tune( option, value ) - switch on any option immediately without
having to reboot the SQL Server. Switches correspond to the old
(pre-System 11) buildmaster -yall minus the c prefix
For example option may be:
- indextrips
- oamtrips
- datatrips
- schedspins
- bufwashsize
- sortbufsize
- sortpgcount
- maxscheds
- max_retries