I'm not a Perl guru, but I have been knocking around computing for several decades. My experience has been that I/O buffering, especially read i/o buffering, is managed by the o/s, via the drivers. Again, from my experience, there is fairly little you can do at the application level to manage this.

You could, in theory set $/ to a (fairly large) numerical value, and see if it makes a noticeable difference, but I suspect the overhead introduced in explicitly processing end-of-record markers would eat up any savings.

emc

At that time [1909] the chief engineer was almost always the chief test pilot as well. That had the fortunate result of eliminating poor engineering early in aviation.

—Igor Sikorsky, reported in AOPA Pilot magazine February 2003.

In reply to Re: Perl Read-Ahead I/O Buffering by swampyankee
in thread Perl Read-Ahead I/O Buffering by jeffthewookiee

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