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Re: Large (8M) cache vs. dual-core CPUs

From: Ron Peacetree <rjpeace(at)earthlink(dot)net>
To: david_list(at)boreham(dot)org, pgsql-performance(at)postgresql(dot)org
Subject: Re: Large (8M) cache vs. dual-core CPUs
Date: 2006-04-25 21:43:14
Message-ID: 26758313.1146001394944.JavaMail.root@elwamui-mouette.atl.sa.earthlink.net (view raw or flat)
Thread:
Lists: pgsql-performance
I've had intermittent "freeze and reboot" and, worse, just plain freeze problems with the Core Duo's I've been testing.  I have not been able to narrow it down so I do not know if it is a platform issue or a CPU issue.  It appears to be HW, not SW, related since I have experienced the problem both under M$ and Linux 2.6 based OS's.  I have not tested the Core Duo's under *BSD.

Also, being that they are only 32b Core Duo's have limited utility for a present day DB server.

Power and space critical applications where 64b is not required may be a reasonable place for them... ...if the   
present reliability problems I'm seeing go away.

Ron


-----Original Message-----
>From: David Boreham <david_list(at)boreham(dot)org>
>Sent: Apr 25, 2006 5:15 PM
>To: pgsql-performance(at)postgresql(dot)org
>Subject: Re: [PERFORM] Large (8M) cache vs. dual-core CPUs
>
>
>>My personal favorite pg platform at this time is one based on a 2 socket, dual core ready mainboard with 16 DIMM slots combined with dual core AMD Kx's.
>>  
>>
>Right. We've been buying Tyan bare-bones boxes like this.
>It's better to go with bare-bones than building boxes from bare metal
>because the cooling issues are addressed correctly.
>
>Note that if you need a large number of machines, then Intel
>Core Duo may give the best overall price/performance because
>they're cheaper to run and cool.
>

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