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Java Forum / Virtual Machine / July 2006calculating Runtime.freeMemory() if mutiple java are running
I have a question : if I run two instances of Java and then calculate the Runtime.freeMemory() then what exactly is it supposed to give me ? 1) is the free memory of the respective class that is running 2) free memory of both the classes in common ? more to Explain : shell commands that i execute are java class_1 & java class_2 thus i am orunning two instances of java. If both the classes call the funtion Runtime.freeMemory() and Runtime.totalMemory(). please tell me what exactly does the values denote now ...? are these values for the common processes ie totalMemory = totalMemory() <case 1> + totalMemory() <case 2> and please tell me what happens in the case of freeMemory() ? Please clarfiy this. Thanks . > I have a question : if I run two instances of Java and then calculate > the Runtime.freeMemory() then what exactly is it supposed to give me ? [quoted text clipped - 15 lines] > Please clarfiy this. > Thanks . freeMemory() basically tells you how much memory is available in the virtual machine running your class. If you run two java instances as in your example you have two separate virtual machines running, hence you get for each freeMemory() call the amount of free memory for the particular virtual machine. Alexander Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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