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From: Arjen van der Meijden <acmmailing@tweakers.net>
To: Robert Lor <Robert.Lor@Sun.COM>
Cc: pgsql-hackers@postgresql.org
Cc: pgsql-performance@postgresql.org
Subject: Re: Sun Donated a Sun Fire T2000 to the PostgreSQL community
Date: Sat, 17 Jun 2006 00:34:20 +0200
Message-ID: <449331EC.10207@tweakers.net> (raw)
In-Reply-To: <4492CBE2.3090509@sun.com>
References: <4492CBE2.3090509@sun.com>

On 16-6-2006 17:18, Robert Lor wrote:
> 
> I think this system is well suited for PG scalability testing, among 
> others. We did an informal test using an internal OLTP benchmark and 
> noticed that PG can scale to around 8 CPUs. Would be really cool if all 
> 32 virtual CPUs can be utilized!!!

I can already confirm very good scalability (with our workload) on 
postgresql on that machine. We've been testing a 32thread/16G-version 
and it shows near-linear scaling when enabling 1, 2, 4, 6 and 8 cores 
(with all four threads enabled).

The threads are a bit less scalable, but still pretty good. Enabling 1, 
2 or 4 threads for each core yields resp 60 and 130% extra performance.

Best regards,

Arjen



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