Weaknesses of orachk 12.1.0.2.6

I have executed orachk on one of our database servers and it shows some weaknesses:

 

-> Check: Consider investigating the frequency of SGA resize operations

 

Status on DB1:

WARNING => Consider investigating the frequency of SGA resize operations and take corrective action

 

COMPONENT                 OPER_TYPE       COUNT(1)                                       

------------------------- ------------- ----------                                       

DEFAULT buffer cache      SHRINK                 1                                       

shared pool               GROW                   1                                       

 

 

In my opinion, when resize ops is 1, this is not necessarily a high frequency. (Threshold of > 0 seems to low for this warning)

 

-> Check: Consider investigating the sessions that are currently waiting and take necessary action

 

SID: 97                                       WAITING         Wait Event: Streams AQ: waiting for messages in the queue                    Waiting(seconds): 2