** Fastest approach tested so far **

As suggested by BrowserUk, I have done a test using the file reading method as suggested. The results absolutely encouraging. From previous reading + processing = 21sec+-. It reduced to just 15sec or less with added up more data from 300k to 400k lines of data.

my (@dat) = ();
    
open (DATF, "<$file_name");    
while( <DATF> ) {
  my ($line) = $_;
  chomp($line);
  my (%trec) = &line2rec($line);

  # just do some filtering here
  if ($trec{'active'})
   {
   }
  
  # just testing to move every data line into array
  push (@dat, $line);
}

close(DATF);

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In reply to Re: Process large text data in array by hankcoder
in thread Process large text data in array by hankcoder

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