Measures reported by TibTsmTest
This test periodically monitors the space usage of the shared memory, and proactively alerts administrators to excessive space consumption by, or deficiencies in space allocations to, the shared memory.
Outputs of the test : One set of results for each database server being monitored.
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| Total_size |
Indicates the total size of the shared memory space. |
MB |
|
| Used_size |
Indicates the used size of the shared memory space. |
MB |
|
| Free_size |
Indicates the free size of the shared memory space. |
MB |
Ideally, the value of this measurement should be very high. |
| Used_percent |
Indicates the space usage of the shared memory space. |
Percent |
Typically, a low percentage of free space is desired. A value close to 100 or a consistent increase in the value of this measure could indicate excessive space consumption by the shared memory or insufficient space allocation; lack of free space for shared memory can severely affect database performance, and can even cause the database to hang! To avoid such adversities, you might want to consider allocating more space to the shared memory. |
|