Perl 5.8.x is slower that perl 5.6.x at string manipulation.

That's old news. If you only wish to complain about that fair enough, but it is unlikely to change anything.

You do have the option to follow the 5.6.2 upgrade path, provided you can live without the new functionality that is in 5.8.x. But if you need that functionality, then you have to appreciate that it comes with a cost.

There are at least 2 replies in this thread that offer practical steps for mitigating your problem?

Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"Think for yourself!" - Abigail
"Memory, processor, disk in that order on the hardware side. Algorithm, algoritm, algorithm on the code side." - tachyon

In reply to Re^3: Creating very long strings from text files (DNA sequences) by BrowserUk
in thread Creating very long strings from text files (DNA sequences) by bobychan

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