How to checkout from SVN using Terminal in Mac OS X?

Hi,
I am new for SVN. Earlier I have been using CVS. When I checkout the code from SVN using Eclipse, the size of the source code checked out is 612MB. But when I try to checkout from terminal, from my 5.8 branch , the checked out source code's size is only 312.1 MB.

Can anyone tell me what could be the reason for this?

Thanks in Advance,
Afreen