Hi!

> Dear Friends.
>
> FirebirdSQL : 2.5.5 64bits
> Operating System: Windows 2008 R2 Enterprise 64bits
> Server : Dell Poweredge R620
> 32GB
> 2 processors E5-2609 2.40 GHz
> 8 Cores
>
> To define CPU Affinity in firebird.conf I set CPUAffinity to 255, in a
> way to use all the 8 cores.

Which Firebird server architecture are you using? CPU affinity is only for SuperServer and the question is why do you bother with SuperServer on a multi-core machine when there is Classic or SuperClassic available?



--
With regards,
Thomas Steinmaurer
http://www.upscene.com

Professional Tools and Services for Firebird
FB TraceManager, IB LogManager, Database Health Check, Tuning etc.

> Does it make sense or could be better to use less cores, like core
> 5,6,7,8 or 3,4,5,6?
>
> --
>
>
> Atenciosamente,
>
> Hugo Eyng
>
>
>
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