calls to kcmgas - cheeyoung/sqlplus-public GitHub Wiki
Table E-1 Database Statistics Descriptions
| Name | Class | Description | TIMED_STATISTICS |
|---|---|---|---|
| Cached Commit SCN referenced | 128 | Useful only for internal debugging purposes | |
| calls to get snapshot scn: kcmgss | 32 | Number of times a snapshot system change number (SCN) was allocated. The SCN is allocated at the start of a transaction. | |
| calls to kcmgas | 128 | Number of calls to routine kcmgas to get a new SCN | |
| calls to kcmgcs | 128 | Number of calls to routine kcmgcs to get a current SCN | |
| calls to kcmgrs | 128 | Number of calls to routine kcsgrs to get a recent SCN | |
| Commit SCN cached | 128 | Number of times the system change number of a commit operation was cached | |
| redo ordering marks | 2 | Number of times that a system change number was allocated to force a redo record to have a higher SCN than a record generated in another thread using the same block | |
| SCN increments due to another database | 128 | SCN increments due to communication with another database |