Rails - Dec 2007 - memory management in long running scripts

Hi,

I have a script that runs for a long time, and seems to use up a large
chunk of memory, building up fairly quickly, but then never really
going above 55% of the system memory.  This is the basic structure of
my script:

loop do
  Find.find(path) do |name|
    if FileTest.directory? name
      Find.prune unless name.eql? path
    else
      do_something_with_file
    end
  end
  sleep(0.05)
end

Even when my do_something_with_file function is modified to simply
return right away, the memory usage of the script continues to
increase.  Is there any issue with reading directories as I am above?
Or is there a way to cap the amount of memory a script uses, or a way
to force garbage collection?

Thanks,

Simon
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