IBM BPM, V8.0.1, All platforms > Measuring and improving business processes > Monitoring > Enabling and configuring service component monitoring > Monitoring performance > Application Response Measurement statistics for the Service Component Architecture

Asynchronous callback with asynchronous implementation

Application Response Measurement (ARM) statistics are available for callback requests and callback executions using different threads with an asynchronous implementation


Parameters

Event monitoring for SCA components includes the event points that are shown in black , while the event points shown in blue are used only to calculate and fire PMI/ARM statistics.

In Table 1 and Figure 1, the "current" ARM transaction (denoted as X 1) is created when the calling service component was invoked for the first time.

If the caller is not a service component, the current ARM transaction is used, or a new one is created. If it is not the starting transaction it has a parent, as represented in the following table and diagram with the notation X n.X n+1. The notation is used to show the transaction lineage. Every SCA invocation starts a new transaction, which is parented by the current transaction of the caller. You can create new transactions and you can access the current transaction, but you cannot modify the SCA transaction lineage.

Invocation of request and return result
Type Statistics Formula ARM Transaction
Common TotalResponseTime t 2 - t 0 X 0.X 1
RequestDeliveryTime t' 0 - t 0 X 1.X 2
ResponseDeliveryTime t 2 - t' 2
GoodRequests Count EXIT
BadRequests Count FAILURE
ResponseTime t' 3 - t' 0
Reference A GoodRefRequest Count EXIT X 0.X 1
BadRefRequests Count FAILURE
RefResponseTime t 1 - t 0
Target A GoodTargetSubmit Count EXIT X 1.X 2
BadTargetSubmit Count FAILURE
TargetSubmitTime t' 1 - t' 0

Figure 1. An asynchronous callback with an asynchronous implementation

Invocation of callback
Type Statistics Formula ARM Transaction
Reference B GoodCBSubmit Count EXIT X 1.X 2
BadCBSubmit Count FAILURE
CBSubmitTime t' 3 - t' 2
Target B GoodCB Count EXIT X 0.X 1
BadCB Count FAILURE
CBTime t 3 - t 2

Application Response Measurement statistics for the Service Component Architecture