Perl's IO buffer size was changed from 4096 pre-5.14 to 8192 post 5.14. It's also configurable at build time.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority". I'm with torvalds on this
In the absence of evidence, opinion is indistinguishable from prejudice. Agile (and TDD) debunked

In reply to Re^3: how many chars/bytes does STDOUT buffer (test) by BrowserUk
in thread how many chars/bytes does STDOUT buffer by sandy105

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