Difference in Unmanaged by module and total Unmanaged

Memory profiling for .NET developers

Moderator: dom.smith

Postby dom.smith » Mon Oct 07, 2013 2:01 pm

Hi Tomasz,

Thanks for your question. Yes, the Unmanaged value in the snapshot and the breakdown by module should be the same.

There was a rare bug in the original build of ANTS Memory Profiler 8 ( which exhibits this behavior, and we think this is the problem you are having.

I've just released a new build of ANTS Memory Profiler 8 (, which should correct this bug. Can you try the new build and let me know if you still see the same problem, please?

You should be prompted to download the update when you next start ANTS Memory Profiler 8.


Dominic Smith,
Project Manager,
Red Gate Software.
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Location: Cambridge, UK

Postby Clive Tong » Wed Oct 09, 2013 11:41 am

We'd very much like to track this down.

Please can you run VMMap (http://technet.microsoft.com/en-gb/sysi ... 35533.aspx) on the application and send it to us (clive DOT tong AT red HYPHEN gate DOT com). If you could include a screenshot of the data that ANTS is showing at the same time, that would be very useful.

Clive Tong
Posts: 283
Joined: Thu Dec 04, 2008 5:42 pm

Postby Clive Tong » Fri Oct 11, 2013 8:06 am

After some investigation, the unaccounted size was mainly the size of the unmanaged stacks (which don't appear in the module breakdown).

I've added an internal bug tracking report to get information about the stacks displayed in the UI.
Clive Tong
Posts: 283
Joined: Thu Dec 04, 2008 5:42 pm

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