https://bugs.kde.org/show_bug.cgi?id=496605

            Bug ID: 496605
           Summary: notifications freeze system under heavy load
    Classification: Plasma
           Product: plasmashell
           Version: 6.2.3
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Notifications
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected]
  Target Milestone: 1.0

SUMMARY
I am facing a problem where the system hangs when I am running a heavy task, in
my case compiling Android applications in Android Studio, and at the same time
I get a lot of notifications from Firefox. This only happens on my primary
desktop because I have a notebook where I have not faced hangs after
notifications yet. The problem is most visible after a system suspend, where I
left open Firefox, which after the suspend receive a lot of notifications that
cause the system to hang. It is important to say that only the plasma hangs, as
other applications run smoothly.

STEPS TO REPRODUCE
1. Run a resource intensive task
2. Receive a lot of notifications through Firefox 
3. You will see hangs

OBSERVED RESULT
The system hangs after receiving a lot of notifications under heavy load.

EXPECTED RESULT
The system should run smoothly.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.2.3
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.0
Kernel Version: 6.11.9-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 5800X 8-Core Processor
Memory: 31.3 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 3060/PCIe/SSE2

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