Note that any OS won't overwrite the memory that is set to free! When a process free some chunk of memory it only set the are to free, but won't rewrite and clean the bytes previously writed, and the same is valid when the OS free some memory alocated to a process.

Note that if the memory is rewrited to clean the old data, things will be much more slow, since the work to always clean the old data will be bigger than create new data.

Graciliano M. P.
"Creativity is the expression of the liberty".

In reply to Re: making perl more forgetting by gmpassos
in thread making perl more forgetting by ddzeko

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