ANTS Memory Profiler - 6.0
Learning ANTS Memory Profiler - 6.0
Understanding unmanaged memory leaks
Managed .NET code may interoperate with unmanaged code when some COM objects or C-style DLLs are invoked.
Leaks caused by unmanaged objects are more complex to identify, because ANTS Memory Profiler cannot provide detailed information about unmanaged usage. You can compare the different performance counters provided by ANTS Memory Profiler, however, to give some ideas about where to look for these leaks.
The main indication of an unmanaged memory leak is when the number of private bytes (the amount of real and paged memory requested by the program) increases while the number of bytes in the .NET heap does not grow as quickly. You may be able to find the source of the problem by looking for .NET objects whose instance count is increasing, or by looking for objects on the finalizer queue that have not been disposed.
Further information
- Eric Smith has written a blog post describing his approach to finding an unmanaged leak
http://esmithy.net/2007/06/25/finding-unmanaged-memory-leaks/
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Understanding memory problemsANTS Memory Profiler
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