Re: hardware advice - Mailing list pgsql-performance

From David Boreham
Subject Re: hardware advice
Date
Msg-id 5064C506.9090205@boreham.org
Whole thread Raw
In response to Re: hardware advice  (Claudio Freire <klaussfreire@gmail.com>)
Responses Re: hardware advice  (Scott Marlowe <scott.marlowe@gmail.com>)
List pgsql-performance
On 9/27/2012 3:16 PM, Claudio Freire wrote:
> Careful with AMD, since many (I'm not sure about the latest ones)
> cannot saturate the memory bus when running single-threaded. So, great
> if you have a high concurrent workload, quite bad if you don't.
>
Actually we test memory bandwidth with John McCalpin's stream program.
Unfortunately it is hard to find stream test results for recent machines so it can be hard to compare two boxes unless
youown examples, so I didn't mention it as a useful option. But if you can find results for the machines, or ask a
friendto run it for you...definitely useful information. 






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