> > db.socket.setReceiveBufferSize(16 * 1024);
> > db.socket.setSendBufferSize(16 * 1024);
> Well, Roman, things look to be harder -
> I recompiled driver with your corrections but figures did not
> changed.

Ok, I will experiment with Firebird and driver to find out if the
reason is in driver, server or operating system. This might take some
time.

Best regards,
Roman Rokytskyy