugin.so
00007fffb95cd000   2044K ----- libsyslog_plugin.so
00007fffb97cc000      4K r---- libsyslog_plugin.so
00007fffb97cd000      4K rw--- libsyslog_plugin.so
00007fffb97ce000      4K r-x-- libsd_journal_plugin.so
00007fffb97cf000   2048K ----- libsd_journal_plugin.so
00007fffb99cf000      4K r---- libsd_journal_plugin.so
00007fffb99d0000      4K rw--- libsd_journal_plugin.so
00007fffb99d1000    180K r-x-- libgomp.so.1.0.0
00007fffb99fe000   2044K ----- libgomp.so.1.0.0
00007fffb9bfd000      4K r---- libgomp.so.1.0.0
00007fffb9bfe000      4K rw--- libgomp.so.1.0.0
00007fffb9bff000     68K r-x-- libdrm.so.2.4.0
00007fffb9c10000   2044K ----- libdrm.so.2.4.0
00007fffb9e0f000      4K r---- libdrm.so.2.4.0
00007fffb9e10000      4K rw--- libdrm.so.2.4.0
00007fffb9e11000    240K r-x-- libsoxr.so.0.1.2
00007fffb9e4d000   2048K ----- libsoxr.so.0.1.2
00007fffba04d000      8K r---- libsoxr.so.0.1.2
00007fffba04f000      4K rw--- libsoxr.so.0.1.2
00007fffba050000    212K rw---   [ anon ]
00007fffba085000      8K r-x-- libva-drm.so.2.100.0
00007fffba087000   2044K ----- libva-drm.so.2.100.0
00007fffba286000      4K r---- libva-drm.so.2.100.0
00007fffba287000      4K rw--- libva-drm.so.2.100.0
00007fffba288000     20K r-x-- libva-x11.so.2.100.0
00007fffba28d000   2044K ----- libva-x11.so.2.100.0
00007fffba48c000      4K r---- libva-x11.so.2.100.0
00007fffba48d000      4K rw--- libva-x11.so.2.100.0
00007fffba48e000     12K r-x-- libvdpau.so.1.0.0
00007fffba491000   2044K ----- libvdpau.so.1.0.0
00007fffba690000      4K r---- libvdpau.so.1.0.0
00007fffba691000      4K rw--- libvdpau.so.1.0.0
00007fffba692000     44K r-x-- libgsm.so.1.0.13
00007fffba69d000   2044K ----- libgsm.so.1.0.13
00007fffba89c000      4K r---- libgsm.so.1.0.13
00007fffba89d000      4K rw--- libgsm.so.1.0.13
00007fffba89e000    292K r-x-- libmp3lame.so.0.0.0
00007fffba8e7000   2044K ----- libmp3lame.so.0.0.0
00007fffbaae6000      8K r---- libmp3lame.so.0.0.0
00007fffbaae8000      4K rw--- libmp3lame.so.0.0.0
00007fffbaae9000    180K rw---   [ anon ]
00007fffbab16000    164K r-x-- libopencore-amrnb.so.0.0.3
00007fffbab3f000   2044K ----- libopencore-amrnb.so.0.0.3
00007fffbad3e000      4K r---- libopencore-amrnb.so.0.0.3
00007fffbad3f000      4K rw--- libopencore-amrnb.so.0.0.3
00007fffbad40000     72K r-x-- libopencore-amrwb.so.0.0.3
00007fffbad52000   2048K ----- libopencore-amrwb.so.0.0.3
00007fffbaf52000      4K r---- libopencore-amrwb.so.0.0.3
00007fffbaf53000      4K rw--- libopencore-amrwb.so.0.0.3
00007fffbaf54000    360K r-x-- libopenjp2.so.2.3.0
00007fffbafae000   2044K ----- libopenjp2.so.2.3.0
00007fffbb1ad000      8K r---- libopenjp2.so.2.3.0
00007fffbb1af000      4K rw--- libopenjp2.so.2.3.0
00007fffbb1b0000    332K r-x-- libopus.so.0.6.1
00007fffbb203000   2044K ----- libopus.so.0.6.1
00007fffbb402000      4K r---- libopus.so.0.6.1
00007fffbb403000      4K rw--- libopus.so.0.6.1
00007fffbb404000     92K r-x-- libspeex.so.1.5.1
00007fffbb41b000   2048K ----- libspeex.so.1.5.1
00007fffbb61b000      4K r---- libspeex.so.1.5.1
00007fffbb61c000      4K rw--- libspeex.so.1.5.1
00007fffbb61d000     96K r-x-- libtheoradec.so.1.1.4
00007fffbb635000   2048K ----- libtheoradec.so.1.1.4
00007fffbb835000      4K r---- libtheoradec.so.1.1.4
00007fffbb836000      4K rw--- libtheoradec.so.1.1.4
00007fffbb837000    244K r-x-- libtheoraenc.so.1.1.2
00007fffbb874000   2048K ----- libtheoraenc.so.1.1.2
00007fffbba74000      4K r---- libtheoraenc.so.1.1.2
00007fffbba75000      4K rw--- libtheoraenc.so.1.1.2
