V$BUFFER_POOL_STATISTICS

V$BUFFER_POOL_STATISTICS displays statistics about all buffer pools available for the instance.

Column	Datatype	Description
`ID`	`NUMBER`	Buffer pool identifier number
`NAME`	`VARCHAR2(20)`	Name of the buffer pool
`BLOCK_SIZE`	`NUMBER`	Block size (in bytes) for buffers in this pool. Possible values: the standard block size, the power of 2 nonstandard block sizes, `2048`, `4096`, `8192`, `16384`, `32768`.
`SET_MSIZE`	`NUMBER`	Buffer pool maximum set size
`CNUM_REPL`	`NUMBER`	Number of buffers on replacement list
`CNUM_WRITE`	`NUMBER`	Number of buffers on write list
`CNUM_SET`	`NUMBER`	Number of buffers in set
`BUF_GOT`	`NUMBER`	Number of buffers gotten by the set
`SUM_WRITE`	`NUMBER`	Number of buffers written by the set
`SUM_SCAN`	`NUMBER`	Number of buffers scanned in the set
`FREE_BUFFER_WAIT`	`NUMBER`	Free buffer wait statistic
`WRITE_COMPLETE_WAIT`	`NUMBER`	Write complete wait statistic
`BUFFER_BUSY_WAIT`	`NUMBER`	Buffer busy wait statistic
`FREE_BUFFER_INSPECTED`	`NUMBER`	Free buffer inspected statistic
`DIRTY_BUFFERS_INSPECTED`	`NUMBER`	Dirty buffers inspected statistic
`DB_BLOCK_CHANGE`	`NUMBER`	Database blocks changed statistic
`DB_BLOCK_GETS`	`NUMBER`	Database blocks gotten statistic
`CONSISTENT_GETS`	`NUMBER`	Consistent gets statistic
`PHYSICAL_READS`	`NUMBER`	Physical reads statistic
`PHYSICAL_WRITES`	`NUMBER`	Physical writes statistic
`CON_ID`	`NUMBER`	The ID of the container to which the data pertains. Possible values include: `0`: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs. `1`: This value is used for rows containing data that pertain to only the root n: Where n is the applicable container ID for the rows containing data