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Application consumes close to 100% of CPU, how to profile and determine the cause

Hello,

I recently wrote an application that is used for testing units in a
burn-in chamber. It uses two external library that require the use of
P\Invoke in order to work with them. There is a primary thread and a
secondary polling thread. Every once in a while the process will
consume close to 100% of the CPU, but I am unclear why. I am wondering
how would I go about determine the cause of the problem? What sort of
tools or instrumentation should I use in order to determine what part
of the code is causing the problem. Any help is greatly appreciated.

I know in the hardware world I could implement a watchdog to restart
the sytem, would something like that be useful? I would have to keep
track of the system thus is would run slower and consume more
resources, but I might be able to recover when the process has
problems???

Mark

Nov 17 '05
11 2134
Ollie,

Should I move the question over to that newsgroup? I didn't think it
was a performance issue since I must have a bug in my software,
somewhere, which is causing my problems? If I move it over to the other
newsgroup will people consider is cross posting? I don't want to make
people upset as I do need help.

Mark

Nov 17 '05 #11
Hello all, (yet again)

I recently noticed that I am able to cause the application to
eventually consume close to 100% of the CPU when I run the Released
version of the application. I have been unable so far to produce the
same behavior when executing the Debug version of the application.
Since I had never seen this problem while debugging the application. It
was just recently that I was running the application in a test
environment as a stand-a-lone application and outside visual studio.
Providing this problem only arises when running the release version, is
there a new direction I should focus my efforts in solving the problem?
Thanks

Mark

Nov 17 '05 #12

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