[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=113468

Alex Thurgood  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |DUPLICATE

--- Comment #10 from Alex Thurgood  ---


*** This bug has been marked as a duplicate of bug 106958 ***

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=113468

--- Comment #9 from Jon R Kibler  ---
(In reply to Jon R Kibler from comment #8)
> Reading through all these bugs and commenting has left me with a thought:
> Sierra -- at least from the user's perspective -- changed the way the O/S
> handles spellchecking.
> 
> I do have spelling and grammar checking turned on. I'm wondering if that
> could be at least part of this problem -- especially the freezes when
> typing: Is spelling checking trying to occur and there is simply a delay in
> looking up some word?
> 
> I am going to turn both off and will report back in a couple days.

OOPS! I meant this comment for  bug 113467. But, will leave it here.

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=113468

--- Comment #8 from Jon R Kibler  ---
Reading through all these bugs and commenting has left me with a thought:
Sierra -- at least from the user's perspective -- changed the way the O/S
handles spellchecking.

I do have spelling and grammar checking turned on. I'm wondering if that could
be at least part of this problem -- especially the freezes when typing: Is
spelling checking trying to occur and there is simply a delay in looking up
some word?

I am going to turn both off and will report back in a couple days.

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

--- Comment #7 from Jon R Kibler  ---
I was asked to see if I saw any of the same issues as other bugs posted. Here
are my results:

Bug 107113 -- agree performance at cold start is MUCH slower than OO. I have
also noticed that the longer LO runs, the slower it seems to become.

Bug 106958 -- I am also having document freezes while typing. Clicking icons
does not seem to help.

Bug 106154 -- I occasionally see this behavior, but not as frequently as this
bug report. However, one place that it is consistently slow is in replacing
misspellings: You select the replacement word on the right-click menu, and it
hangs anywhere from 2 to >5 seconds before replacing the word and closing the
menu.

Bug 104802 -- I am not seeing this particular behavior, but I do see it
sometimes freeze when clicking in a new cell and start typing. Under that
circumstance, I also notice that the typing lags showing up in the formula edit
box on the tool bar, and the full text of typing never shows up until you
select a different cell then go back to that cell... but I think the formula
bar echo is probably a different issue.

Bug 103571 -- I am seeing some of this, which I describe in bug 113467 which I
also have open.

Bug 103252 -- If LO has been previously running, and you quit it, then restart,
from the time that LibreOffice appears in the menu bar and StartCenter appears
averages 6 seconds. However, if you start LO after a clean login (not switch
user) it can take over 20 seconds to appear.

Bug 87013 -- Reading this, my thought is this is not a LO bug. I have several
NAS drives, and if they are mounted but have gone to sleep, they slow ANY
application down when trying to do disk access that one would think is limited
to the internal HDD, but for some reason macOS also waits to spin up the NAS
drives before responding. This is something that got A LOT worse with Sierra.
My thought is that with LO needs some shared library that is not loaded in
memory, it hangs until all the NAS drives are spun up. That said, I have tested
my LO problem with all NAS unmounted and that does not seem to solve the
problem.

Bug 113104 -- Have not seen this issue.

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

--- Comment #6 from Alex Thurgood  ---
@Jon : to collect debug information you need a debug build. As far as I know,
none are being provided at the current time in the daily builds made available
for LibreOffice on OSX.

The only other way to obtain useful debug information is to build LO yourself
from source.

I suppose theoretically, you could try analysing a normal build in
Instruments.app (part of the XCode package) with a time profile trace or a core
profile trace, although without symbols and debug code, the results are
probably going to be a bit limited.

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

--- Comment #5 from Alex Thurgood  ---
@Jon : seems to me that at least some of what you describe here, and equally in
bug 113467, has already been referenced in the See Also bugs I've added to this
report.

