Re: Big SGA.......

A late-breaking thought - but it's not my area of expertise, so others may laugh.

If you have a very large SGA, don't you end up with a very large 'page table' at the O/S level to map virtual memory to real memory. And if you do, doesn't this affect the speed and cost of a context switch. If so, you may waste a lot of resources task-switching rather than working - especially if you system is designed to do a very large number of very small queries.

Any comments from Unix hot-shots ?

Regards

Jonathan Lewis
http://www.jlcomp.demon.co.uk

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• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: 04 March 2003 13:38

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