[Libreoffice-bugs] [Bug 129900] Exiting Writer's Print Preview mode is slow in long documents

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=129900

--- Comment #3 from Max Barry <max at maxbarry.com> ---
re: 'NEEDINFO'

I restarted in Safe Mode and confirmed the problem still exists.

I created a 1,600 page document (600k words / 3.3M characters) and observed
that it took approximately 2 seconds to enter Print Preview and about 4.5
seconds to exit Print Preview. In both cases, CPU usage immediately rose from
idle to 100% and the app was unresponsive for the duration.

I also created a 15,000 page document (11M words / 58M characters comprised of
repeating "The quick brown fox jumps over the lazy dog."), which did the same
thing, taking 16 seconds to enter Print Preview and 25 seconds to exit.

Version: 6.3.4.2
Build ID: 1:6.3.4-0ubuntu0.19.10.1
CPU threads: 4; OS: Linux 5.3; UI render: default; VCL: gtk3; 
Locale: en-AU (en_AU.UTF-8); UI-Language: en-US
Calc: threaded

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