Just a guess here, not a tip exactly: while you're iterating over @found, would it be faster only to split when the timestamp doesn't match? I.e.: 

foreach $f(@found) {
    if ($max !~ /$f/) {
        ($id)=split(/\|/,$f);
        push @set, $id;
    }
}

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BCE
--Your punctuation skills are insufficient!

In reply to Re: Large Set Efficiency Question by BorgCopyeditor
in thread Large Set Efficiency Question by insensate

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