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POSIX IO Must Die!

Mar 03, 2010, 18:32 (4 Talkback[s])
(Other stories by Jeffrey B. Layton)

"POSIX IO is becoming a serious impediment to IO performance and scaling. POSIX is one of the standards that enabled portable programs and POSIX IO is the portion of the standard surrounding IO. But as the world of storage evolves with greatly increasing capacities and greatly increasing performance, it is time for POSIX IO to evolve or die.

"POSIX (Portable Operating System Interface for Unix) is a set of standards that define the application programming interface (API) as well as some shell and utility interfaces. It was developed primarily for *nix operating systems but actually any operating system can utilize the standards. POSIX IO (not an official name) is the portion of the standard that defines the IO interface for POSIX compliant applications. Function such as read(), write(), open(), close(), lseek(), fwrite(), fread(), and so on, are defined including their errors. But these definitions were first codified in 1988 - 22 years ago!"

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