On Thu, Oct 17, 2013 at 5:41 PM, Peter Eisentraut pete...@gmx.net wrote:
On 10/17/13 12:45 PM, Robert Haas wrote:
The attached patch, which I propose to apply relatively soon if nobody
objects, removes the IRIX port.
+1
Done. And here's a patch for removing the alpha architecture and
Tru64
Just to be pedantic, commit message shows
support for Tru64 ended in 201.
I think you mean 2012.
On 18/10/2013 13:41, Robert Haas robertmh...@gmail.com wrote:
On Thu, Oct 17, 2013 at 5:41 PM, Peter Eisentraut pete...@gmx.net wrote:
On 10/17/13 12:45 PM, Robert Haas wrote:
The
On Fri, Oct 18, 2013 at 9:39 AM, Tim Kane tim.k...@gmail.com wrote:
Just to be pedantic, commit message shows
support for Tru64 ended in 201.
I think you mean 2012.
Duh, I'm a dork. Thanks.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
On 10/18/2013 02:41 PM, Robert Haas wrote:
On Thu, Oct 17, 2013 at 5:41 PM, Peter Eisentraut pete...@gmx.net wrote:
On 10/17/13 12:45 PM, Robert Haas wrote:
The attached patch, which I propose to apply relatively soon if nobody
objects, removes the IRIX port.
+1
Done. And here's a patch
On 2013-10-18 18:24:58 +0200, Stefan Kaltenbrunner wrote:
On 10/18/2013 02:41 PM, Robert Haas wrote:
On Thu, Oct 17, 2013 at 5:41 PM, Peter Eisentraut pete...@gmx.net wrote:
On 10/17/13 12:45 PM, Robert Haas wrote:
The attached patch, which I propose to apply relatively soon if nobody
On 10/18/2013 06:29 PM, Andres Freund wrote:
On 2013-10-18 18:24:58 +0200, Stefan Kaltenbrunner wrote:
On 10/18/2013 02:41 PM, Robert Haas wrote:
On Thu, Oct 17, 2013 at 5:41 PM, Peter Eisentraut pete...@gmx.net wrote:
On 10/17/13 12:45 PM, Robert Haas wrote:
The attached patch, which I
On Thu, Oct 17, 2013 at 3:10 PM, Robert Haas robertmh...@gmail.com wrote:
On Thu, Oct 17, 2013 at 12:22 AM, Noah Misch n...@leadboat.com wrote:
Removing support for alpha is a different animal compared to removing support
for non-gcc MIPS and most of the others in your list. A hacker wishing
On Fri, Oct 18, 2013 at 9:55 AM, Ants Aasma a...@cybertec.at wrote:
FWIW, I think that if we approach coding lock free algorithms
correctly - i.e. which memory barriers can we avoid while being
safe, instead of which memory barriers we need to add to become
safe - then supporting Alpha isn't a
On 2013-10-18 18:36:03 +0200, Stefan Kaltenbrunner wrote:
On 10/18/2013 06:29 PM, Andres Freund wrote:
On 2013-10-18 18:24:58 +0200, Stefan Kaltenbrunner wrote:
hmm there are still some operating systems that officially support the
alpha architecture which will likely result in problems for
On Fri, Oct 18, 2013 at 8:04 PM, Peter Geoghegan p...@heroku.com wrote:
On Fri, Oct 18, 2013 at 9:55 AM, Ants Aasma a...@cybertec.at wrote:
FWIW, I think that if we approach coding lock free algorithms
correctly - i.e. which memory barriers can we avoid while being
safe, instead of which
On 10/17/2013 09:45 AM, Robert Haas wrote:
According to http://en.wikipedia.org/wiki/UnixWare, UnixWare is not
dead, although there have been no new releases in 5 years.
Gee, I wonder why?
I'll point out that SCO laid off all of its packagers three or four
years ago. So nobody is packaging
On Thu, Oct 17, 2013 at 12:22 AM, Noah Misch n...@leadboat.com wrote:
Removing support for alpha is a different animal compared to removing support
for non-gcc MIPS and most of the others in your list. A hacker wishing to
restore support for another MIPS compiler would fill in the assembly
On Wed, Oct 16, 2013 at 1:25 PM, Stefan Kaltenbrunner
ste...@kaltenbrunner.cc wrote:
On 10/16/2013 07:04 PM, Robert Haas wrote:
On Sat, Oct 12, 2013 at 8:46 PM, Andres Freund and...@2ndquadrant.com
wrote:
I think we should remove support the following ports:
- IRIX
- UnixWare
- Tru64
On 10/17/13 12:45 PM, Robert Haas wrote:
The attached patch, which I propose to apply relatively soon if nobody
objects, removes the IRIX port.
