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SubjectRe: User vs. Kernel (was: To be smug, or not to be smug, that is , the question)
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On Thu, 21 Jan 1999, Jon M. Taylor wrote:
> That is IMHO a bad idea. Linux, because it follows the
>traditional Unix monolithic kernel model, is already so obsolete that it
>really isn't worth putting serious time into incompatible API
>improvements. Its value right now is that it is a free, well-written and
>POSIX-compatible open source Unix clone. Please leave it as such. Just
>treat Linux as what it is: a legacy-compatible *interim* OS that provides
>a nice, mostly-stable and well-known environment in which to develop
>device drivers and OS guts (and apps, GUIs etc too).
>
> Soon, probably within a year or two, a decent, open-source next
>generation OS like Hurd (Microkernel), FluxOS (polymorphic virtual
>machines/nested processes), Dolphin (exokernel), The Cache Kernel, or
>another NGOS will be developed to the point where it can step in and
>cannibalize the guts out of Linux to produce a fully-functional NGOS which
>is suitable for mainstream use. With the Univerity of Utah OSKit having
>been released, this process is well underway and accelerating rapidly. At
>that point, then, we all can dump 25+ years of accumulated Unix API
>brokenness and move on to a clean, modern, well-designed OS.
>
> Linux will then exist only as some sort of NGOS legacy
>compatibility wrapper, like WINE, and the real Linux can gracefully fade
>away into history, its "springboard" role having run its course. This is
>the natural way of things. If you want to "fix" Unix/Linux, do it right
>and rework everything ground-up from first principles. Just MHO of
>course.

I don't want to start a flame war but I have to comment on this...

I've been the part of a couple of NGOS projects at a previous employer. The
fact of the matter is that the OS guts don't matter to most folks except us
techno-geeks. What folks want are applications that work and good hardware
support (ie device drivers). I have seen superior OS designs (and
implementations) wither away and die because there was not a critical mass of
applications and device support. Without *both* of those an OS is just an
interresting footnote.

The reason that Linux/Unix has been around for 25+ years IMHO is because it has
had a reasonably stable API set so a large body of applications could be
developed. Given how long Unix has been around I don't expect Linux to
disappear in short order.

Also remember that Unix did not spring into being with its existing API set.
Many APIs have been developed as lab prototypes that have stood the test of
time and become mainstream features that noone would consider not having. Like
or not the Linux API set is evolving if for no other reason to support new
types of devices. As new device paradigms become more standard we may see new
APIs to allow them to be better exploited.

TTFN - Guy

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