Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site well.UUCP Path: utzoo!watmath!clyde!burl!ulysses!ucbvax!ucdavis!lll-crg!well!rchrd From: rchrd@well.UUCP (Richard Friedman) Newsgroups: net.unix Subject: Asynchronous I/O on UNIX? Request for status.. Message-ID: <248@well.UUCP> Date: Thu, 31-Oct-85 19:23:11 EST Article-I.D.: well.248 Posted: Thu Oct 31 19:23:11 1985 Date-Received: Sat, 2-Nov-85 07:16:10 EST Organization: Whole Earth Lectronic Link, Sausalito, CA Lines: 23 Keywords: UNIX I/O I understand that asynchronous I/O is not a part of standard Unix. (By asynch I/O I mean the capability of a program to startup an I/O operation, such as a binary read from disk to memory, and continue to use the cpu while the I/O operation is in progress.. at some later time the program requests status on the operation and waits until the read has completed if it hasn't already). Asynch I/O is an important part of most large scientific mainframe systems and many applications codes require asynch I/O (e.g. CDC BUFFERIN/OUT) to efficiently overlap I/O and computation. As more and more mainframe systems are moving to UNIX, I am very interested in finding out how asynch I/O is being implemented on these systems. Please reply to me directly if you have information, and I will digest it and spew it all back into net.unix later. Thanx. -- [rchrd] = Richard Friedman Pacific-Sierra Research, 2855 Telegraph #415 Berkeley, CA 94705 (415) 540 5216 UUCP: {hplabs,ptsfa,dual}!well!rchrd