eG Monitoring
 

Measures reported by SqlAzuWaitStTest

In Microsoft SQL Azure database server, wait types represent the discrete steps in query processing, where a query waits for resources as the instance completes the request. By analyzing wait types and their wait times, administrators can receive quick and objective evidence of performance bottlenecks and their probable causes. The SqlAzuWaitStTest test enables this analysis. For every type of wait that is currently experienced by the server, this test reports the number, nature, and duration of waits, thereby leading you to the specific wait types that may have contributed to a general slowdown/deterioration in server performance.

Outputs of the test : One set of results for every type of wait on the target Microsoft SQL Azure Database server being monitored.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
Tasks_maximum_wait_time Indicates the maximum time taken for a wait of this task type during the last measurement period. Seconds Use the detailed diagnosis of this measure to figure out the tables that are consuming the maximum disk space.
Tasks_signal_wait_time Indicates the total signal wait time (across wait types) during which wait events of this type waited for a signal. Seconds The signal wait is the time between when a worker has been granted access to the resource and the time it gets scheduled on the CPU. A high value for this measure may imply a high CPU contention. To know which wait type registered the highest signal wait time and probably caused the CPU contention, compare the value of this measure across wait types.
Tasks_wait_time Indicates the total wait time (across wait types) during which wait events of this type occurred during the last measurement period. Seconds When a user complaints that query execution takes too long, you can compare the value of this measure across wait types to know which type of wait is the key contributor to delays in query processing.  
Waiting_tasks_count Indicates the number of waits of this task type during the last measurement period. Number This counter is incremented at the start of each wait.