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Exchange 2007 sp3 high w3wp cpu

Hello everyone  <
exchange 2007 sp3 .
in the past few days my w3wp is on 100% cpu ...

it happend before and i used exmon to see the problem and always saw the CPU TIME / OPERTATION and such to see which user is causing the problem

this time (  i think its ios5 ) releated the exmon wont help and i see only normal usage

which more tools can i use ?
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eli_migdal
Asked:
eli_migdal
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1 Solution
 
ExchangePanditCommented:
Hi,

Few questions:

1. How many mobile users do we have?
2. Whats the user experience when the W3WP process is hitting max?
3. Can you post ExBPA report for us?
4. Why do you think it is related to IOS5?
5. Anything in IIS or event logs? can you post IIS logs when W3WP is using high memory?

For a starter, you can use poolmon: http://support.microsoft.com/kb/177415?

Regards
EP
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eli_migdalAuthor Commented:
i am trying to use the logpasrser but i get empty view - like there is not results
how can i use it correctly ?

regarding the questions :
1. 300 +/-
2. activesync is working move slow
4. its started after ios5 updates

i dont see any problems in the IIS logs.. thats the issue :) .. and also the exmon doesnt help
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ExchangePanditCommented:
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eli_migdalAuthor Commented:
I see that :
Issue 2.8 - High CPU usage when you synchronize a mobile device to an Exchange Server CAS

This issue is currently under investigation by the mobile device manufacturer.

mmm... shell i wait for a solution ?
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ExchangePanditCommented:
check out the workaround given here:

http://support.microsoft.com/kb/2711053/en-us
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eli_migdalAuthor Commented:
what other tools expect EXMON ( which works most of the times ) i can use to see which user is causing the issue ?
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eli_migdalAuthor Commented:
i trierd the workaround , i cant get the log parser to show any real info , i cant identify the problematic user
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eli_migdalAuthor Commented:
i run the log parser on my C:\inetpub\logs\LogFiles\W3SVC1 and get no info at all , no error just no info.

what am i doing wrong ?
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ExchangePanditCommented:
Can you please post one of the latest IIS log files if you dont mind.

Cheers
EP
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eli_migdalAuthor Commented:
here is an example ( after changing IP, server , domain for security reasons ) , a very small portion.
example-of-iis.txt
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ExchangePanditCommented:
Nothing much in it to be honest, though here is the link on how to use Log Parser: http://blogs.technet.com/b/exchange/archive/2012/03/07/introducing-log-parser-studio.aspx
please read if you have not already done so.

Also if you know this happened after ISO5 updates, do we have an option to disable activesync for those users OR do we have too many users and its not an option? We just need to see if the server behaves properly or not after those devices are NOT syncing which will prove your point.

Regards
AP
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eli_migdalAuthor Commented:
I opened a case in ms , I will update
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ExchangePanditCommented:
Cool...let us know
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eli_migdalAuthor Commented:
they did solve it and let me know which user was it , but only after the DUMPED the proccess info , it was caused by an old IPHONE version IOS which was also cracked , so keep all your iphones/ apple products updated with original non cracked IOS
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eli_migdalAuthor Commented:
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