Subject Re: [firebird-support] Firebird performance on Dual Core machine
Author Helen Borrie
At 09:56 PM 1/01/2006 +0700, you wrote:
>Hello firebird-support,
> I just want to know, is it true that the performance of firebird will
>be drop if it used on dual core machine? I'm talking about AMD Dual
>core or something but not Intel's Hyperthreading.

Yes, it's true for the Superserver version, but not for Classic.

With SS you should keep the CPU affinity to one CPU. By default, the value
(a bitmask) is 1, which sets the affinity to CPU 0. Read the release notes
and the notes in Firebird.conf. The release notes provide the algorithm
for calculating the CPU affinity bitmask.