> Of course, but so could any program doing anything. That doesn't constitute a leak.

maybe I misread "reallocating", if that means that at some point the whole array is moved (copied) to a formerly released memory location it's fine.

If Perl was only allocating forward after x push and releasing backwards after x shift and the released memory wasn't reused otherwise, then memory consumption for the process would grow.

This I'd call a leak.

It would be interesting to know how and when this reallocation happens and if it's automatically done on C-level.

update

I now seem to remember (in the context of paging to the disk) that memory management operates on physical blocks or pages which are dispersed over RAM, and translates a virtual address to a physical one. Hence a released block would be naturally reused, without much intervention. :)

Cheers Rolf
(addicted to the Perl Programming Language :)
see Wikisyntax for the Monastery

In reply to Re^4: How to implement a Queue that doesn't leak memory? by LanX
in thread How to implement a Queue that doesn't leak memory? by Anonymous Monk

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