[Bug 1597792] Re: plasmashell high CPU usage (100%+)

[Guy Stalnaker]

I have not used gdb to get a trace but the plasmashell behavior
described here matches what I see on my MacBookPro 5,5 with 16.04.01
freshly,newly installed today from dvd made with iso downloaded this
morning. Here's what top shows:

<quote>
top - 21:24:29 up 44 min,  2 users,  load average: 6.72, 6.83, 6.65
Tasks: 206 total,   2 running, 203 sleeping,   0 stopped,   0 zombie
%Cpu(s): 83.7 us, 16.3 sy,  0.0 ni,  0.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
GiB Mem :    3.589 total,    0.563 free,    2.296 used,    0.730 buff/cache
GiB Swap:    3.725 total,    3.668 free,    0.056 used.    1.005 avail Mem 

  PID USER      PR  NI    VIRT    RES    SHR S %CPU %MEM     TIME+ COMMAND                                                     
 2769 jstalnak  20   0 3683820 223080 104680 t 97.7  5.9  27:41.12 plasmashell    
</quote>

It can take 45-60 seconds to open an app. Load avg has climbed near 8
but usually hovers around 6.5-7.0. This is with konsole, chromium, and
System Settings open, 44 minutes after a reboot.

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Title:
  plasmashell high CPU usage (100%+)

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