
> > > > We received a query through the Advocacy site about whether we support
> > > > AIX 5.1 or not, so am trying to find out.
> > > 
> > > It should work.  Andreas just submitted a port confirmation on AIX
> > > 4.3.2 ...

> > Do you feel there's anyone around that would be able to give a
> > definitite yes or no?

I don't have AIX 5 here, so cannot test, sorry.
But yes, it should definitely work.

There is a known possible performance improvement for concurrent sessions on 
multiprocessor AIX machines. The now depricated "cs(3)" used for the AIX TAS 
implementation should be replaced with fetch_and_or, compare_and_swap or the 
like. I just haven't got round to doing a patch that I trust. 

Maybe Tatsuo can say more ?

Andreas

Thu, 14 Nov 2002 16:25:49 +0100
"Zeugswetter Andreas SB SD" <ZeugswetterA@spardat.at>
Re: Does v7.2.x support AIX 5.1?
Zeugswetter Andreas SB SD wrote:
> I don't have AIX 5 here, so cannot test, sorry.
> But yes, it should definitely work.
> 
> There is a known possible performance improvement for concurrent sessions on 
> multiprocessor AIX machines. The now depricated "cs(3)" used for the AIX TAS 
> implementation should be replaced with fetch_and_or, compare_and_swap or the 
> like. I just haven't got round to doing a patch that I trust. 
> 
> Maybe Tatsuo can say more ?

cs() is gone in 7.3beta because cs() was failing on SMP machines anyway.
The new code is:

	#define TAS(lock)           _check_lock(lock, 0, 1)
	#define S_UNLOCK(lock)      _clear_lock(lock, 0)

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
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Thu, 14 Nov 2002 11:03:53 -0500 (EST)
Bruce Momjian <pgman@candle.pha.pa.us>
Re: Does v7.2.x support AIX 5.1?