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http://www.openoffice.org/issues/show_bug.cgi?id=86363
Issue #|86363
Summary|Presentation causes excessive and continued processor
|load
Component|Presentation
Version|OOo 2.3
Platform|All
URL|
OS/Version|Linux
Status|UNCONFIRMED
Status whiteboard|
Keywords|
Resolution|
Issue type|DEFECT
Priority|P2
Subcomponent|code
Assigned to|cgu
Reported by|ftack
------- Additional comments from [EMAIL PROTECTED] Fri Feb 22 16:48:33 +0000
2008 -------
System: Ubuntu 7.10 (Gutsy) with OOo of distribution (2.3.0; openoffice-org
core 1:2.3.0-1ubuntu5.3, Tue nov 27)
When working with a presentation, I observed that Ooo causes in increasing load
on the processor, up to the point that the system becomes slow and bad
responding. I performed a test where I monitored processor usage using Ubuntu
system monitor, which can be easily reproduced using the attached presentation.
The test shows first of all the very high processor use while running the
presentation (which might be normal). However, after running the presentation,
the processor use while idle (i.e. doing nothing) is increased, and it increases
each time after a presentation up to a point where the baseline processor usage
is over 80%, the ventilator is working at full speed, presentations become
extremely jerky and the system as a whole becomes unresponsive.
I attached the processor usage graph as high_processor.png. It clearly shows the
increase in "baseline" in processor use, that remains high even after leaving
the system idle for half a minute (e.g. after the ninth presentation on the
graph and at the end). The processor usage falls back only after exiting the
word processor. Experience (not included on the graph) revealed that the
processor usage continued even after leaving the system for half an hour!
This test can be reproduced using the attached high_processor.odp, which is just
a sample presentation with 5 slides, 10 animated objects in total, and automatic
slide transitions without effect. To run the test as I did it:
(1) Start "System monitor". I have set the update interval to 5 seconds.
(2) Start OOo and load high_processor.odp
(3) Wait fifteen seconds
(4) Press F5 to run the presentation. When it is finished, press Escape to
close it
(5) Wait 10-12 seconds then repeat the presentation (press F5) (4). Do this a
couple of times
Some system info:
$ cat cpuinfo
vendor_id : GenuineIntel
cpu family : 6
model : 13
model name : Intel(R) Pentium(R) M processor 2.00GHz
stepping : 8
cpu MHz : 800.000
cache size : 2048 KB
$ free
total used free shared buffers cached
Mem: 1035536 718368 317168 0 35880 370728
-/+ buffers/cache: 311760 723776
Swap: 3028212 0 3028212
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