Instance Efficiency Percentages

Buffer Hit %

Hit ratio of the buffer pool.

Effective CPU %

Ratio of the CPU time to the DB time.

WalWrite NoWait %

Ratio of the number of events that access the WAL buffer to the total number of wait events.

Soft Parse %

Ratio of the number of soft parsing times to the total number of parsing times.

Non-Parse CPU %

Ratio of the non-parse time to the total execution time.