Re: [HACKERS] Postgresql & AMD x86-64

Can you send us a patch?

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Martin D. Weinberg wrote:
> Hi folks,
>
> We recently built a dual K8D-based Opteron box running Linux in 64-bit
> mode (Debian 'testing' distribution with newly compiled binutils, gcc,
> and various support libraries for amd64 architecture).
>
> The Postgres 7.3.3 "port" was simply a matter of setting the appropriate
> flags to take of the biarchectecture nature of the Linux port.  (that is,
> "-m64" to generate 64 bit code and either "gcc -m64" or "ld -melf_x86_64"
> for linking").  There were no other issues in the compile.  In the
> install, I had to re-init due to the incompatibility of pg_control.
>
> All the regression tests went smoothly (the one "failure" was in geometry
> and is due to round off in the least sig figs of the doubles in the Point
> structure or machine zero differences).
>
> I compared a simple query on local data in both 32bit mode and 64bit mode;
> the execute time difference was not significant but this was not a compute
> intensive verification (summing up column values in a table).  We have
> some other 32-bit amd machines here; I would be happy to try a few other
> tests.
>
> Good job, developers!!!
>
> On Mon, 07 Apr 2003 18:34:05 +0800
> Justin Clift <justin@postgresql.org> wrote:
>
> > Hi guys,
> >
> > Does anyone want remote access to the upcoming AMD 64 bit architecture,
> > to make sure PostgreSQL runs well on it?
> >
> > It's only via remote access at present, but the AMD guys are willing to
> > help us out here.
> >
> > Regards and best wishes,
> >
> > Justin Clift
> >
> >
> > -------- Original Message --------
> > Subject: RE: Postgresql AMD x86-64
> > Date: Fri, 4 Apr 2003 10:29:24 -0800
> > From: marc.miller@amd.com
> > To: justin@postgresql.org
> > CC: aj@suse.de, chris.rimer@amd.com
> >
> > Justin,
> >
> > I apologize for the delayed response.  Unfortunately, at the moment I
> > don't have a system available to send you.  If I could get you access to
> > a machine remotely, would that be useful to you?  I will need to check
> > machine availability before I can promise you anything, but I'm willing
> > to be your sponsor in the AMD Developer Center and approve a request for
> > access.
> >
> > -----Original Message-----
> > From: Justin Clift [mailto:justin@postgresql.org]
> > Sent: Monday, March 10, 2003 7:31 PM
> > To: Andreas Jaeger
> > Subject: Re: AMD x86-64
> >
> >
> > Hi Andreas,
> >
> > Have you heard anything back from the AMD guys in relation to this?
> >
> > We've not heard a single thing from them.
> >
> > :-(
> >
> > Regards and best wishes,
> >
> > Justin Clift
> >
> >
> > Andreas Jaeger wrote:
> >  > Justin Clift <justin@postgresql.org> writes:
> > <snip>
> >  >>Yep, the aim is to allow PostgreSQL developers access to a system
> >  >>running x86-64 hardware as needed.
> >  >>
> >  >>Trying to get ahead of the ballgame these days.  :)
> >  >>
> >  >>>If you have hammer Hardware, I can provide you with a prerelease of
> >  >>>our software,
> >  >>
> >  >>That would be cool Andreas, thanks.
> >  >>
> >  >>Now, just need to secure the hardware somehow.  Personally, I feel
> >  >>that an email forwarded from you to the right people at AMD may help
> >  >>that significantly.  At least, people from AMD should get in contact
> >  >>with us to see if something beneficial can be arranged.
> >  >
> >  > Ok, I forwarded your note and let's see whether they're interested
> >  > (there're already a few commercial database like IBM DB2 ported).
> >  > From past experience, it might be difficult to get hardware directly
> >  > but let's wait for their answer.
> >  >
> >  > If you don't hear anything this week, feel free to ask me again,
> >  >
> >  > Andreas
> >
> >
> > --
> > "My grandfather once told me that there are two kinds of people: those
> > who work and those who take the credit. He told me to try to be in the
> > first group; there was less competition there."
> > - Indira Gandhi
> >
> >
> > ---------------------------(end of broadcast)---------------------------
> > TIP 4: Don't 'kill -9' the postmaster
> >
>
>
> --
> Martin Weinberg                      Phone: (413) 545-3821
> Dept. of Astronomy                   FAX:   (413) 545-4223
> 530 Graduate Research Tower         weinberg@astro.umass.edu
> University of Massachusetts         http://www.astro.umass.edu/~weinberg/
> Amherst, MA  01003-4525
>
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>
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>

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