[kde] [Bug 503430] New: Connecting my AOSP smartphone causes all filesystem operations to significantly slow

[Roke Julian Lockhart Beedell]

https://bugs.kde.org/show_bug.cgi?id=503430

            Bug ID: 503430
           Summary: Connecting my AOSP smartphone causes all filesystem
                    operations to significantly slow
    Classification: I don't know
           Product: kde
           Version: unspecified
          Platform: Fedora RPMs
               URL: https://discussion.fedoraproject.org/t/connecting-my-s
                    martphone-to-my-pc-via-a-hub-causes-filesystem-slowdow
                    n/150633/4?u=rokejulianlockhart#:~:text=:speech_balloo
                    n:,a%20hub)%20causes%20filesystem%20slowdown
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: 4wy78uwh at rokejulianlockhart.addy.io
  Target Milestone: ---

Created attachment 180700
  --> https://bugs.kde.org/attachment.cgi?id=180700&action=edit
An Archive Of Unprocessed Performance Data After Connection

SUMMARY

Connecting my smartphone to my PC causes filesystem slowdown for all KDE
applications I've tried. That is, Dolphin, Gwenview, and the File Picker KDE
Portal (via Gittyup's Flatpak). This behaviour is new.

STEPS TO REPRODUCE

To reproduce the exact configuration I have (IDK how much applies):

1. Connect a SITECOM CN-386 4-port USB-C hub to the MB's TB4 port.
2. Connect a XAOSUN TB4 cable to the hub.
3. Connect a Fairphone 5 5G to the cable. On my smartphone, I have USB
debugging enabled.

OBSERVED RESULT

Every application which interacts with the filesystem slows to an unreasonable
amount.

EXPECTED RESULT

It shouldn't slow. It never did, until now.

SOFTWARE/OS VERSIONS

I've explicitly verified that this *affects*
`xdg-desktop-portal-kde-6.3.4-2.fc42.x86_64`, `dolphin-25.04.0-3.fc42.x86_64`,
and `gwenview-25.04.0-2.fc42.x86_64` (and, strangely,
`android-tools-35.0.2-3.fc42.x86_64` and `sudo-1.9.15-7.p5.fc42.x86_64`). The
DE and OS are undermentioned:

> Operating System: Fedora Linux 42
> KDE Plasma Version: 6.3.4
> KDE Frameworks Version: 6.13.0
> Qt Version: 6.9.0
> Kernel Version: 6.14.3-300.fc42.x86_64 (64-bit)
> Graphics Platform: Wayland

> Manufacturer: ASRock
> Product Name: X670E Taichi

I've also verified that this *doesn't* affect
`xdg-desktop-portal-gtk-1.15.3-1.fc42.x86_64`.

ADDITIONAL INFORMATION

I'll add some files with the undermentioned data contained:

> .
> ├── Flamegraphs
> │   ├── bad-adb.avif
> │   ├── bad-dolphin.avif
> │   ├── bad-gwenview.avif
> │   ├── good-adb.avif
> │   ├── good-dolphin.avif
> │   └── good-gwenview.avif
> └── Performance Data
>     ├── Processed
>     │   ├── bad-adb.data.perfparser
>     │   ├── bad-dolphin.data.perfparser
>     │   ├── bad-gwenview.data.perfparser
>     │   ├── good-adb.data.perfparser
>     │   ├── good-dolphin.data.perfparser
>     │   └── good-gwenview.data.perfparser
>     └── Unprocessed
>         ├── bad-adb.data
>         ├── bad-dolphin.data
>         ├── bad-gwenview.data
>         ├── good-adb.data
>         ├── good-dolphin.data
>         └── good-gwenview.data
> 
> 5 directories, 18 files

This was originally reported at
https://discussion.fedoraproject.org/t/connecting-my-smartphone-to-my-pc-via-a-hub-causes-filesystem-slowdown/150633/4?u=rokejulianlockhart#:~:text=:speech_balloon:,a%20hub)%20causes%20filesystem%20slowdown.

-- 
You are receiving this mail because:
You are the assignee for the bug.