Issue with Vsperfmon in 64 bit

Question

I am trying to get the coverage of 32 bit binaries in a 64 bit machine. The application under test is also running in 32 bit mode. I am using the 32 bit tools set for instrumenting and collecting code coverage data (vsinstr, vsperfmon and vsperfcmd) as mentioned here. But I am not getting any coverage data and in the event viewer I see the below message being logged continuously : "Profile monitor does not appear to be running".

 

The same works fine on a 32 bit machine. Am I missing something here ?

Answer 1

Is your target process running as a service? If so and you aren't already you'll need to add the '/cs' for crosssession and potentially the '/user' switches when starting vsperfmon (or vsperfcmd) to allow the service with the instrumented binary to communicate with the monitor.

In Vista and later operating systems services are run in a seperate sesssion to isolate them from the currently-logged on user (as a security measure) and the monitor needs to be given explicit permission to set everything up to communicate across sessions.

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