00007fffbba76000   3584K r-x-- libvpx.so.5.0.0
00007fffbbdf6000   2048K ----- libvpx.so.5.0.0
00007fffbbff6000      8K r---- libvpx.so.5.0.0
00007fffbbff8000      4K rw--- libvpx.so.5.0.0
00007fffbbff9000     28K rw---   [ anon ]
00007fffbc000000  65536K rw-s- memfd:pulseaudio (deleted)
00007fffc0000000    132K rw---   [ anon ]
00007fffc0021000  65404K -----   [ anon ]
00007fffc402c000     36K r-x-- libwebpmux.so.3.0.2
00007fffc4035000   2044K ----- libwebpmux.so.3.0.2
00007fffc4234000      4K r---- libwebpmux.so.3.0.2
00007fffc4235000      4K rw--- libwebpmux.so.3.0.2
00007fffc4236000   1016K r-x-- libx264.so.152
00007fffc4334000   2048K ----- libx264.so.152
00007fffc4534000      4K r---- libx264.so.152
00007fffc4535000      4K rw--- libx264.so.152
00007fffc4536000    492K rw---   [ anon ]
00007fffc45b1000  14536K r-x-- libx265.so.151
00007fffc53e3000   2044K ----- libx265.so.151
00007fffc55e2000     16K r---- libx265.so.151
00007fffc55e6000     12K rw--- libx265.so.151
00007fffc55e9000     56K rw---   [ anon ]
00007fffc55f7000    632K r-x-- libxvidcore.so.4.3
00007fffc5695000   2044K ----- libxvidcore.so.4.3
00007fffc5894000      4K r---- libxvidcore.so.4.3
00007fffc5895000     40K rw--- libxvidcore.so.4.3
00007fffc589f000    420K rw---   [ anon ]
00007fffc5908000    128K r-x-- libva.so.2.100.0
00007fffc5928000   2048K ----- libva.so.2.100.0
00007fffc5b28000      4K r---- libva.so.2.100.0
00007fffc5b29000      4K rw--- libva.so.2.100.0
00007fffc5b2a000    108K r-x-- libswresample.so.2.9.100
00007fffc5b45000   2044K ----- libswresample.so.2.9.100
00007fffc5d44000      8K r---- libswresample.so.2.9.100
00007fffc5d46000      4K rw--- libswresample.so.2.9.100
00007fffc5d47000    388K r-x-- libavutil.so.55.78.100
00007fffc5da8000   2044K ----- libavutil.so.55.78.100
00007fffc5fa7000     72K r---- libavutil.so.55.78.100
00007fffc5fb9000      4K rw--- libavutil.so.55.78.100
00007fffc5fba000     76K rw---   [ anon ]
00007fffc5fcd000  12632K r-x-- libavcodec.so.57.107.100
00007fffc6c23000   2048K ----- libavcodec.so.57.107.100
00007fffc6e23000    232K r---- libavcodec.so.57.107.100
00007fffc6e5d000    180K rw--- libavcodec.so.57.107.100
00007fffc6e8a000   8264K rw---   [ anon ]
00007fffc769c000     88K r-x-- libchromaprint.so.1.4.3
00007fffc76b2000   2048K ----- libchromaprint.so.1.4.3
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00007fffef549000   1612K r-x-- libm-2.27.so
00007fffef6dc000   2044K ----- libm-2.27.so
00007fffef8db000      4K r---- libm-2.27.so
00007fffef8dc000      4K rw--- libm-2.27.so
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00007fffef8e1000   2044K ----- libattr.so.1.1.0
00007fffefae0000      4K r---- libattr.so.1.1.0
00007fffefae1000      4K rw--- libattr.so.1.1.0
00007fffefae2000    624K r-x-- libKF5Attica.so.5.45.0
00007fffefb7e000   2044K ----- libKF5Attica.so.5.45.0
00007fffefd7d000     20K r---- libKF5Attica.so.5.45.0
00007fffefd82000      4K rw--- libKF5Attica.so.5.45.0
00007fffefd83000    452K r-x-- libKF5NewStuffCore.so.5.45.0
00007fffefdf4000   2048K ----- libKF5NewStuffCore.so.5.45.0
00007fffefff4000     12K r---- libKF5NewStuffCore.so.5.45.0
00007fffefff7000      4K rw--- libKF5NewStuffCore.so.5.45.0
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00007ffff037a000     32K r---- libQt5Network.so.5.10.1
00007ffff0382000      4K rw--- libQt5Network.so.5.10.1
00007ffff0383000      4K rw---   [ anon ]
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00007ffff06bd000      4K r---- libX11.so.6.3.0
