[CentOS] humor (was Re: OT: systemd Poll)

Thu Apr 13 05:32:24 UTC 2017
Jon LaBadie <jcu at labadie.us>

On Wed, Apr 12, 2017 at 07:41:33PM +0200, Andrew Holway wrote:
> >
> > Of course, to be fair, there may have been a *reason* for not doing it
> > that way before....
> >
> Between the early 1990's and early 2000's the price of a GB of memory went
> from ~$100,000 to ~$1000*. I guess a lot of the design decisions made for
> things like init were focussed on this. In 1995 is was common for server
> platforms to have 32Mb ram whereas the kernel alone in my PC here at home
> is consuming just over 500MB. It seems reasonable that software components
> built in 1997 will not be fit for purpose in 2017.

Just another historic note.  Until System V, Release 4,
circa 1989 or 90, AT&T's Unix ran on computers with a
64KB memory space.  That was just the code though,
the data, static, dynamic, and stack were in a second
64KB space.  That was all the pdp-11 allowed.

The merger of BSD code with AT&T code in SVR4 pushed
it off of the pdp-11s.  But it still ran on things
like the AT&T 3B-20 which had a 1MB virtual memory
addressing scheme.

Jon H. LaBadie                 jon at jgcomp.com
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