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  2. MIDRANGE-L
  3. November 2008

Re: Question about reducing program start overhead

Programming for performance is hard to do with simple gut checks like you
suggested.

I chopped an hour or so off of one update and got it down to just a few
minutes by significantly reducing the number of updates. There were
several "many" relations in the "from" file for each of the "one"
relations in the "to" file. So instead of updating the to file for each
read of the from file, I sorted the from file by the key of the to file
and only updated at control break time.
So, when one suggests something without the audience understanding the
full problem I don't think we can justly answer that.

Rob Berendt

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