00007ffff06be000     20K rw--- libX11.so.6.3.0
00007ffff06c3000     16K r-x-- libQt5X11Extras.so.5.10.1
00007ffff06c7000   2044K ----- libQt5X11Extras.so.5.10.1
00007ffff08c6000      4K r---- libQt5X11Extras.so.5.10.1
00007ffff08c7000      4K rw--- libQt5X11Extras.so.5.10.1
00007ffff08c8000    296K r-x-- libKF5WindowSystem.so.5.45.0
00007ffff0912000   2044K ----- libKF5WindowSystem.so.5.45.0
00007ffff0b11000     12K r---- libKF5WindowSystem.so.5.45.0
00007ffff0b14000      4K rw--- libKF5WindowSystem.so.5.45.0
00007ffff0b15000    136K r-x-- libKF5FileMetaData.so.5.45.0
00007ffff0b37000   2048K ----- libKF5FileMetaData.so.5.45.0
00007ffff0d37000      4K r---- libKF5FileMetaData.so.5.45.0
00007ffff0d38000      4K rw--- libKF5FileMetaData.so.5.45.0
00007ffff0d39000    220K r-x-- libKF5Codecs.so.5.45.0
00007ffff0d70000   2048K ----- libKF5Codecs.so.5.45.0
00007ffff0f70000     12K r---- libKF5Codecs.so.5.45.0
00007ffff0f73000      4K rw--- libKF5Codecs.so.5.45.0
00007ffff0f74000    248K r-x-- libKF5TextWidgets.so.5.45.0
00007ffff0fb2000   2048K ----- libKF5TextWidgets.so.5.45.0
00007ffff11b2000     16K r---- libKF5TextWidgets.so.5.45.0
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00007ffff13b8000      4K r---- libdolphinvcs.so.5.0.0
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00007ffff4b54000     16K r---- libKF5ConfigWidgets.so.5.45.0
00007ffff4b58000      4K rw--- libKF5ConfigWidgets.so.5.45.0
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00007ffff503c000      4K rw--- libKF5Completion.so.5.45.0
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00007ffff5078000   2048K ----- libKF5IconThemes.so.5.45.0
00007ffff5278000      8K r---- libKF5IconThemes.so.5.45.0
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00007ffff62ab000    140K r-x-- libKF5JobWidgets.so.5.45.0
00007ffff62ce000   2044K ----- libKF5JobWidgets.so.5.45.0
00007ffff64cd000      8K r---- libKF5JobWidgets.so.5.45.0
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00007ffff67ff000     48K r---- libKF5KIOWidgets.so.5.45.0
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00007ffff6a6a000     20K r---- libKF5Parts.so.5.45.0
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2a67214e-3529-4820-baed-be02d082aa69-le64.cache-7
00007ffff7ec5000    588K r--s-
7587675c-1a27-493e-a626-a5aee47fa952-le64.cache-7
00007ffff7f58000    200K r--s-
443c0c1e-7799-472d-9a5d-a18856176580-le64.cache-7
00007ffff7f8a000    232K rw---   [ anon ]
00007ffff7fcb000      4K r--s- mime.cache
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1f173b8c-5854-4d9d-a4a7-002a42688754-le64.cache-7
00007ffff7fda000     20K r--s-
b0747b6c-8b68-4722-8aae-d82a6ce915cd-le64.cache-7
00007ffff7fdf000     12K r--s-
46ac2e97-673d-4157-a1d8-8a36d51f6ab5-le64.cache-7
00007ffff7fe2000     24K r--s-
be83164f-9e8d-4ae7-aa54-c2ba987d0731-le64.cache-7
00007ffff7fe8000     24K r--s-
1acc766d-d939-40a8-b36b-68d00fd097c0-le64.cache-7
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f849a710-fd50-49d3-8ef8-7fc594fb0116-le64.cache-7
00007ffff7ff1000      4K r---- kcoreaddons5_qt.qm
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00007ffff7ff5000      4K r---- kjobwidgets5_qt.qm
00007ffff7ff6000      4K r---- kjobwidgets5_qt.qm
00007ffff7ff7000     12K r----   [ anon ]
00007ffff7ffa000      8K r-x--   [ anon ]
00007ffff7ffc000      4K r---- ld-2.27.so
00007ffff7ffd000      4K rw--- ld-2.27.so
00007ffff7ffe000      4K rw---   [ anon ]
00007ffffffde000    132K rwx--   [ stack ]
 total          4514648K




