The pmie specification language is powerful and large. To expedite rapid development of pmie rules, the pmieconf(1) tool provides a facility for generating a pmie configuration file from a set of generalized pmie rules. The supplied set of rules covers a wide range of performance scenarios.

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The Performance Metrics Inference Engine (pmie) is a tool that provides automated monitoring of, and reasoning about, system performance within the Performance Co-Pilot (PCP) framework. The major sections in this chapter are as follows: Section 5.1, “ Introduction to pmie ”, provides an introduction to the concepts and design of pmie.

The Performance Metrics Inference Engine (pmie) is the tool within PCP that is designed for automated filtering and reasoning about performance. pmie evaluates a set of assertions against a time-series of performance metric values collected in real-time from PMCD on one or more hosts or from one or more PCP archives.

The Performance Co-Pilot (PCP) suite contains the performance metrics inference engine (PMIE) service. This service evaluates performance rules in real time. For example, you can use the default rules to detect excessive swap activities.

Performance Co-Pilot (PCP) is an open source framework and toolkit for monitoring, analyzing, and responding to details of live and historical system performance. PCP has a fully distributed, plug-in based architecture making it particularly well suited to centralized analysis of complex environments and systems.

pmie accepts a collection of arithmetic, logical, and rule expressions to be evaluated at specified frequencies. The base data for the expressions consists of performance metrics values delivered in real-time from any host running the Performance Metrics Collection Daemon (PMCD), or using historical data from Performance Co-Pilot (PCP) archive ...

Instead, use the pmieconf utility to change variable values in the pmie configuration file. The pmieconf-pmie format allows site specific customizations of the rules contained in pmieconf-rules files and their associated variables. The pmieconf-pmie format is generated by pmieconf and

pmie(1) man page. … metrics. pmie accepts a collection of arithmetic, logical, and rule expressions to be evaluated at specified frequencies. The base data …

As well as computing arithmetic and logical values, pmie can execute actions (popup alarms, write system log messages, and launch programs) in response to specified conditions. Such actions are extremely useful in detecting, monitoring and correcting performance related problems.