Getting details on application RAM usage

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According to process explorer / task manager my application has a private working set size of around 190MB even while not performing a specific task, which is way more than I would expect it to need. Using FastMM I have validated that none of this is an actual memory leak in a traditional sense.

I have also read the related discussion going on here, which suggests using FastMM's LogMemoryManagerStateToFile();. However the output generated states "21299K Allocated, 49086K Overhead", which combined (70MB) is way less than the task manager suggests.

Is there any way I can find out what causes the huge differences, might 190MB even be an expectable value for an application with ~15 forms? Also, is having 70% overhead "bad", any way of reducing that number?

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Lieven Keersmaekers On BEST ANSWER

You can use VMMap from Sysinternals to get a complete overview of the virtual memory addres space your proces is using. This should allow you to work out the difference you are seeing between taks manager and FastMM.

I doubt that FastMM reports or even can report sections like Mapped File, Shareable, Page Table while those sections do occupy Private WS.

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Erik Virtel On

DDDebug can give you insights about memory allocation by objects in your app. You can monitor changes live.

Test the trial version or checkout the introductory video on the website.