I am confused. I first assumed that the data you show is a 60-sec sample extracted from a 24-hr file. However, the length of this file times 60 minutes times 24 hours is not even close to the 82Mb which you specify. The expected output that your posted appears to be a header line and a summary of the data sample given. The first problem that I see is that much of that data is not available in the hash that you posted.
Bill

In reply to Re: parse XML huge file using cpan modules by BillKSmith
in thread parse XML huge file using cpan modules by nicopelle

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