OutOfMemoryException

I am trying to define an array of 2G bytes:

Code:

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byte[] arr = new byte[2000000000];

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But it throws an OutOfMemoryException. I can't create an array of more than 1.2GB.

I understand that each process gets its share of the virtual memory. But I also know that the maximum virtual memory for a process is 4GB.

How do I make it work?
(Please don't tell me to allocate less memory :wave: )

hello

as far as I remember from my operating systems lessons, you are right , a process has 4 gb virtual memory. but that size contains the necessary parts that the operating system needs to run that process. for example as far as I remember the first 1 gb part of it is used by the operating system. i am not sure but ...

See also this thread:
http://www.codeguru.com/forum/showthread.php?t=352682

there is an implementation here for a big array
http://blogs.msdn.com/joshwil/archiv...10/450202.aspx