Subject Re: [firebird-support] IBO, DataPump and Xeon with HT
Author Daniel Rail

At September 11, 2003, 11:10, Marco Lauria wrote:
> I did another test,
> I run the datapump process from a pc over the network
> using the Xeon Hyperthreaded PCs as a server
> and everything runs smoothlessy
> so I am really really confused....
> if it's a FB related problem the problem should persist even if my software
> is running over the network isn't it?
> Also if CPU_AFFINITY doesn't work on single Xeons with HT Enabled
> this should be mentioned in release notes....
> Also I spoke with Geoff Worboys the creator of DBAK Components
> and he has no problems at all with a Dual Xeon with HT Enabled using CPU
> Affinity....

There has been a fix in FB 1.5RC6 in relations to SS client and thread
safety. Read the description below:
* Fixed RC5 bug.
Thread-safety issues in the SS client library and Windows CS
listener process

Try RC6 to see if the problem persists.

Best regards,
Daniel Rail
Senior System Engineer
ACCRA Group Inc. (
ACCRA Med Software Inc. (