Performance data counters

Each resource category (module) has its own set of performance data counters. Those counters have particular properties, for example the rating impact and data type.

A complete list of all performance data counters for each resource category is included in the WAS V5.1 InfoCenter article "Performance data organization". There is a separate table for each resource category. As an example, the ORB counters are shown in Table 16-2.

Table 16-2

Name	Description	Ver-sion	Granularity	Type	Level
reference LookupTime	The time (in milliseconds) to look up an object reference before method dispatch can be carried out	5.0	ORB	Time Statistic	Medium
numRequest	The total number of requests sent to the ORB	5.0	ORB	Count Statistic	Low
concurrent Requests	The number of requests that are concurrently processed by the ORB	5.0	ORB	Range Statistic	High
processing Time	The time (in milliseconds) it takes a registered portable interceptor to run	5.0	per interceptor	Time Statistic	Medium

Counter information for ORB service PMI Client package

In Table 16-2: Version refers to the version of WAS when the counter was introduced into the PMI framework. Granularity refers to the unit to which data collection is applied for that counter. Type refers to the performance data classification as described in 16.2.1, Performance data classification. Level refers to the instrumentation level for which this counter is included. We will cover instrumentation levels in 16.2.4, Instrumentation levels.

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