[Libreoffice-bugs] [Bug 124346] New: High CPU usage when large document open

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=124346

            Bug ID: 124346
           Summary: High CPU usage when large document open
           Product: LibreOffice
           Version: 6.2.2.2 release
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Writer
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: hamilton.tim at gmail.com

Description:
CPU usage spikes to 110-130% (across 4 cores) when a large document (~260
pages, mainly text) is opened.

Steps to reproduce:
Open large document
Observe CPU spike and fan spin up
Close file
Observe CPU drop and fan spin down

Expected result:
Small spike in CPU usage while opening, overall slight increase in CPU usage,
total to remain >10%

Reproducible:
Always

User Profile Reset: 
No, relatively new install upgraded from 6.1.x.

Operating System
Ubuntu 18.10

Install method
Ubuntu LibreOffice PPA
https://launchpad.net/~libreoffice

Additional Info:
Version: 6.2.2.2
Build ID: 1:6.2.2-0ubuntu0.18.10.1~lo1
CPU threads: 4; OS: Linux 4.18; UI render: default; VCL: gtk3; 
Locale: en-AU (en_AU.UTF-8); UI-Language: en-US
Calc: threaded

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