V$REDO_DEST_RESP_HISTOGRAM

V$REDO_DEST_RESP_HISTOGRAM provides statistical information for each redo transport destination.

Column	Datatype	Description
`DEST_ID`	`NUMBER`	A non-negative integer value from 1 - 10 for each possible `LGWR` `SYNC` standby destination
`TIME`	`VARCHAR2(20)`	A text string that shows the last wall-clock time that a bucket was hit
`DURATION`	`NUMBER`	A positive integer value that represents a bucket of seconds, 1, 2, 3, up to 300 seconds, followed by 5 additional buckets that represent 600, 1200, 2400, 4800, and 9600 ( >= 4801) seconds
`FREQUENCY`	`NUMBER`	A non-negative integer that shows the number of times a particular bucket was hit by the `SYNC` `LNS` process