I've come to that conclusion myself. The keys to my main hash are stupidly big, so as a quick fix I'm writing them to disk as individual files, containing just a unique number. I'm then using that number as the key. It has reduced the memory usage, but not by as much as I'd hoped.

Thanks one and all for your help on this.

'I think the problem lies in the fact that your data doesn't fit my program'.

In reply to Re^2: Hashing Memory Usage by awkmonk
in thread Hashing Memory Usage by awkmonk

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