RE: Physical I/O and databases other than oracle

According to one recently published source*, in a well-tuned database system, the server should be CPU-limited. The reasoning here is that in a perfectly tuned system, the other bottlenecks of I/O, network, etc. have been eliminated, so the system is then limited by the speed and number of CPUs.

This is an ideal system, of course, and we all know that it is common to have less than ideal numbers of disks or I/O controllers to spread the load.

• "The Art and Science of Oracle Performance Tuning", Christopher Lawson, 2003, p.184.

Best regards,

David B. Wagoner
Database Administrator
Arsenal Digital Solutions
Web: http://www.arsenaldigital.com

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