On Fri, Jun 1, 2018 at 5:25 PM, Bug Reporter <bugreporter11@gmail.com>
wrote:

> On Fri, Jun 1, 2018 at 5:04 PM, Elvis Angelaccio <bugzilla_noreply@kde.org
> > wrote:
>
>> https://bugs.kde.org/show_bug.cgi?id=393977
>>
>> --- Comment #9 from Elvis Angelaccio <elvis.angelaccio@kde.org> ---
>> (In reply to bugreporter11 from comment #8)
>> > Is this the right method for running Dolphin from gdb?
>> > $ gdb dolphin 2>&1 | tee dolphin.gdb
>> > (gdb) run
>> > Starting program: /usr/bin/dolphin
>>
>> Yes, that should work.
>>
>>
>> In my experience, the GUI gets slower and slower over time when I leave
> Dolphin open. Prior to a few months ago, this did not happen. I would leave
> Dolphin open for weeks (or months) at a time on my desktop computer. Since
> a change a few months ago, I now close Dolphin each night. This keeps the
> GUI acting relatively responsively.
>
> For this test, I have been running Dolphin from gdb for two days without
> closing it. Today I can notice a slight decrease in GUI responsiveness
> (very slight), but the messages in gdb are exactly the same. There are no
> additional error messages or anything that looks abnormal.
>
> I'll continue this for another week or so and see if any messages change
> and how much Dolphin slows down over time.
>
> So far the messages I see are similar to these. There are not many of
> these:
>
> Empty filename passed to function
> kf5.kservice.services: KMimeTypeTrader: mimeType "" not found
>
> inotify_add_watch("/home/user/Downloads/MyTemp") failed: "Permission
> denied"
> org.kde.knotifications: Audio notification requested, but sound file from
> notifyrc file was not found, aborting audio notification
>
> Access to ' "/home/user/workspaces/xyz" ' denied, not owned by root,
> executable flag not set.
>
> UdevQt: unhandled device action "bind"
> UdevQt: unhandled device action "unbind"
>
> And only one message like each of these:
> Trying to convert empty KLocalizedString to QString.
> qt.accessibility.core: Cannot create accessible child interface for
> object:  PlacesView(0x5555558f33a0)  index:  41
>
> Other than that, the messages are mostly like this:
>
> [New Thread 0x7fff81ffb700 (LWP 15125)]
> [Thread 0x7fff81ffb700 (LWP 15125) exited]
> org.kde.dolphin: Saving view-properties to ...
>
> I would like to fix the permission issues and other issues, but I don't
> see anything wrong with any permissions. I own the directories mentioned in
> the messages. And I'm sure these messages are not related to the slow GUI
> responsiveness issue I am troubleshooting now.
>
>
>
>

