Re: 7.3 vs 7.4 performance

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: josh(at)agliodbs(dot)com
Cc: Orion Henry <orion(at)trustcommerce(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: 7.3 vs 7.4 performance
Date: 2004-02-05 15:07:25
Message-ID: 2550.1075993645@sss.pgh.pa.us
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Josh Berkus <josh(at)agliodbs(dot)com> writes:
> I'm wondering if we need specific compile-time switches for Opteron. I know
> we got Opteron code tweaks in the last version,

Not in 7.4. There is some marginal hacking in the spinlock code in CVS
tip for multi-CPU i386 and x86_64 (viz, add a PAUSE instruction inside
the wait loop) but I'm not sure that will have any significance in real
life.

regards, tom lane

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