getStatistics(jdo: JadeDynamicObject input);
The
The calling process is responsible for creating and deleting the
The properties returned in the JadeDynamicObject are listed in the following table.
| Property | Description |
|---|---|
| logicalReads | The total number of read requests |
| logicalWrites | The total number of write requests |
| logicalReadBytes | The total accumulated size for all read requests |
| logicalWriteBytes | The total accumulated size for all write requests |
| physicalReads | The actual number of file read operations |
| physicalWrites | The actual number of file write operations |
| physicalReadBytes | The actual accumulated size for all file read operations |
| physicalWriteBytes | The actual accumulated size for all file write operations |
The logical counts record the number and size of requests that can be serviced in cache, whereas the physical counts record actual disk activity.
The returned values include cumulative counters, which are not reset during the lifetime of the database server node. To work out the differences, you must compare values from one execution of the
Properties are added to the object when the method is first called. The object can then be used in subsequent calls.
If the dynamic object passed to the method already contains properties that do not match the properties to be returned, the existing dynamic object properties are removed and replaced with the appropriate properties. This method is most efficient when the properties match those to be returned.
For examples of the use of and output from this method, see the