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.NET Forum / .NET Framework / New Users / February 2007Size of an object
Hi, is there an easy way to know how much memory an instance of an object takes? I mean, there is the sizeof(type), but this is not what I want... the sizeof(type) returns the size of all the members of the class, but if the class contains reference types like a collection or a string, it can't tell... What I need to know is, if there is a collection of strings, with each strings taking 100kb and having 5 strings in the collection, I want to have 500kb (or approx) as a return... is there an easy, thread-safe way? Thanks ThunderMusic btw, I'm using c# with framework 2.0 Hi, | Hi, is there an easy way to know how much memory an instance of an object | takes? [quoted text clipped - 3 lines] | class contains reference types like a collection or a string, it can't | tell... If you look into the archives you will see this is a recurrng question with no clear answer. No, you have no way to know how "big" an object is if you take into account the references it can hold (or the references those referenced instnaces can hold)  SignatureIgnacio Machin machin AT laceupsolutions com > Hi, is there an easy way to know how much memory an instance of an object > takes? [quoted text clipped - 13 lines] > > btw, I'm using c# with framework 2.0 You can add the size of the members in the object to get an approximate value of how much memory it uses. There is no way to get a definite size, though. Take a simple examle: string a = new String('*', 5000); string b = a; If you look at each variable, it uses around 10000 bytes, but if you look at them together, they don't use 20000 bytes in total. So, which of them is it that is using the memory? SignatureGöran Andersson _____ http://www.guffa.com
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