I have a HUGE array $data[$i][$j] where $i is typically 0..99999 and $j is typically 0..999 or so. The problem is that garbage collection takes several minutes, so the program is very slow to terminate. Doing a 
foreach $i (0..whatever)
{
   $data[$i] = ();
}

[download]
helps the garbage collector work faster by about a factor of 2 or three. Switching the order of $i and $j seems to make things slower. It seems that there ought to be a better way. What can I do to help out the garbage collector do this faster?

In reply to Helping the garbage collector by vlakkies

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