Either remove some of your 16Gb of data, or write it in C. You also may consider caching the calls to UnixDate and Date_ConvTZ, but you then may risk the chance of a performance loss due to the additional memory (it depends on the number of different values).

I do notice two assignments to $pst_converted_date, but it's never used. And extracted_YMD is UnixDate(Date_ConvTZ(UnixDate(...))). That should be possible with a single UnixDate call. And the final match could be an eq.

In reply to Re: Optimise the script by JavaFan
in thread Optimise the script by Anonymous Monk

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