Perl FCGI process and Perl's garbage collection

HI,

On most system, Garbage collection of a perl process does Not return
the memory freed to system, instead, it reserves it for its (the perl
process) future use.

I am developing a Perl FCGI application. ab stress test with 30,000
requests result in a huge accumulated memory footprint for the FCGI
perl process.

My question is: even if the code is clean, but due to perl's garbage
collection behavior as stated above, a long run perl FCGI process will
bound to accumulate memory footprint. so we have to spawn a new
process once over some time and exit the parent?

Is my understanding correct? or any other alternative solution to this
problem so that perl FCGI process Does return memory to the OS?

Many thanks

Galen
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