+1
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On Tue, Oct 15, 2013 at 8:33 AM, Andres Freund and...@2ndquadrant.com wrote:
On 2013-10-13 16:56:12 +0200, Tom Lane wrote:
More to the point for this specific case, it seems like our process
ought to be
(1) select a preferably-small set of gcc atomic intrinsics that we
want to use.
I
On 2013-10-16 12:26:28 -0400, Robert Haas wrote:
On Tue, Oct 15, 2013 at 8:33 AM, Andres Freund and...@2ndquadrant.com wrote:
On 2013-10-13 16:56:12 +0200, Tom Lane wrote:
More to the point for this specific case, it seems like our process
ought to be
(1) select a preferably-small set of
On Sat, Oct 12, 2013 at 8:46 PM, Andres Freund and...@2ndquadrant.com wrote:
I think we should remove support the following ports:
- IRIX
- UnixWare
- Tru64
According to http://en.wikipedia.org/wiki/IRIX, IRIX has been
officially retired. The last release of IRIX was in 2006 and support
will
On 10/16/2013 07:04 PM, Robert Haas wrote:
On Sat, Oct 12, 2013 at 8:46 PM, Andres Freund and...@2ndquadrant.com wrote:
I think we should remove support the following ports:
- IRIX
- UnixWare
- Tru64
According to http://en.wikipedia.org/wiki/IRIX, IRIX has been
officially retired. The
On 2013-10-16 13:04:23 -0400, Robert Haas wrote:
So I vote for removing IRIX and Tru64 immediately, but I'm a little
more hesitant about shooting UnixWare, since it's technically still
supported.
I think if somebody wants to have it supported they need to provide a
buildfarm member and
- sinix (s_lock support remaining)
- sun3 (I think it's just s_lock support remaining)
- natsemi 32k
Patch removing spinlock support for these three ports is attached.
This is not to say we couldn't remove more later, but these seem to be
the three spinlock implementations that are most
On 2013-10-16 13:55:20 -0400, Robert Haas wrote:
- sinix (s_lock support remaining)
- sun3 (I think it's just s_lock support remaining)
- natsemi 32k
Patch removing spinlock support for these three ports is attached.
This is not to say we couldn't remove more later, but these seem to be
On 2013-10-16 13:04:23 -0400, Robert Haas wrote:
- m86k (doesn't have a useable CAS on later iterations like coldfire)
I don't think we can desupport it just because it doesn't have CAS.
Btw, if necessary we could easily support the pre coldfire
variants. Note that e.g. debian doesn't
On Wed, Oct 16, 2013 at 1:52 PM, Andres Freund and...@2ndquadrant.com wrote:
On 2013-10-16 13:04:23 -0400, Robert Haas wrote:
So I vote for removing IRIX and Tru64 immediately, but I'm a little
more hesitant about shooting UnixWare, since it's technically still
supported.
I think if somebody
On Sat, Oct 12, 2013 at 06:35:00PM -0700, Peter Geoghegan wrote:
- ALPHA (big pain in the ass to get right, nobody uses it anymore)
Yes, for many years now ALPHA has only been useful as a way of
illustrating how bad it's possible for CPU memory operation reordering
considerations to get. So
On 2013-10-16 15:49:54 -0400, Bruce Momjian wrote:
On Sat, Oct 12, 2013 at 06:35:00PM -0700, Peter Geoghegan wrote:
- ALPHA (big pain in the ass to get right, nobody uses it anymore)
Yes, for many years now ALPHA has only been useful as a way of
illustrating how bad it's possible for
On Wed, Oct 16, 2013 at 3:26 PM, Andres Freund and...@2ndquadrant.com wrote:
I don't agree with that policy. Sure, 97% of our users are probably
running Linux, Windows, MacOS X, or one of the fairly-popular BSD
variants. But I think a part of the appeal of PostgreSQL is that it is
On 2013-10-16 16:10:18 -0400, Robert Haas wrote:
On the other hand, I'm not convinced that we don't need to give any
thought to UNIX vendors that are still pushing their proprietary
compilers. Many of the old players are dead, but IBM's ICC and HP's
aCC definitely aren't, and I wouldn't be
On 2013-10-16 16:10:18 -0400, Robert Haas wrote:
(though I don't see the code you're talking about wrt/32bitv9
sparc)
v9 sparc doesn't support compare-and-swap like operations, that's the
background.
Greetings,
Andres Freund
--
Andres Freund http://www.2ndQuadrant.com/
On Wed, Oct 16, 2013 at 10:04:29PM +0200, Andres Freund wrote:
On 2013-10-16 15:49:54 -0400, Bruce Momjian wrote:
On Sat, Oct 12, 2013 at 06:35:00PM -0700, Peter Geoghegan wrote:
- ALPHA (big pain in the ass to get right, nobody uses it anymore)
Yes, for many years now ALPHA has only
On 2013-10-13 16:56:12 +0200, Tom Lane wrote:
More to the point for this specific case, it seems like our process
ought to be
(1) select a preferably-small set of gcc atomic intrinsics that we
want to use.
