Messages in this thread |  | | Date | Mon, 20 Jan 1997 21:58:44 -0500 | From | "David S. Miller" <> | Subject | Re: Good point of Linux over Windows NT |
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Date: Mon, 20 Jan 1997 21:37:04 -0500 (EST) From: "Richard B. Johnson" <root@analogic.com>
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 BETTER.
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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