[kmail2] [Bug 401943] New: Kmail uses excessive CPU resources, heating up computer

Paul Brown bugzilla_noreply at kde.org
Mon Dec 10 08:34:51 GMT 2018


https://bugs.kde.org/show_bug.cgi?id=401943

            Bug ID: 401943
           Summary: Kmail uses excessive CPU resources, heating up
                    computer
           Product: kmail2
           Version: unspecified
          Platform: Manjaro
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: paul.brown at kde.org
  Target Milestone: ---

SUMMARY

When I start Kmail, the fan starts spinning madly and seems to use up too many
resources on the CPU.

STEPS TO REPRODUCE
1. Start Kmail

OBSERVED RESULT
Fan starts spinning excessively and does not stop until Kmail is closed. top
shows Kmail as the most resource-hungry process.

EXPECTED RESULT

None of the above.

SOFTWARE/OS VERSIONS
Kmail: 5.9.3
KDE Plasma Version: 5.14.4
KDE Frameworks Version: 5.52.0
Qt Version: 5.11.2 

ADDITIONAL INFORMATION
Here is the output from top:

PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND 
 1389 paul      20     5718600 299452 186100 R 100.3   2.5  13:56.63
/usr/bin/kontact  

The computer I am using is a modern HP Envy and is powerful enough to run much
more resource-hungry software without getting too hot.

It is not Akonadi, since stopping, starting, fscking and vacuuming do not have
any observable effects. It is not any of the other Kontact components: I have
started them all separately and none has the same effect as Kmail.

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