https://bugs.documentfoundation.org/show_bug.cgi?id=105590
Bug ID: 105590
Summary: Software rendering, performance issues when a file is
opened causing it to be "laggy"
Product: LibreOffice
Version: 5.2.5.1 release
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Draw
Assignee: libreoffice-bugs@lists.freedesktop.org
Reporter: kmarsc...@ellemsoftware.com
Description:
Once I open a file software rendering is forced, and the response of
LibreOffice draw is "laggy". HOWEVER when I open a fresh-new blank document
(thus avoiding loading a file), it is smooth as butter and no performance
decline is noticed.
I use the term software rendering because when I start moving around geometry
in Draw on an opened file, a CPU core goes up to 100%. Likewise as stated
above, if I open Draw without loading a file and start manipulating geometry,
the CPU core only goes up to 30%. This makes it evident that the latter is
using hardware rendering to paint the screen.
Steps to Reproduce:
1. Open Draw (do not load file, start with new blank document)
2. Add 6-10 rectangles to the page.
3. Ctrl-A the rectangles and start "shaking them" about the page. Note the CPU
usage.
4. Save this document to desktop. Close Draw. Open Draw by double-clicking the
document.
5. Preform the same "shaking" to the geometry and notice a slower update rate
aswell substantial CPU usage compared to before.
Actual Results:
After saved and reopened, libreoffice did not use rendering.
Expected Results:
I expected that sense LibreOffice to use hardware render both before and after
the save.
Reproducible: Always
User Profile Reset: Yes
Additional Info:
Linux Mint: 18 64-bit
Cinnamon: 3.0.7
Kernal: 4.4.0-59-generic
Processor: AMD FX 8350 8-Core
Memory: 11.6GB
Graphics Card: R7 265 Driver: radeon
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like
Gecko) Ubuntu Chromium/55.0.2883.87 Chrome/55.0.2883.87 Safari/537.36
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