One day later and now Dolphin is using over 5 GB of RAM. Specifically, pmap shows "total 5551616K"

Is any other information required? If not, I will close and reopen Dolphin to free up all this memory and get Dolphin back to running snappy.

Hmm, what's your usual workflow? Do you open a lot of tabs/windows with many files?

Created attachment 113075 [details]
attachment-9024-0.html

On Mon, Jun 4, 2018 at 4:51 PM, Elvis Angelaccio <bugzilla_noreply@kde.org>
wrote:

> https://bugs.kde.org/show_bug.cgi?id=393977
>
> --- Comment #13 from Elvis Angelaccio <elvis.angelaccio@kde.org> ---
> Hmm, what's your usual workflow? Do you open a lot of tabs/windows with
> many
> files?
>

Thanks for following up. I do not do anything differently than I have done
for the last ten years of using Dolphin. This behavior started a few months
ago. I certainly do not "max out" Dolphin in any way. I generally use it
only with a couple tabs open. I demand a lot more of Kate, for example,
where I keep large projects open all the time. I would say I use Dolphin
lightly.

BTW, I love Dolphin. I think it is the best file manager on Linux. I'm not
here to bash Dolphin. I'm just motivated to provide any feedback I can
regarding this issue.

I went ahead and closed Dolphin and reopened it. After that, pmap reports the following memory usage:

total 853220K

That's down from this amount just before I closed & reopened it:
total 5551616K

That's a reduction of 4698396 or around 4.5 GB. This is my guess: it looks like Dolphin memory usage grows by 1 GB per day on average and that after a couple days the UI becomes very sluggish.

There have been various memory leaks that were fixed just this week, so it'd be great if you could test again after the release of KDE Applications 18.08 (16th of August). For now, I'll set this report to NEEDSINFO/LATER.

18.08 has been released for about a month now. Have you been able to update Dolphin and test this again? It'd be great to know if you do still experience this issue.

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days, the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information.

For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please set the bug status as REPORTED so that the KDE team knows that the bug is ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!

I am running Dolphin 18.08.1 on Arch Linux. The problem still exists for me. To reproduce, let Dolphin stay open for a few days. Then add or remove a bookmark in the Places panel. Dolphin will freeze for several minutes.

There are other symptoms of Dolphin being much slower than it was prior to the changes that were made a couple months before I first reported this issue. However, this bookmark test is an easy one to quantify. Previously, there was essentially no delay. Now, adding a bookmark makes Dolphin unresponsive for several seconds, and if Dolphin has been left open for a few days, that delay increases to several minutes.

I may have more bookmarks in Dolphin than some people, but it is not an unreasonable number. Back on May 8, we discussed the size of my ~/.local/share/user-places.xbel file. It is currently 1192 lines.

Anything else I can tell you?

Following up on my last comment, the issue seems to have gotten a bit worse after 18.08.2.

I used to leave Dolphin open for days and weeks at a time, with a number of tabs set up for longer term tasks. Now that I have to close Dolphin several times a day to keep it responsive, I see that Dolphin would benefit from saved/named sessions like those found in Kate.

Running KDE Neon 18.04, since an update sometime in october, I've been noticing huge slowdowns with Dolphin also, I was out of country for a while so I had a big backlog of updates and can't nail down exactly when it started, am currently up to date on all packages.

I average 6ish tabs open in dolphin, after some days, maybe only hours of general usage, I can see the dolphin process spike to 100% cpu when I am hovering over files, the animation of hovering over the files is also very lagged like its really struggling, the cpu spiking will stop if i dont move the mouse, and resume as I hover over another file, even simple small txt files. The same behavior is seen when switching tabs as well.

I tried closing all tabs down to just 1 and it was noticeably better bug still laggy, only after fully restarting dolphin did I get normal fast performance again. I opened up a bunch of tabs (6) to various folders I work in and was still fast since the restart.

I'm a programmer but not experienced in linux development, but this feels like a resource build up occurring that isn't getting cleaned up, causing heavy cpu work just to do basic things.

I'd be happy to try debugging or monitoring logs as the issue returns but at the moment I wouldn't know where to start in that regard xD.

Software:
dolphin 18.08.3
plasma 5.14.4
frameworks 5.52.0
qt: 5.11.2
kernel: 4.15

The issue still exists.

Software versions:
dolphin 18.12.2
plasmashell 5.15.0
Qt version 5.12.1

I have also been noticing huge slowdowns with Dolphin for a while now. First noticed it around the time this bug was opened. 

My issues are the same as those already reported here. Previously, I was able to keep Dolphin open. Now I have to close Dolphin after each use.


Software:
dolphin 19.04.3
plasmashell 5.16.4
Qt 5.13.0
kernel: 5.2

I'm investigating slow UI responsiveness in Dolphin on my desktop & noticed this bug report. I also run Arch Linux. What caught my attention is this part of the report: "In particular, adding or moving a bookmark in the Places panel has a delay of several seconds."

That is the same behavior I'm observing.

Adding a new bookmark to Dolphin's Places sidebar has a long delay and it causes the Dolphin UI to freeze for this time. The same delay is seen if I edit the item in Places and change its display name, or remove an item.

