NAME¶

pmID_build, pmID_domain, pmID_cluster, pmID_item - helper methods for manipulating PMIDs

C SYNOPSIS¶

#include <pcp/pmapi.h>

pmID pmID_build(unsigned int domain, unsigned int cluster, unsigned int item);
unsigned int pmID_domain(pmID pmid);
unsigned int pmID_cluster(pmID pmid);
unsigned int pmID_item(pmID pmid);

cc ... -lpcp

DESCRIPTION¶

Within the Performance Co-Pilot (PCP) each metric is assigned a unique Performance Metric Identifier (pmID). Internally a pmID is constructed from 3 fields: the domain number (of the associated Performance Metrics Domain Agent, or PMDA), the cluster number and the item number (the last two are assigned by the PMDA).

pmID_build constructs a pmID from domain, cluster and item.

pmID_domain, pmID_cluster and pmID_item return the respective fields from pmid.

SEE ALSO¶

PMAPI(3) and pmIDStr(3).