When running over 20,000 lines of data (the SAME data on each run, mind you), the process will sometimes take only 5 seconds to run, and other times the process will take up to 5 minutes to run.

That's a 60x difference, which seems way more than can be accounted for by considering things like whether the file is in the OS's disk cache.

Depending on system load and contention for memory, your approach of reading the entire file into memory may be working against you. Given the pattern you're looking for, you could just as easily scan a line-at-a-time, which would keep the CGI's footprint small.

In reply to Re: Same code, same data, different execution times? by dws
in thread Same code, same data, different execution times? by tekkie

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