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6803: [MUD-Dev] Re: lurker emerges
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From: Petri Virkkula <pvirkkul@iki.fi>
Newsgroups: nu.kanga.list.mud-dev
Date: Mon, 10 Aug 1998 08:57:19 +0300 (EEST)
References: [1] [2] <-newest
Organization: Kanga.Nu
>>>>> "Alex" == T Alexander Popiel <popiel@snugharbor.com> writes:
Alex> You seem to assume that it is impossible for a single thread to keep
Alex> even one I/O device continuously busy. Whatever happened to double-
Alex> buffering and non-blocking I/O? Has that art actually been lost in
Alex> the annals of time?
As far as I know O_NONBLOCK/O_NDELAY on regular files only
prevents blocking on mandatory locks. Atleast that's how I
interpret Solaris's manual page, and my test program indicates
so too. How can double-buffering be done without non-blocking
I/O?
However you are probably right, one thread per physical device
is enough. Doubling thread count was just a guess.
Petri