This section includes the following topics:

About Tier entities and metrics

With Insight, you can examine the performance of various business applications and their accompanying components and Tiers. For each Tier, the Tier area provides a slightly different performance perspective which reflects the differences between the Tiers. For each Tier, the graphs in the Tier area compare the performance of entities that are related to the Tier.

When you examine the response time, each graph breaks the response time down into the various Tier states to help identify the nature of the problem. This breakdown is also Tier-dependent.

About entities for OS

OS displays information on the following entities:

About server identifiers

For OS, the Tier area displays the following information for each server:

The Insight Savvy for OS has the capability to compare server’s resource utilization by logical CPUs. Insight Savvy for OS enumerates in each time slice the list of logical CPUs that the server is working on and samples several key metrics per CPU.

The following table shows the available metrics.

The term logical CPU is platform specific and refers to the logical representation of a processor by the OS to the running processes. On some platforms it may relate to several physical processors, several processor cores, or part of one physical processor.

About process identifiers

For OS, the Tier area displays the following information for each process:

About Citrix identifiers

Citrix-related statistical counters are collected by the Insight Savvy for OS by using the public Citrix API. Insight uses this information to correlate Citrix metrics with the processes underlying each Citrix session.

The following information is displayed for each process that has been initiated by a Citrix session on the monitored server:

About entities of the Tuxedo Tier

For the Tuxedo Tier, Insight measures the response time of the following entities:

The response time is broken down into the following components:

Network time is the round-trip network time between the client and the server. It is only available on the Overview tab and in the Tier area for the Network Tier. To measure network time, you must enable the network-monitoring option.

For additional information, see the Precise Installation Guide.

About entities of the WebSphere MQ Tier

For the WebSphere MQ Tier, Insight measures the response time of the following entities:

For additional information, see the Precise Administration Guide.

The response time is broken down into the following components:

Network time is the round-trip network time between the client and the server. It is only available on the Overview tab and in the Tier area for the Network Tier. To measure network time, you must enable the network-monitoring option.

For additional information, see the Precise Installation Guide.

About entities of the Oracle Applications Tier

For the Oracle Applications Tier, Insight measures the response time of the following entities:

The response time includes the processing time of Oracle Applications client requests, such as application logic and database access.

Network time is the round-trip network time between the client and the application server. Network time and packets are not available for Oracle Applications instances, which are configured to work in Forms Listener Servlet mode.

About entities of the Other Tier

The entities displayed for the Other Tier depend on the Other Tier type (a standard regular Other Tier, or Citrix type) as defined in the Application dialog box in AdminPoint.

For the standard regular Other Tier, Insight measures the response time of the following entities:

The response time includes the server work time, which is the processing time of the original service.

Network time is the round-trip network time between the client and the server. It is only available on the Overview tab and in the Tier area for the Network Tier.

The statistical counters Network Bytes in MegaBytes [M] and TCP Packets in Kilo packets [K] are available. For the Citrix type Other Tier, Insight measures the response time of the following entities:

For the Citrix type Other Tier, Insight also measures CPU utilization and average Citrix client latency for the following entities:

About entities of the Add-on Tier

A user or third-party vendor can collect performance data from any Tier. The Tier does not need to be supported natively by any of the Precise family of products. That means the user or third-party vendor can define an Tier: the Tier name, its entities and counters, and develop the Collector that collects this data. The Insight user interface functions the same as for all other Precise Tiers.

For an Add-on Tier, Insight can measure the following metrics for Add-on Tier activities:

The response time can be broken down into various components, such as:

Insight displays the metrics for the Add-on Tier as Top n graphs grouped by the various entities (attributes). The Add-On Tier Collector reports the metrics for each activity. For example, if each Add-on Tier activity contains information about a Transaction name, User name and Server, then Insight will display Top Transactions, Top Users, and Top Server graphs.

For additional information, see the Precise Insight SDK User's Guide.

About Network-related entities

When Network is selected, the Tier area shows summary information for all Tiers in your application that are installed and integrated with the Insight Savvy for Network.

The summary information includes the following data: