Lists the InnoDB Insert Buffer Activity metrics and provides a brief description of each.
Table 4.10 InnoDB Insert Buffer Activity Metrics
| Name | Description | 
|---|---|
| Delete Discarded (Delta) | The total number of purge merged operations discarded. | 
| Delete Mark Discarded (Delta) | The total number of deleted merged operations discarded. | 
| Delete Mark Merges (Delta) | The total number of deleted records merged by change buffering. | 
| Delete Merges (Delta) | The total number of times the InnoDB secondary index delete buffer was merged to the InnoDB datafiles. | 
| Free List Len (Total) | The number of pages free within the InnoDB secondary index insert buffer. | 
| Inserts (Delta) | The total number of inserts to the InnoDB secondary index insert buffer. | 
| Inserts Discarded (Delta) | The total number of insert merged operations discarded | 
| Merged Recs (Delta) | The total number of records merged from the InnoDB secondaryindex insert buffer to the InnoDB datafiles. | 
| Merges (Delta) | The total number of times the InnoDB secondary index insert buffer was merged to the InnoDB datafiles. | 
| Seg Size (Total) | The total size, in pages, of the InnoDB secondary index insert buffer. | 
| Size (Total) | The number of pages used within the InnoDB secondary index insert buffer. |