I suggest:
* pg_atomic_load_u32(uint32 *)
* uint32 pg_atomic_store_u32(uint32 *)
*
On Sun, Oct 13, 2013 at 5:34 AM, Tom Lane t...@sss.pgh.pa.us wrote:
- PA-RISC. I think Tom was the remaining user there? Maybe just !gcc.
Until pretty recently, there was a PA-RISC machine (not mine) in the
buildfarm. I don't see it in the list today though. In any case,
HP's compiler has
On 2013-10-14 09:40:10 -0400, Robert Haas wrote:
On Sun, Oct 13, 2013 at 5:34 AM, Tom Lane t...@sss.pgh.pa.us wrote:
- PA-RISC. I think Tom was the remaining user there? Maybe just !gcc.
Until pretty recently, there was a PA-RISC machine (not mine) in the
buildfarm. I don't see it in the
On Mon, Oct 14, 2013 at 9:41 AM, Andres Freund and...@2ndquadrant.com wrote:
On 2013-10-14 09:40:10 -0400, Robert Haas wrote:
On Sun, Oct 13, 2013 at 5:34 AM, Tom Lane t...@sss.pgh.pa.us wrote:
- PA-RISC. I think Tom was the remaining user there? Maybe just !gcc.
Until pretty recently,
On 2013-10-14 09:42:46 -0400, Robert Haas wrote:
On Mon, Oct 14, 2013 at 9:41 AM, Andres Freund and...@2ndquadrant.com wrote:
On 2013-10-14 09:40:10 -0400, Robert Haas wrote:
On Sun, Oct 13, 2013 at 5:34 AM, Tom Lane t...@sss.pgh.pa.us wrote:
- PA-RISC. I think Tom was the remaining user
Andres Freund and...@2ndquadrant.com writes:
I think we should remove support for the following architectures:
- superH
This one was contributed just a year or two ago, if memory serves,
which suggests that somebody out there cares about it. OTOH, if
they still care, we could insist they
On 2013-10-12 18:35:00 -0700, Peter Geoghegan wrote:
Not so sure about these.
- M32R (no userspace CAS afaics)
I don't think M32R will hurt us/anybody much.
- 32bit/v9 sparc (doesn't have proper atomics, old)
Sparc v9 is from 1995, so I think not supporting it anymore is
fair. It's afaics
On 2013-10-13 11:34:42 +0200, Tom Lane wrote:
Andres Freund and...@2ndquadrant.com writes:
I think we should remove support for the following architectures:
- superH
This one was contributed just a year or two ago, if memory serves,
which suggests that somebody out there cares about it.
On 2013-10-13 14:08:59 +0200, Andres Freund wrote:
On 2013-10-13 11:34:42 +0200, Tom Lane wrote:
Andres Freund and...@2ndquadrant.com writes:
I think we should remove support for the following architectures:
- superH
This one was contributed just a year or two ago, if memory serves,
Andres Freund and...@2ndquadrant.com writes:
That's a fair point. But all of them will use gcc, right? I've
previously thought we'd need 4.4 because there's an incompatibility
between 4.3 and 4.4 but I think it won't touch us, so 4.2 which added
atomics for mips seems fine. Given there's no
On 2013-10-13 16:56:12 +0200, Tom Lane wrote:
Andres Freund and...@2ndquadrant.com writes:
That's a fair point. But all of them will use gcc, right? I've
previously thought we'd need 4.4 because there's an incompatibility
between 4.3 and 4.4 but I think it won't touch us, so 4.2 which added
Andres Freund and...@2ndquadrant.com writes:
The question about platforms that simply cannot provide such atomics
like PA-RISC, which afaics is the only one, remains tho. I am not sure
we really want to provide codepaths that are only going to be tested
there.
PA-RISC is a dead architecture.
On 2013-10-13 20:39:21 +0200, Tom Lane wrote:
Andres Freund and...@2ndquadrant.com writes:
The question about platforms that simply cannot provide such atomics
like PA-RISC, which afaics is the only one, remains tho. I am not sure
we really want to provide codepaths that are only going to
On Sat, Oct 12, 2013 at 5:46 PM, Andres Freund and...@2ndquadrant.com wrote:
I think we should remove support the following ports:
- IRIX
- UnixWare
- Tru64
Neither of those are relevant.
Seems reasonable.
I think we should remove support for the following architectures:
- VAX
Agreed.
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