Ok missed your point about length of variable names. I didn't get that from original question (just went past PV).

This appears to have a LOT to do about memory-mapped virtual address space. If you create a structure that cannot fit into memory at once, the performance penalty can be awesome depending upon how localized the access is to this structure.

In reply to Re^3: PV limits on 64-bit perls? by Marshall
in thread PV limits on 64-bit perls? by BrowserUk

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