Lazy dbms_job

I am running following procedure ( Oracle 9i ):=20

dbms_job.submit( l_job, 'background_submit_proc( JOB, NEXT_DATE);' );

create or replace

    procedure background_submit_proc( p_job in number, p_NEXT_DATE OUT DATE=   )
    as
    begin

               uui(); -- these are procedures that are executed;
               uui1();=20
               uui2();

=09p_next_date :=3D sysdate + 1/24/60/60*1;

    exception when others then raise;
end;
/

Whole thing runs fine. It modifies NEXT_DATE so it reschedules itself as soon as
3 procedures are finished. Procedures are very fast ( takes less than a second to execute them ). So job's NEXT_DATE should be incremented almost every second.
It is not. It is incremented every 15 seconds.=20 Is there a way to make it more responsive ? I want it to execute every seco= nd .=20

Regards, Ranko.

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