Availability Guide for Problem Management

Problem Management Tools
Availability Guide for Problem Management–125509
9-14
Measure
Measure
Measure is a data collection and measurement tool that provides a wide range of
performance statistics on system resources. Using Measure, you can gather information
from systems, network components, and your business applications. Then you can use
this data to balance and tune your system, detect bottlenecks, balance workloads, and
perform sizing evaluations for your new applications.
You can also use Measure data for capacity planning. In addition, you can use the
Measure programmatic interface to access a collection of services and build your own
high-level performance tools for activities such as capacity planning, resource
accounting, and load balancing.
How Measure Works
Measurements are taken online in real time. If resources are specified for measurement
and become active after a measurement has started, those resources are automatically
included in the count. When the same resource is designated in more than one
measurement, the data (counter) record for the resource specified in the first
measurement is shared by the second and subsequent measurements.
Measure works with the operating system to determine whether processors selected for
measurement, or those being measured, are up or down. When a processor being
measured halts during a measurement, the Measure monitoring process automatically
reactivates measurement activity in that processor when it is reloaded.
Figure 9-4 illustrates Measure’s architecture.