|
ID |
NUMBER |
Buffer pool ID number |
|
NAME |
VARCHAR2(20) |
Buffer pool name. Possible values: DEFAULT, KEEP, RECYCLE. Note: Currently, KEEP and RECYCLE pools only exist for the standard block size. All non-standard block size pools are DEFAULT. |
|
BLOCK_SIZE |
NUMBER |
Block size in bytes for buffers in this pool. Possible values: the standard block size, the power of 2 non-standard block sizes, 2048, 4096, 8192, 16384, 32768. |
|
RESIZE_STATE |
VARCHAR2(10) |
Current state of the resize operation
STATIC - not being resized
ALLOCATING - memory is being allocated (can be cancelled by the user)
ACTIVATING - new buffers are being created (user cannot cancel)
SHRINKING - buffers are being deleted (can be cancelled by the user) |
|
CURRENT_SIZE |
NUMBER |
Present size of the sub-cache in megabytes |
|
BUFFERS |
NUMBER |
Current instantaneous number of buffers |
|
TARGET_SIZE |
NUMBER |
If a resize is in progress (state is not STATIC), records new target size in megabytes. If the pool is STATIC, the value in this column is the same as the current size of the pool. |
|
TARGET_BUFFERS |
NUMBER |
If a resize is in progress, records new target size in terms of buffers. Otherwise, the value in this column is the same as the current number of buffers. |
|
PREV_SIZE |
NUMBER |
Previous buffer pool size. If the buffer pool has never been resized, the previous size is zero. |
|
PREV_BUFFERS |
NUMBER |
Previous number of buffers in the buffer pool. Value is zero if the buffer pool has never been resized. |
|
LO_BNUM |
NUMBER |
Obsolete column |
|
HI_BNUM |
NUMBER |
Obsolete column |
|
LO_SETID |
NUMBER |
Obsolete column |
|
HI_SETID |
NUMBER |
Obsolete column |
|
SET_COUNT |
NUMBER |
Obsolete column |
