rchrd@well.UUCP (Richard Friedman) (11/01/85)
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