Issue 27949 - High CPU load while editing sxc file with longer text in cells (5k in one cell)
Summary: High CPU load while editing sxc file with longer text in cells (5k in one cell)
Alias: None
Product: Calc
Classification: Application
Component: code (show other issues)
Version: OOo 1.1.1
Hardware: PC All
: P3 Trivial (vote)
Target Milestone: ---
Assignee: AOO issues mailing list
QA Contact:
Depends on:
Reported: 2004-04-18 21:15 UTC by sisi1
Modified: 2017-05-20 11:13 UTC (History)
1 user (show)

See Also:
Issue Type: DEFECT
Latest Confirmation in: ---
Developer Difficulty: ---

soubor Calcu s příkladem a soubor Writeru s zatížením CPU (55.35 KB, application/octet-stream)
2004-04-18 21:19 UTC, sisi1
no flags Details
The contents of editing line (30.52 KB, image/png)
2004-04-19 22:29 UTC, dan
no flags Details

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Description sisi1 2004-04-18 21:15:10 UTC
V případě, že je vloženo do jedné nebo více buněk Calcu velké množství
zalamovaného textu (4-15 kB)dochází k viditelnému zpomalení systému, kvůli
vytížení CPU. Při pohybu kurzorovými šipkami cca. 70-90%. Při pohybu myší nad
buňkou s textem je vytížení 90-100% až do zastavení pohybu. Stejné operace v
Excelu zatěžují CPU cca. 4-12%.
If in Calc there is entered into one or more cells a lot of text (with LF)
aprox. 4-15kB then reaction of system is visibly decreased. It is caused by
overloading CPU. When cursor keys are used for movement through these cells, the
CPU is loaded   from 70 to 90%. When mouse pointer is moved across cell with
that text the CPU is loaded 90-100%. The same actions in Excel load CPU from 4
to 12%.
Comment 1 sisi1 2004-04-18 21:19:26 UTC
Created attachment 14607 [details]
soubor Calcu s příkladem a soubor Writeru s zatížením CPU
Comment 2 pavel 2004-04-19 21:42:15 UTC
Dan, please investigate (if you have a minute).
Comment 3 dan 2004-04-19 22:28:02 UTC
I can confirm it, the same on linux, in versions 1.1.0 and 1.1.1.

On my system is the cpu load not too high, but there are unusual delays in
displaying the contents of spreadsheet in in page scrolling.

There are also other problem related to this, the text in editing line is
improper formated and displayed. See attachment.
Comment 4 dan 2004-04-19 22:29:13 UTC
Created attachment 14643 [details]
The contents of editing line
Comment 5 dan 2004-04-19 22:31:41 UTC
Probably we shouldn't try to format text, which is not shown.
Comment 6 pavel 2004-04-20 18:59:30 UTC
Change component.
Comment 7 pavel 2004-04-20 19:00:14 UTC
Reassign issue to the owner of code subcomponent for investigation.
Comment 8 frank 2004-04-21 10:03:21 UTC
Hi Niklas,

please have a look at this Issue.

Comment 9 Marcus 2017-05-20 11:13:40 UTC
Reset assigne to the default "".