I timed dragging & dropping a local directory onto Places. It took 15 seconds for that item to appear in Places, but Dolphin was still unresponsive for an addition 10 seconds. It was about 25 seconds before I could navigate or use the UI. The delay is almost the same for a name change. Deleting an item from Places seems to require about 15 seconds.

Other operations in Dolphin do not appear to be slow, and the overall experience is not slow. There is one thing I notice that it not mentioned by the OP. All KDE file-open dialogs open slowly. It takes about 2 seconds for the file-open dialog to display in Kate or any other application. GTK file-open dialogs are nearly instant.

wc -l ~/.local/share/user-places.xbel
1649

I use KDE on a number of different devices. The computer used for the timings mentioned above has 128 GB of RAM, a Samsung Pro NVMe, nVidia RTX 2080 GPU and an Intel i9-9900K. It has 15 NFS shared folders mounted. It has a large & slow internal HDD that is only used for automated backups and I don't open this backup location in Dolphin anyway.

close Dolphin
mv ~/.local/share/user-places.xbel ~/.local/share/user-places.xbel.bak
open Dolphin

The above steps eliminate the slowness. That also eliminates all my Places bookmarks, so it is not a solution. For testing, it does indicate that the comment by Nate Graham (2018-05-08) is looking in the right direction.

I was able to reproduce the bug adding many many entries to my bookmark menu and get a trace:

Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f01b57b2d39 in QObjectPrivate::setParent_helper(QObject*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
(gdb) bt
#0  0x00007f01b57b2d39 in QObjectPrivate::setParent_helper(QObject*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f01b57b3623 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f01b6276257 in QAction::~QAction() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#3  0x00007f01b627628d in QAction::~QAction() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#4  0x00007f01b6403fdf in QMenu::clear() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#5  0x00007f01b76a88e3 in KDEPrivate::KUrlNavigatorPlacesSelector::updateMenu (this=0x564235251f80)
    at /home/meven/kde/src/kio/src/filewidgets/kurlnavigatorplacesselector.cpp:72
#6  0x00007f01b57ab458 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f01b572ba29 in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f01b76782b3 in KFilePlacesModel::Private::_k_reloadBookmarks (thi


#0  0x00007f01b6a482a4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Xml.so.5
#1  0x00007f01b6a48ae9 in QDomNode::namedItem(QString const&) const () from /usr/lib/x86_64-linux-gnu/libQt5Xml.so.5
#2  0x00007f01b75c09ae in cd (node=..., name=..., create=<optimized out>) at /home/meven/kde/src/kbookmarks/src/kbookmark.cpp:48
#3  0x00007f01b75c3276 in KBookmark::metaData (this=this@entry=0x7ffeb71ba1a0, owner=..., create=create@entry=false)
    at /home/meven/kde/src/kbookmarks/src/kbookmark.cpp:586
#4  0x00007f01b75c47fd in KBookmark::metaDataItem (this=this@entry=0x7ffeb71ba1a0, key=...)
    at /home/meven/kde/src/kbookmarks/src/kbookmark.cpp:36
#5  0x00007f01b766dec8 in KFilePlacesItem::isDevice (this=this@entry=0x56423b41eea0)
    at /home/meven/kde/src/kio/src/filewidgets/kfileplacesitem.cpp:101
#6  0x00007f01b766f8b3 in KFilePlacesItem::data (this=0x56423b41eea0, role=0)
    at /home/meven/kde/src/kio/src/filewidgets/kfileplacesitem.cpp:164
#7  0x00007f01b767211b in KFilePlacesModel::data (this=0x564235563d10, index=..., role=<optimized out>)
    at /home/meven/kde/src/kio/src/filewidgets/kfileplacesmodel.cpp:538
#8  0x00007f01b7671f8f in KFilePlacesModel::text (this=<optimized out>, index=...)
    at /home/meven/kde/src/kio/src/filewidgets/kfileplacesmodel.cpp:439
#9  0x00007f01b76a8b55 in KDEPrivate::KUrlNavigatorPlacesSelector::updateMenu (this=0x56423554d790)
    at /home/meven/kde/src/kio/src/filewidgets/kurlnavigatorplacesselector.cpp:91
#10 0x00007f01b57ab458 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f01b572ba29 in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

The culprit is `KUrlNavigatorPlacesSelector::updateMenu` clears the whole menu for each place insertion or removal, twice over (because of dataChanged and rowsInserted connection). And the inner loop of updateMenu is not light. Making adding new places an exponentially slower operation.

