Well yes for a start you might strongly consider changing 

foreach my $line (<DATASOURCE>){

[download]
to 
while(my $line = <DATASOURCE>) {

[download]
as the former has to build a list (thus requiring a large memory allocation) before it can start iterating. The latter will simply read and process the lines of the file one by one.

/J\

In reply to Re: speeding up script that uses filehandles by gellyfish
in thread speeding up script that uses filehandles by Anonymous Monk

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