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Re: Optimise file line by line parsing, substitute SPLIT

by hbm (Hermit)
on Jun 03, 2013 at 14:40 UTC ( #1036779=note: print w/replies, xml ) Need Help??


in reply to Optimise file line by line parsing, substitute SPLIT

For the little it's worth here, I'd take advantage of $. and $_. Minimize what you are doing millions of times; and then yes, run a handful in parallel.

open(my $fh, '<', $file) or die("Can not open file $file to read!\n"); while(<$fh>) { chomp; my ($a,$b,$c,$d,$e,$f,$g,$h,$i,$j,$k) = split("\t", $_, 11); # do something real } print "\n# of lines: $.\n"; close($fh);

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