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Re: A better way to make the script run faster?

by SuicideJunkie (Vicar)
on Jul 31, 2013 at 13:27 UTC ( #1047267=note: print w/replies, xml ) Need Help??

in reply to A better way to make the script run faster?

Doing 27 million of anything is going to take a while.

I should note that =~/^$gl[$index]$/ is better written as eq $gl[$index] unless you have regex metacharacters in your @gl which you have not shown.

A better way to go about this, is to scan @hfr_genes and count the genes using a hash, which will have {LYPLA1 => 13245, CD9=> 42, MYC=>13, ...}. That way, you only scan through your 73372 values ONCE. Then print the tallies by looping over the 375 values once.

73372 + 375 << 73372 * 375 ;)

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[TCLion]: Good Morning Monks, I am parsing logs and some date time formats are inconsistent. I am trying to make output all same format. What is the best way to convert a month(word) to month(number)?
[Corion]: TCLion: I'm not aware of a better way than manually building the hash, as all strptime incarnations I know have nasty edge cases
[davido]: And remember; time is hard. :) As soon as you think, I've got this, you'll discover that time is harder than that. :)
[1nickt]: TCLion are you parsing the dates with DateTime or another tool?

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