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From: Alan Stange <stange@rentec.com>
To: Jignesh K. Shah <J.K.Shah@Sun.COM>
Cc: Juan Casero <caseroj@comcast.net>
Cc: pgsql-performance@postgresql.org
Subject: Re: PostgreSQL and Ultrasparc T1
Date: Tue, 20 Dec 2005 10:01:52 -0500
Message-ID: <43A81CE0.7060805@rentec.com> (raw)
In-Reply-To: <43A7864D.1090400@sun.com>
References: <BB4329D6F8E32046ACFC6631ACA3E7BA18FC4B@koolancexeon.g2switchworks.com>
	<200512191932.25699.caseroj@comcast.net>
	<43A7864D.1090400@sun.com>

Jignesh K. Shah wrote:
> I guess it depends on what you term as your metric for measurement.
> If it is just one query execution time .. It may not be the best on 
> UltraSPARC T1.
> But if you have more than 8 complex queries running simultaneously, 
> UltraSPARC T1 can do well compared comparatively provided the 
> application can scale also along with it.

I just want to clarify one issue here.   It's my understanding that the 
8-core, 4 hardware thread (known as strands) system is seen as a 32 cpu 
system by Solaris. 

So, one could have up to 32 postgresql processes running in parallel on 
the current systems (assuming the application can scale).

-- Alan



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