Hi Ichiro ,

>> Dear All, I would like to ask the CpuAffinityMask setting

This setting says that "make sure that Firebird ONLY ever runs on this
CPU. Do not allow the OS to schedule Firebird onto any other CPU in
order to balance the load."

The reason being that under windows, swapping CPUs introduces a quite
sever performance penalty. Especially as normally, the load balancer
decides to switch Firebird to another CPU almost as soon as it gets to
the new one!

>> So, if I have quad CPU and I 'd like to use all of them then what
>> should I set the number of CpuAffinityMask ?

Pick a number between 1 and 4, and run on one core only is best.


Cheers,
Norman.

Norman Dunbar
Dunbar IT Consultants Ltd
Tel: 0779 3292 984
Tel: 0773 4531 439

Registered address:
Thorpe House
61 Richardshaw Lane
Pudsey
West Yorkshire
United Kingdom
LS28 7EL

Company Number: 05132767


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