> -----Original Message-----
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Tom Lane
> Sent: 13 September 2005 23:03
> To: Marko Kreen
> Cc: pgsql-hackers@postgresql.org
> Subject: Re: [HACKERS] Spinlocks, yet again: analysis and 
> proposed patches 
> 
> I'm starting to think that we might have to succumb to having 
> a compile
> option "optimize for multiprocessor" or "optimize for single 
> processor".
> It's pretty hard to see how we'd alter a data structure decision like
> this on the fly.

That would be a major pita for packagers of binary distributions. 

Regards, Dave.

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