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Outlook continuosly uses 7 - 10% CPU, writes at 1.2 mb/s and creates logs oteledata_thread_x

Posted on 2014-09-27
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Last Modified: 2016-06-03
I have noticed Outlook continuosly uses 5 - 10% CPU. Chekcing the performance data I can see it is writing a number of log files called oteledata_thread_X.etl - where thread = thread number of Outlook and X is am incremental number. I have tired running in asafe miode, with all add ins turned off, I have also made sure Outloook logging is turned off. When Outlook it closed, it takes a few minutes before the process finally shuts down , during which time it contnues to write the oteledata threads.
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Question by:DaveBorg
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Expert Comment

by:David Johnson, CD, MVP
ID: 40347645
Is there a reason why you enabled logging?


On the File tab, select Options.
In the Outlook Options dialog box, select Advanced.
Scroll down the list of settings and then un-select the Enable troubleshooting logging (requires restarting Outlook) option.

Registry
Key: HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Options\Mail
DWORD: EnableETWLogging
Value: 0

Path: HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\15.0\Outlook\Options\Shutdown
DWORD: FastShutdownBehavior
Value: 0

http://bit.ly/1rlbVIy
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Author Comment

by:DaveBorg
ID: 40348141
Thanks for your reply. As mentioned in the post, Outlook logging is already turned off however the registry keys you mentioned did not exist so I have created those. This has not helped. For your reference I have uploaded a resource monitor screen shot showing the problem.
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Author Comment

by:DaveBorg
ID: 40348177
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Author Comment

by:DaveBorg
ID: 40348485
I have found the problem. I recently added a gmail (imap) account as a secondary account to my Exchange account within Outlook. As soon as I deleted the imap account the CPU usage dropped to normal and the oteledata threads and disk access ended. Not sure why this would cause those issues. If someone has an accurate answer to that, they can have the points
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Author Comment

by:DaveBorg
ID: 40348637
Spoke too soon. Outlook has gone back to using 5 -8% CPU and the oteledata files are constantly writing to the disk.
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Accepted Solution

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DaveBorg earned 0 total points
ID: 40351205
I have recreated the Outlook profile and the CPU and Log writing has stopped. Would still be interested in anyone explaining the cause as I would like to know the root cause - especially the writing of the otledata logs when logging was turned off.
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