I made addmrpt. The result was:
The SGA was inadequately sized, causing additional I/O or hard parses.
RECOMMENDATION 1: DB Configuration, 34% benefit (2828 seconds)
ACTION: Increase the size of the SGA by setting the parameter
"sga_target" to 16384 M.
ADDITIONAL INFORMATION:
The value of parameter "sga_target" was "8192 M" during the analysis
period.
SYMPTOMS THAT LED TO THE FINDING:
SYMPTOM: Wait class "User I/O" was consuming significant database time.
(24% impact [1938 seconds])
Need I increase the size of sga_target or not?
Edited by: user11923386 on 11.05.2013 19:51
Edited by: user11923386 on 11.05.2013 20:02