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I may be wrong here, but the pre-emptive option allows the resource manager to pre-emptively switch your resource group if it thinks you are going to be too greedy, rather than switching you after you have proved to be too greedy. Is there an option to block execution completely ?
The problem that I've found with resource manager is that the CPU scheduling method is very lenient - it only restricts your CPU usage when the resource is dramatically overloaded. So I have engineered cases where the demand on CPU is 200%, but two 'low resource' users still manage to get almost as much CPU as two 'high resource' users (specifically on 80/20 CPU2 values).
-- Jonathan Lewis http://www.jlcomp.demon.co.uk Next Seminars UK Sept Australia August Malaysia September USA x 2 November http://www.jlcomp.demon.co.uk/seminar.html Richard Foote wrote in message ...Received on Sun Jul 21 2002 - 06:02:26 CDT
>Hi Pete,
>
>No, I think this could be very useful. This restriction kicks in
>"immediately" in that it will prevent an expensive SQL from executing,
>regardless of current CPU usage. This means you can proactively prevent
>expensive code that could hurt your CPU performance from ever running.
>
>It might not be exactly what Red was after but it might be worth
>investigating.
>
>Cheers
>
>Richard