The short answer is you can't. There's nothing you can do at the user level to alter the way perl allocates memory for the base hash structures, and so you're stuck with the performance characteristics as long as you use the busted version of glibc.

The alternatives are either rebuild perl with perl's own malloc rather than the system one (as it doesn't have these issues) or find another malloc to link against rather than the one in glibc. (Which is somewhat problematic, but doable)

In reply to Re: How do I pre-allocate an array of hashes? by Elian
in thread How do I pre-allocate an array of hashes? by jaa

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