Re: PostgreSQL for VAX on NetBSD/OpenBSD

From: John Klos <john(at)ziaspace(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Dave McGuire <mcguire(at)neurotica(dot)com>, Andres Freund <andres(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, port-vax(at)netbsd(dot)org, vax(at)openbsd(dot)org, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: PostgreSQL for VAX on NetBSD/OpenBSD
Date: 2014-06-29 19:39:29
Message-ID: Pine.NEB.4.64.1406291937080.875@andromeda.ziaspace.com
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> Well, the issue from our point of view is that a lot of what we care about
> testing is extremely low-level hardware behavior, like whether spinlocks
> work as expected across processors. It's not clear that a simulator would
> provide a sufficiently accurate emulation.
>
> OTOH, the really nasty issues like cache coherency rules don't arise in
> single-processor systems. So unless you have a multiprocessor VAX
> available to spin up, a simulator may tell us as much as we'd learn
> anyway.
>
> (If you have got one, maybe some cash could be found --- we do have
> project funds available, and I think they'd be well spent on testing
> purposes. I don't make those decisions though.)

Depending on how often you'd like the system to try to run a compile, I'd
be happy to run it on a VAXstation 4000/60. It runs bulk package builds
for pkgsrc, but we could do a compile every week or so (every day would
really eat into cycles for other packages).

John

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