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Check the event log for clues.
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<div>
After IIS Peak I have a lot of entries like that. The is one user that has the most of them:<br />
<br />
MSExchangeSyncAppPool<br />
pid (8984)<br />
REQUEST: fd00000080004a8a &nbsp; &nbsp; VERB: POST &nbsp; &nbsp; URL: /Microsoft-Server-ActiveSy<wbr />nc?User=us<wbr />er&amp;DeviceI<wbr />d=ApplL51S<wbr />DJHH&amp;Devic<wbr />eType=iPad<wbr />&amp;Cmd=Sync<br />
ELAPSED: 771 &nbsp; &nbsp; MOD: ManagedPipelineHandler &nbsp; &nbsp; TIME-IN-MOD: 771<br />
PIPE-STATE: ExecuteRequestHandler &nbsp; &nbsp; TIME-IN-STATE: 771<br />
CLIENT-IP: 174.xxx.xxx.xxx &nbsp; &nbsp; PORT: 443
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After IIS Peak I have a lot of entries like that. The is one user that has the most of them:

MSExchangeSyncAppPool
pid (8984)
REQUEST: fd00000080004a8a     VERB: POST     URL: /Microsoft-Server-ActiveSync?User=user&DeviceId=ApplL51SDJHH&DeviceType=iPad&Cmd=Sync
ELAPSED: 771     MOD: ManagedPipelineHandler     TIME-IN-MOD: 771
PIPE-STATE: ExecuteRequestHandler     TIME-IN-STATE: 771
CLIENT-IP: 174.xxx.xxx.xxx     PORT: 443

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Found that one user was running up the ex server after running IIS PEAK. thanks
</div>


Found that one user was running up the ex server after running IIS PEAK. thanks

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<div class="content wysiwyg-content">
Hi All,<br />
<br />
w3wp.exe process is running at about a 100% CPU at all times. Any thoughts?<br />
<br />
Running Exchange 2010 SP1 Verison 14.01.0218.013 on Windows Server 2008 R2 (VM 6 cores, 16GB RAM)
</div>
</div>


Hi All,

w3wp.exe process is running at about a 100% CPU at all times. Any thoughts?

Running Exchange 2010 SP1 Verison 14.01.0218.013 on Windows Server 2008 R2 (VM 6 cores, 16GB RAM)

w3wp.exe utilizes 100% CPU at all times on Exchange 2010 SP1

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.