|
Measures reported by IBMDb2TransTest The
IBMDb2TransTest, executed by an internal agent, tracks various statistics
pertaining to the transactions executing on a DB2 database. The measures
made by this test are as
follows:
| Measurement |
Description |
Measurement
Unit |
Interpretation |
| Commit_rate
|
Indicates the
transaction throughput. This measure is the sum of the committed
statements attempted and internal commits (total number of commits
initiated internally by the database manager) per second. |
Commits/Sec
|
A decrease in
this measure during the monitoring period may indicate that the
applications are not doing frequent commits. This may lead to problems
with logging and data concurrency.
The cause has to be probed in the application.
|
| Rollback_rate
|
Indicates the
rate of unit of work rollbacks. |
Rollbacks/Sec
|
A high rollback
rate is an indicator of bad performance, since work performed up to
the rollback point is wasted. The cause of the rollbacks has to be
probed in the application. |
| Transaction_rate
|
Indicates the
rate of commits and rollbacks for the application using the DB2
Connect gateway. |
Trans/Sec
|
A high
transaction rate with high rollback rate indicates bad performance. |
|