Bug 108937

Summary: Copy Style Tool makes CPU go to 100 %
Product: LibreOffice Reporter: DeepFlight5 <deepflight5>
Component: WriterAssignee: Not Assigned <libreoffice-bugs>
Status: RESOLVED WORKSFORME    
Severity: major CC: aron.budea, raal, telesto
Priority: high Keywords: perf, regression
Version: 5.1.0.3 release   
Hardware: All   
OS: All   
See Also: https://bugs.documentfoundation.org/show_bug.cgi?id=100009
Whiteboard:
Crash report or crash signature: Regression By:
Bug Depends on:    
Bug Blocks: 114912    

Description DeepFlight5 2017-07-04 07:46:34 UTC 
When double clicking the "copy style tool" (the paint brush icon) one can add styles to different texts in one step. So far so good. But when this tool is selected the computer CPU goes up to 100 %. I selected this tool, did some work, did not deselect it, because I wanted to continue the style changes, and went for a short brake. When I came back the fans were running loudly and the CPU was at 100 %. The moment I deselected the tool, the CPU went down to 5 %.
Comment 1 Telesto 2017-07-04 13:41:16 UTC 
Confirming with:
Version: 6.0.0.0.alpha0+
Build ID: cac5c9f6081590b0548d3116bc4cd4a2509ec576
CPU threads: 4; OS: Windows 6.19; UI render: default; 
TinderBox: Win-x86@42, Branch:master, Time: 2017-07-01_00:41:48
Locale: nl-NL (nl_NL); Calc: CL

A way to reproduce
1. Open a writer document
2. Type some demo text
3. Select the text & click Clone Formatting
4. Change the font of the text
Comment 2 Alex Thurgood 2017-07-05 12:25:56 UTC 
Also confirming on

Version: 5.3.4.2
Build ID: f82d347ccc0be322489bf7da61d7e4ad13fe2ff3
Threads CPU : 4; Version de l'OS :Mac OS X 10.12.5; UI Render : par défaut; Moteur de mise en page : nouveau; 
Locale : fr-FR (fr_FR.UTF-8); Calc: group
Comment 3 Telesto 2017-07-05 12:55:15 UTC 
Version: 5.1.0.3
Build ID: 5e3e00a007d9b3b6efb6797a8b8e57b51ab1f737
CPU Threads: 4; OS Version: Windows 6.2; UI Render: default; 
Locale: en-US (nl_NL)

but not in
Version: 5.0.6.3
Build ID: 490fc03b25318460cfc54456516ea2519c11d1aa
Locale: en-US (nl_NL)

has some similarity with bug 100009
Comment 4 Alex Thurgood 2017-07-05 16:29:20 UTC 
(In reply to Telesto from comment #3)


> has some similarity with bug 100009

Indeed. Let's add that as a See Also
Comment 5 Telesto 2017-07-21 09:50:38 UTC 
No repro with:
Version: 6.0.0.0.alpha0+
Build ID: a9588baca8137f51e2ca72e40b1f448b0e1885d1
CPU threads: 4; OS: Windows 6.19; UI render: default; 
TinderBox: Win-x86@42, Branch:master, Time: 2017-07-21_02:58:26
Locale: nl-NL (nl_NL); Calc: CL
Comment 6 raal 2018-01-05 15:04:51 UTC 
no repro with Version: 6.0.0.0.alpha1+
Build ID: 80af51be1aa85733b9c0b696a93edd8c6520811c; Windows
and Version: 6.1.0.0.alpha0+
Build ID: 88f6ffeb9e0c0b942c2b0bc9d60af7bb7a6caaf8
CPU threads: 4; OS: Linux 4.4; UI render: default; VCL: gtk3; 

Closing as worksforme.
@DeepFlight5: Seems to be fixed with dev version. Please could you test it with dev version?  You can download it here: http://dev-builds.libreoffice.org/daily/master/