CODEWITHSUNDEEP
c#.netperformancememory
miloud
miloud

Reputation: 119

How to measure the accruate memory usage for a code or process?

I'm trying to measure the memory usage for a code and process using Process.privateBytes and Process.workingSet but if i run the application several time, each time i have different values ?

What is the accurate way to have ~same values each times ?

Upvotes: 0

Views: 454

Answers (3)

Sebastian Negraszus
Sebastian Negraszus

Reputation: 12195

For accurate measurement of memory consumption you may use a professional memory profiler. However, the best ones such as JetBrains dotMemory and Redgate ANTS are not free.

Upvotes: 0

Ed Pavlov
Ed Pavlov

Reputation: 2508

If you need to measure memory usage from code (as you mentioned in a comment) use JetBrains dotMemory Unit framework (it's free), it's designed exactly for such tasks.

var snapshot1 = dotMemoryApi.GetSnapshot();
foo.Bar(); // run your code
var allocatedSize = dotMemoryApi.GetDifference(snapshot1).GetNewObjects().SizeInBytes;

It is designed to be used with unit tests easily, but also can be used with any application. Current EAP version contains standalone launcher for that purpose. Ask me if you need a help with that framework.

There is online doc for previous version https://www.jetbrains.com/dotmemory/unit/help/Introduction.html

Upvotes: 1

user5182661
user5182661

Reputation:

Process.privateBytes is an Approximation and unless the code in question and in the process has nothing but a Thread.Sleep() for all the threads it spawns, the values are bound to vary(dependening on memory consumed + GC)

Also refer What is private bytes, virtual bytes, working set?

Upvotes: 1

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