Personally, I imagine that Perl's implementation of read shields us from the vagaries of reads for other buffer lengths. Maybe POSIX's definition of read has such length limitations, but if so, I would imagine those being confined to sysread. So making the value of 512 at least configurable seems prudent.

In reply to Re: Portability of Large read Lengths by Corion
in thread Portability of Large read Lengths by johnmyleswhite

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