Bug 104962 - Scaling drawing objects is quite CPU intensive compared to Word
Summary: Scaling drawing objects is quite CPU intensive compared to Word
Status: RESOLVED NOTABUG
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
Version:
(earliest affected)
Inherited From OOo
Hardware: All All
: low minor
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-12-28 19:27 UTC by Telesto
Modified: 2017-01-07 16:39 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:

Attachments
Example file (13.40 KB, application/vnd.oasis.opendocument.text)
2016-12-28 19:28 UTC, Telesto 		Details
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Description Telesto 2016-12-28 19:27:37 UTC 
Description:
Scaling a simple SVG is quite CPU intensive compared to Word

Steps to Reproduce:
1.Open attached file
2.Resize the grouped SVG image by clicking at a corner and resize
3.Monitor CPU usage 

or (a bit less intense)
1. Open Writer
2. Add a shape (smiley)
3. Resize the shape

Actual Results:  
CPU consumption between 18-23%

Expected Results:
Around 5% like MS Word


Reproducible: Always

User Profile Reset: No

Additional Info:
Found in:
Version: 5.4.0.0.alpha0+
Build ID: d0288a482a3dc0f50f535565e4c66a95bb140942
CPU Threads: 4; OS Version: Windows 6.19; UI Render: default; 
TinderBox: Win-x86@42, Branch:master, Time: 2016-12-26_23:25:18
Locale: nl-NL (nl_NL); Calc: CL

and in
LibreOffice 3.3.0 
OOO330m19 (Build:6)
tag libreoffice-3.3.0.4



User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0
Comment 1 Telesto 2016-12-28 19:28:09 UTC 
Created attachment 129988 [details]
Example file
Comment 2 Buovjaga 2016-12-28 19:56:06 UTC 
While scaling back and forth, one of my CPUs goes even over 60%, hovering at 40-50%.

Essentially the same in 3.3

Arch Linux 64-bit, KDE Plasma 5
Version: 5.4.0.0.alpha0+
Build ID: 6c2b8cb5b136b63b3ea295528b845d37b5dd9000
CPU Threads: 8; OS Version: Linux 4.8; UI Render: default; VCL: kde4; 
Locale: fi-FI (fi_FI.UTF-8); Calc: group
Built on December 28th 2016

Arch Linux 64-bit
LibreOffice 3.3.0 
OOO330m19 (Build:6)
tag libreoffice-3.3.0.4
Comment 3 Regina Henschel 2016-12-28 21:01:35 UTC 
The attached file does not contain any SVG image.

Resizing the drawing object works quickly, without any unnormal CPU work increasing.

Opening the attached file in Word 2010 and resizing there, uses the same processing power as LibreOffice.

I use Version: 5.4.0.0.alpha0+
Build ID: 690cf2a5ac87d3d05c45a86944e7f6b0adf12cf2
CPU Threads: 4; OS Version: Windows 6.1; UI Render: default; 
TinderBox: Win-x86@62-merge-TDF, Branch:MASTER, Time: 2016-12-15_18:59:20
Locale: de-DE (de_DE); Calc: group 

Which version of Word can handle SVG images?
Comment 4 Telesto 2016-12-28 21:32:16 UTC 
@Regina Henschel 
I should say drawing objects, instead of svg. Resizing is a drawing object does work smooth. But CPU work is quite intense, while scaling back and forth.
Comment 5 Telesto 2017-01-07 16:39:59 UTC 
The issue is similar to bug 105016. So closing this one as NAB.