The product system one of our customers has does not have .Net 4 installed so cannot use NmpCore and only can use the create dump option of a running process on the server. We are trying to get .Net 4 installed to see if NmpCore will improve on this but there are issues with change controls in place at our clients that prevents changes to their production environments with out long drawn out processes.
I have never used the import memory dump feature of the memory profiler so maybe I am doing something wrong, or maybe what is possible with a raw mini dump is limited and it is what it is. Please advise, thanks.
To use the "Investigate memory leak" guide, the profiler requires multiple snapshots, and instance movement must be tracked between the snapshots. Even though you can create multiple snapshots by importing multiple memory dumps, there is no instance tracking between the snapshots. A profiler only analyzes the memory at a single point in time when you import a memory dump and has no way of identifying which instances are the same between the memory dumps. The Full instance tracking setting has no effect on memory dump imports.
You can still use NmpCore at the customers system, but you should try to start the application using NmpCore and not attach to the process. Attaching to a .NET 2.0 process will just give you the same information as a memory dump import.
SciTech Software AB
I will have to try to get a full version of the product installed in the environment to be able to attached and create the snapshots we need. Thanks for you help and explaining this to me.
Analyzing memory leaks using only memory dumps is a bit more difficult, mainly because you will not get information about specific new and removed instances, only delta information, and no allocation call stacks. The steps performed by the Investigate memory leak guide is similar to the How to... Find memory leaks section in the documentation. You can follow those instructions, but you will be missing some information.
SciTech Software AB
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