200% CPU usage after sip registration

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What steps will reproduce the problem?
1. When i got 200 OK then app instantly start using 200% CPU
2. I am seeing this issue in xcode 6.
3. More CPU consumption cause device heating.

What is the expected output? What do you see instead?


What version of the product or source code revision are you using? On what
operating system?
I am using r_267 and on iOS 7 and iOS 8.


Please provide any additional information below.

Original issue reported on code.google.com by nazrul.i...@gmail.com on 21 Nov 2014 at 1:37