The answer to this turns out to be some support for some rarely required functionality meant that perls stat had to open and then close each one of those files. Later perls will/should support ${^WIN32_SLOPPY_STAT}=1; which will disable this behaviour.

Sorry about how long it took to figure it out. :-)

---
$world=~s/war/peace/g

In reply to Re: -s takes too long on 15,000 files by demerphq
in thread -s takes too long on 15,000 files by ishk0

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