5 minutes for 20k lines? What is the process doing? Is it really running on the CPU then? Is it waiting for I/O? Do you have a tool like HP's glance available to inspect the running process? What's the breakdown in wallclock, systemtime and usertime for the 5 second and 5 minute runs?

Obviously it's not a well-known feature that Perl sometimes runs 60 times slower than other times on the same input. So, before getting a useful answer, you need to supply more data.

Abigail

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

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