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

Alex Thurgood  changed:

   What|Removed |Added

   See Also||https://bugs.documentfounda
   ||tion.org/show_bug.cgi?id=10
   ||7113

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

Alex Thurgood  changed:

   What|Removed |Added

   See Also||https://bugs.documentfounda
   ||tion.org/show_bug.cgi?id=10
   ||6958

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

Alex Thurgood  changed:

   What|Removed |Added

   See Also||https://bugs.documentfounda
   ||tion.org/show_bug.cgi?id=10
   ||6154

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

Alex Thurgood  changed:

   What|Removed |Added

   See Also||https://bugs.documentfounda
   ||tion.org/show_bug.cgi?id=10
   ||4802

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

Alex Thurgood  changed:

   What|Removed |Added

   See Also||https://bugs.documentfounda
   ||tion.org/show_bug.cgi?id=10
   ||3571

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

Alex Thurgood  changed:

   What|Removed |Added

   See Also||https://bugs.documentfounda
   ||tion.org/show_bug.cgi?id=10
   ||3252

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

Alex Thurgood  changed:

   What|Removed |Added

   See Also||https://bugs.documentfounda
   ||tion.org/show_bug.cgi?id=87
   ||013

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

Alex Thurgood  changed:

   What|Removed |Added

   See Also||https://bugs.documentfounda
   ||tion.org/show_bug.cgi?id=11
   ||3104

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

Alex Thurgood  changed:

   What|Removed |Added

   Keywords||perf

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

Alex Thurgood  changed:

   What|Removed |Added

   Hardware|IA64 (Itanium)  |x86-64 (AMD64)

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

--- Comment #4 from Jon R Kibler  ---
(In reply to Jon R Kibler from comment #3)
> The problem seems to occur at random -- nothing in common between incidents. 
> 
> If you can please provide some instructions as to how to collect data
> regarding what threads (or whatever) are running and/or any other debug
> information you require, I would be glad to do that the next time the
> problem occurs.
> 
> I would need the info for a Mac.
> 
> Thanks!

I just read the other two bugs which were proposed as possibly related and I
can probably add some useful information.

I do have Dock in Auto-Hide mode.

The problem does occur after sleep, but not immediately, and the space in which
LO is running is not visible (is that logically equivalent to minimizing,
although it is not minimized to the Dock?) and has not been returned to after
sleep.

The hardware specs are:
  Model Name:   MacBook Pro
  Model Identifier: MacBookPro11,3
  Processor Name:   Intel Core i7
  Processor Speed:  2.8 GHz
  Number of Processors: 1
  Total Number of Cores:4
  L2 Cache (per Core):  256 KB
  L3 Cache: 6 MB
  Memory:   16 GB
  Boot ROM Version: MBP112.0138.B40
  SMC Version (system): 2.19f12

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

Jon R Kibler  changed:

   What|Removed |Added

 Status|NEEDINFO|UNCONFIRMED
 Ever confirmed|1   |0

--- Comment #3 from Jon R Kibler  ---
The problem seems to occur at random -- nothing in common between incidents. 

If you can please provide some instructions as to how to collect data regarding
what threads (or whatever) are running and/or any other debug information you
require, I would be glad to do that the next time the problem occurs.

I would need the info for a Mac.

Thanks!

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

--- Comment #2 from Telesto  ---
It could be bug 103571 (or bug 103126)

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[Libreoffice-bugs] [Bug 113468] Sudden High CPU Usage by "Idle" LO

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https://bugs.documentfoundation.org/show_bug.cgi?id=113468

Xisco Faulí  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEEDINFO
 CC||xiscofa...@libreoffice.org
 Ever confirmed|0   |1

--- Comment #1 from Xisco Faulí  ---
Thank you for reporting the bug.
Unfortunately without clear steps to reproduce it, we cannot track down the
origin of the problem.
Please provide a clearer set of step-by-step instructions on how to reproduce
the problem.
I have set the bug's status to 'NEEDINFO'. Please change it back to
'UNCONFIRMED' once the steps are provided

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