Re: Atomics hardware support table & supported architectures

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Andres Freund <andres(at)2ndquadrant(dot)com>
Cc: Noah Misch <noah(at)leadboat(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Merlin Moncure <mmoncure(at)gmail(dot)com>, Abhijit Menon-Sen <ams(at)2ndquadrant(dot)com>, Petr Jelinek <petr(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Atomics hardware support table & supported architectures
Date: 2014-06-24 17:22:08
Message-ID: 20999.1403630528@sss.pgh.pa.us
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Andres Freund <andres(at)2ndquadrant(dot)com> writes:
> On 2014-06-24 13:03:37 -0400, Noah Misch wrote:
>> If a change has the potential to make some architectures give wrong
>> answers only at odd times, that's a different kind of problem. For
>> that reason, actively breaking Alpha is a good thing.

> Not sure what you mean with the 'actively breaking Alpha' statement?
> That we should drop Alpha?

+1. Especially with no buildfarm critter. Would anyone here care
to bet even the price of a burger that Alpha isn't broken already?

Even if we *had* an Alpha in the buildfarm, I'd have pretty small
confidence in whether our code really worked on it. The buildfarm
tests just don't stress heavily-concurrent behavior enough.

regards, tom lane

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