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Asked: 2026-05-11T04:25:16+00:00

How can I check programmatically, how much memory my program currently has allocated ?

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How can I check programmatically, how much memory my program currently has allocated ?

I need it for an ASP .NET app, but i suspect the solution is general for all types of .NET applications. Ideally, the operation to get the currently allocated amount of memory, should be fast, since I will need to query it often.

EDIT: Thanks for your answers. I will be using GC.GetTotalMemory for this task, since I need to use it for an ASP .NET application. After some experimenting, I have determined that it is fast and accurate enough for my needs. The suggestion to use Process’ PrivateMemorySize64 property will also work in general; but as pointed out in the answers, for an ASP.NET application there will often be multiple AppDomain’s running in one process. I need the memory total per-AppDomain.

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  1. There is a GC.GetTotalMemory Method but this will only give you an approximation. Is this enough?

    If you call it with GC.GetTotalMemory(false) it will be faster …

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