To solve this issue :
1/ We need to call updateMenu once per update to the model
2/ We need to make the update progress incremental idealy

> I was able to reproduce the bug adding many many entries to my bookmark menu...

That's good news. Thanks for your work on this issue.

I would like to add an observation. In my case I do not have to add "many many" entries.  Dolphin automatically adds entries for all mount points. The mere fact that my system has 15 NFS mounts and more than one local storage device is sufficient to cause this issue with a modest number of my own bookmark entries in Places.

If I delete these autogenerated entries from `user-places.xbel`, Dolphin puts them back -- even though I don't need or use them in Dolphin. 

Maybe it would also help to have an option to tell this code to ignore certain mounts?

(In reply to MountainX from comment #27)
> 
> I would like to add an observation. In my case I do not have to add "many
> many" entries.  Dolphin automatically adds entries for all mount points. The
> mere fact that my system has 15 NFS mounts and more than one local storage
> device is sufficient to cause this issue with a modest number of my own
> bookmark entries in Places.

Fixing this bug could fix the issue you are describing.
If not, it sounds like it is a different bug and we might want to open a new bug with your specific case.
Wait to see once this bug is resolved fix your issue before opening a new one. 

> 
> If I delete these autogenerated entries from `user-places.xbel`, Dolphin
> puts them back -- even though I don't need or use them in Dolphin. 
> 
> Maybe it would also help to have an option to tell this code to ignore
> certain mounts?

Right click on the entry in the place menu > Hide, it's that simple.
It works on places groups too, and can be undone using the "show hidden places" of the groups context menu.

>> Maybe it would also help to have an option to tell this code to ignore
>> certain mounts?
>Right click on the entry in the place menu > Hide, it's that simple.

That does not remove the items from ~/.local/share/user-places.xbel

Instead of "hide" I was suggesting an "ignore" feature that would avoid placing unwanted system mount points in user-places.xbel. The name of the file implies they are user-places, which seems to indicate it should contain only entries the user is interested in. Just my thoughts.

Thank you for your work on this issue!

Git commit 60475571926d79ffad90061985f39c3ce9c686d1 by David Faure, on behalf of Méven Car.
Committed on 22/05/2020 at 17:53.
Pushed by dfaure into branch 'master'.

KUrlNavigatorPlacesSelector: only update once the menu on changes

Previously the updateMenu function was called twice for each place
added/removed.

M  +2    -0    src/filewidgets/kfileplacesmodel.cpp
M  +7    -0    src/filewidgets/kfileplacesmodel.h
M  +1    -5    src/filewidgets/kurlnavigatorplacesselector.cpp

https://invent.kde.org/frameworks/kio/commit/60475571926d79ffad90061985f39c3ce9c686d1

I look forward to testing git commit 60475571926d79ffad90061985f39c3ce9c686d1. Thanks for the working being done on it. I believe that fix will help with the issue of changes to the Places bookmarks being very slow.

In the OP and the comments of this bug report at least two other issues are mentioned:

1. a memory leak
2. Dolphin and KDE file-open dialogs in all KDE applications open slowly. It takes about 2 seconds for the file-open dialog to display in Kate or any other application.

The memory leak may not be related to this issue (Dolphin slow for specific operations) so I won't say more about it.

However, the Places bookmarks are related to the long delay in Dolphin and KDE file-open dialogs opening up. I state this because when I delete ~/.local/share/user-places.xbel, the issue goes away and these dialogs (and Dolphin) open very quickly.

That should be easy to confirm. If you make a large enough bookmarks list to see the problem on adding or editing a bookmark, you should also see file-open dialogs become slow to come up.

My question is should I make a separate bug report or is this likely related to the fixes being done here?

(In reply to MountainX from comment #31)
> I look forward to testing git commit
> 60475571926d79ffad90061985f39c3ce9c686d1. Thanks for the working being done
> on it. I believe that fix will help with the issue of changes to the Places
> bookmarks being very slow.
> 
> In the OP and the comments of this bug report at least two other issues are
> mentioned:
> 
> 1. a memory leak
> 2. Dolphin and KDE file-open dialogs in all KDE applications open slowly. It
> takes about 2 seconds for the file-open dialog to display in Kate or any
> other application.
> 
> The memory leak may not be related to this issue (Dolphin slow for specific
> operations) so I won't say more about it.
> 
> However, the Places bookmarks are related to the long delay in Dolphin and
> KDE file-open dialogs opening up. I state this because when I delete
> ~/.local/share/user-places.xbel, the issue goes away and these dialogs (and
> Dolphin) open very quickly.
> 
> That should be easy to confirm. If you make a large enough bookmarks list to
> see the problem on adding or editing a bookmark, you should also see
> file-open dialogs become slow to come up.

