While demonstrating one point is wrong (and again making it clear that until you benchmark, you don't really know what is faster), you demonstrate the other.

What happens in your chunk code with the last line? Which is more code? And when you are doing fixing that you may still be twice as fast but with quite a bit more (and harder to read) code. Going forward that is more to maintain.

I would strongly argue against this optimization (which I think might well give different results on different operating systems) until after your system is built and performance is known to be a problem.

One note though. The IO* modules generally have significant overhead and I don't recommend using them.

EDIT
Another bug. You used split in the chunk method without the third argument. Should your block land at the start of a paragraph, you would incorrectly lose lines!

In reply to RE (tilly) 5: File reading efficiency and other surly remarks by tilly
in thread File reading efficiency and other surly remarks by Hot Pastrami

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