введение в библиотеку поддержки агента домена Performance Metrics (introduction to the Performance Metrics Domain Agent support library)
Описание (Description)
To assist in the development of Performance Metric Domain Agents
(PMDAs) for the Performance Co-Pilot (PCP), a procedural
interface is provided that extends the Performance Metrics
Application Programming Interface (PMAPI(3)) library. These
procedures are designed to enable a programmer to quickly build a
PMDA which can then be tested and refined. However, this also
implies that a PMDA has a particular structure which may not be
suitable for all PMDA implementations.
Once you are familiar with the PCP and PMDA frameworks, you can
quickly implement a new PMDA with only a few data structures and
functions. This is covered in far greater detail in the
Performance Co-Pilot Programmer's Guide.
A PMDA is responsible for a set of performance metrics, in the
sense that it must respond to requests from pmcd(1) for
information about performance metrics, instance domains, and
instantiated values.
This man page contains sections of the simple PMDA which is
located at $PCP_PMDAS_DIR/simple.