The same underlying code is used in Dolphin and KF File Open dialogs, that is expected.

> 
> My question is should I make a separate bug report or is this likely related
> to the fixes being done here?

Separate always for different things.

As bug fixer We don't have time to read N comments, the more specific bugs the easiest and quickest it is to solve.
And use good naming "Dolphin has become slow recently" could have been more precisely "Creating of moving places freezes dolphin for seconds"

Then let bug triage group the bugs if needed.
Like here there could have been a bug reported for File dialogs too and we would have marked one of the two duplicate of the other.

Created attachment 128965 [details]
attachment-14445-0.html

I'm the original reporter of bug 393977
<https://bugs.kde.org/show_bug.cgi?id=393977>
Thanks for working on it.

> 2. Dolphin and KDE file-open dialogs in all KDE applications open slowly.
It
> takes about 2 seconds for the file-open dialog to display in Kate or any
> other application.

I also see that same issue. I opened a separate bug report for it.

Bug 422306 <https://bugs.kde.org/show_bug.cgi?id=422306>

If you see the same issue, comment at that bug report.

On Wed, May 27, 2020 at 1:21 AM Méven Car <bugzilla_noreply@kde.org> wrote:

> https://bugs.kde.org/show_bug.cgi?id=393977
>
> Méven Car <meven29@gmail.com> changed:
>
>            What    |Removed                     |Added
>
> ----------------------------------------------------------------------------
>           Component|general                     |general
>                  CC|                            |kdelibs-bugs@kde.org
>          Resolution|---                         |FIXED
>              Status|CONFIRMED                   |RESOLVED
>            Assignee|dolphin-bugs-null@kde.org   |faure@kde.org
>    Version Fixed In|                            |5.71
>       Latest Commit|                            |
> https://invent.kde.org/fram
>                    |
> |eworks/kio/commit/604755719
>                    |
> |26d79ffad90061985f39c3ce9c6
>                    |                            |86d1
>             Version|18.04.0                     |5.70.0
>             Product|dolphin                     |frameworks-kio
>
> --- Comment #32 from Méven Car <meven29@gmail.com> ---
> (In reply to MountainX from comment #31)
> > I look forward to testing git commit
> > 60475571926d79ffad90061985f39c3ce9c686d1. Thanks for the working being
> done
> > on it. I believe that fix will help with the issue of changes to the
> Places
> > bookmarks being very slow.
> >
> > In the OP and the comments of this bug report at least two other issues
> are
> > mentioned:
> >
> > 1. a memory leak
> > 2. Dolphin and KDE file-open dialogs in all KDE applications open
> slowly. It
> > takes about 2 seconds for the file-open dialog to display in Kate or any
> > other application.
> >
> > The memory leak may not be related to this issue (Dolphin slow for
> specific
> > operations) so I won't say more about it.
> >
> > However, the Places bookmarks are related to the long delay in Dolphin
> and
> > KDE file-open dialogs opening up. I state this because when I delete
> > ~/.local/share/user-places.xbel, the issue goes away and these dialogs
> (and
> > Dolphin) open very quickly.
> >
> > That should be easy to confirm. If you make a large enough bookmarks
> list to
> > see the problem on adding or editing a bookmark, you should also see
> > file-open dialogs become slow to come up.
>
> The same underlying code is used in Dolphin and KF File Open dialogs, that
> is
> expected.
>
> >
> > My question is should I make a separate bug report or is this likely
> related
> > to the fixes being done here?
>
> Separate always for different things.
>
> As bug fixer We don't have time to read N comments, the more specific bugs
> the
> easiest and quickest it is to solve.
> And use good naming "Dolphin has become slow recently" could have been more
> precisely "Creating of moving places freezes dolphin for seconds"
>
> Then let bug triage group the bugs if needed.
> Like here there could have been a bug reported for File dialogs too and we
> would have marked one of the two duplicate of the other.
>
> --
> You are receiving this mail because:
> You reported the bug.