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I’ll presume that you are intending by the above to create a minimalistic example.   But, we need details here:   how large is this data structure?   Are you running a 64-bit version of Perl?   Do you have any idea as to the memory-footprint of this application prior to the step that generates the XML file?   Is there any possibility at all of self-referential “loops” within this data structure, which might cause an algorithm to iterate endlessly?   (Test::Memory::Cycle, and Devel::Cycle, can automatically look for these.)

Obviously, it is unreasonable to expect that a program running on a 32GB machine, dealing with a data structure that is thought to be about 1GB, and running 64-bit software in a 64-bit environment, would be encountering such issues.   (Whereas, BTW, if the actual system were 32-bit, the total memory space would be less than 2GB, and overflow is a distinct possibility.)   So, we really don’t have enough solid details here with which to offer many solutions . . . yet.   I’m not yet persuaded that we should finger this particular package.   Rather, I suspect that there is something else going on that we don’t yet see.


In reply to Re: out of memory issue while creating very large xml file using XML::Simple by sundialsvc4
in thread out of memory issue while creating very large xml file using XML::Simple by perlCrazy

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