Date: Tue, 23 Apr 2002 22:04:08 -0700 From: David Schultz <dschultz@uclink.Berkeley.EDU> To: Terry Lambert <tlambert2@mindspring.com> Cc: kalts@estpak.ee, "Marc G. Fournier" <scrappy@hub.org>, freebsd-current@FreeBSD.ORG, freebsd-stable@FreeBSD.ORG Subject: Re: FreeBSD 4.5-STABLE not easily scalable to large servers ... ? Message-ID: <20020423220408.C3593@HAL9000.wox.org> In-Reply-To: <3CC5B52B.49A5A719@mindspring.com>; from tlambert2@mindspring.com on Tue, Apr 23, 2002 at 12:25:31PM -0700 References: <3CC4C683.F9AEF14E@mindspring.com> <20020423092909.N1721-100000@mail1.hub.org> <20020423184534.GA30212@myhakas.estpak.ee> <3CC5B52B.49A5A719@mindspring.com>
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Thus spake Terry Lambert <tlambert2@mindspring.com>: > Writing a useful (non-"fluff") technical book, optimistically, > takes 2080 hours ... or 40 hours per week for 52 weeks... a man > year. > > By the time you are done, the book is a year out of date, and > even if you worked really hard and kept it up to date (e.g. you > had 4 authors and spent only 6 months of wall time on the book), > the shelf life on the book is still pretty short. Although it would be unreasonable to comprehensively document the kernel internals and expect the details to remain valid for a year, there is a great deal of lasting information that could be conveyed. For example, Kirk's 4.[34]BSD books cover obsolete systems, and yet much of what they say applies equally well to recent versions of FreeBSD. It's true that the specific question ``How do I change my KVA size?'' might have different answers at different times, but I doubt that the ideas behind an answer have all been invented in the last few months. Even things like PAE, used by the Linux 2.4 kernel, remind me of how DOS dealt with the 1 MB memory limit. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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