Agreed on both counts. The grep would have to become map not vice versa, and doing away with both is better yet.

At that point, I'd probably unwrap the filter sub back into the while loop so the regexes can operate directly on $_ "legitimately".

And at that point, you start to wonder how many times each set of files is reprocessed with different sets of user/date/start-time/stop-times?

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
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In reply to Re^3: How to improve speed of reading big files by BrowserUk
in thread How to improve speed of reading big files by korlaz

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