Service Level Analysis workspace
The predefined Service Level Analysis workspace shows the overall performance of each service class defined within a workload. A high percentage of time spent for different types of waits can indicate potential problem areas. It also shows the response times for each service class.
The predefined Service Level Analysis workspace contains the following views:
- The Service Level Analysis table view
- The CICS® Service Class Response Time bar chart
Each table row in the Service Level Analysis table view contains summary information about a service class for the collection interval that falls within the reported time span. If the reported time span includes multiple collection intervals for a service class, each interval is reported separately. For each service class entry, the default analysis includes this data:
- Service class name
- Collection interval end date and time
- Response time goal, including the percent of goal, where appropriate
- The number of completed transactions
- Performance data, such as average response time, performance index, and percent-of-goal information
The Service Level Analysis workspace normally classifies a transaction into a single service class. You also have the ability to classify a CICS transaction into multiple service classes.
When you specify the SCLASS=ALL
parameter
on the Workload Manager start command, each transaction is matched
against all of the available classification rules. The KC5_WLM_CLASSIFY
parameter
in PARMGEN is used to set this value. The WLM
service classification input field is displayed on the Specify
Configuration Parameters panel of the Configuration Tool.
Attempting to classify transactions into multiple service classes results in extra central processing unit (CPU) resource consumption. The amount of CPU usage is heavily dependant upon the number of service classes, the number and complexity of classification rules defined, and the number of CICS transactions to be classified. The activation of this feature merits careful consideration.
The Service Level Analysis table view displays data provided by the CICSplex Service Class Analysis attribute group.
See also: