CPU usage statistics (CPU Time)

CPU usage is important for response time analysis.
Response Time = Service Time + Wait Time.
Service Time = CPU Parse Time/CPU Recursive Time/CPU Other
If CPU usage shows large response time, the database should be tuned according to CPU usage.

Query show the CPU time utilization by the database since last startup of database.

CPU-Time

Select
          name,
          value
from   v$sysstat
where upper (name) like '%CPU%';
CPU statistics from v$sysstat, database 9i R2