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SubjectRe: Good point of Linux over Windows NT
   Date: 	Mon, 20 Jan 1997 21:37:04 -0500 (EST)
From: "Richard B. Johnson" <>

Look at the code. It isn't spinning. It schedules. The CPU time
isn't wasted. Linux is a Unix variant. Unix does Async like
this. VAVen do ASTs (Asynchronous system Trap), NT (borrowed from
VAX/VMS) does the same thing but with another name. Neither is

Kernel level support for async-IO is something that should be at least
thought about. From the UNIX's that I've heard actually do it, they
limit you to one outstanding async-IO request per task/thread. This
seems to suggest it is not a trivial problem to solve at all.

From what I've heard NT allows numerous (unlimited?) outstanding
async-IO requests to be queued to the system, and programmers love
this. Can someone validate this? It's what I've heard, I want to
know if it is true.

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