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Incomplete call stack?

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I am trying to put at work (for the first time) VTune Amplifier XE 2016 on a Linux C++ code.
I am facing with the following issue:
I have a class with methods ‘detectElements’ and ‘detectAxisElements’.
‘detectElements’ is calling ‘detectAxisElements’ twice with different parameters (there is no other call to ‘detectAxisElements’ in my code).

Looking at VTune’s result, I can see in the Caller/Callee tab:
For “CPU Time: Total”
‘detectElements             0.1%
‘detectAxisElements’     27.1%

For “CPU Time: Self”
‘detectElements’            0.0%
‘detectAxisElements’     11.1%

‘detectAxisElements’ does not seem to be recognized as being called from ‘detectElements’.

Looking at the “Callees pane” for ‘detectElements’, I can see several other methods and operators but nothing about 'detectAxisElements’.

Any hint to let me understand this point is welcome.


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