pmdakvm - Man Page

Linux virtualization performance metrics domain agent (PMDA)

Description

pmdakvm is a Performance Metrics Domain Agent (PMDA) which exports metric values from the Linux KVM (Kernel Virtual Machine) virtualization subsystem.

Per-processor KVM trace metrics from the kernel events enumerated below /sys/kernel/debug/tracing/events/kvm can be configured statically using the pmdakvm configuration file, /etc/pcp/kvm/kvm.conf.

Installation

Optionally configure trace points in the configuration file, then install the KVM PMDA by using the Install script as root:

# cd $PCP_PMDAS_DIR/kvm
# ./Install

To uninstall, do the following as root:

# cd $PCP_PMDAS_DIR/kvm
# ./Remove

pmdakvm is launched by pmcd(1) and should never be executed directly. The Install and Remove scripts notify pmcd(1) when the agent is installed or removed.

Files

$PCP_SYSCONF_DIR/kvm/kvm.conf

configuration file for the pmdakvm agent

$PCP_PMDAS_DIR/kvm/Install

installation script for the pmdakvm agent

$PCP_PMDAS_DIR/kvm/Remove

undo installation script for the pmdakvm agent

$PCP_LOG_DIR/pmcd/kvm.log

default log file for error messages from pmdakvm

PCP Environment

Environment variables with the prefix PCP_ are used to parameterize the file and directory names used by PCP. On each installation, the file /etc/pcp.conf contains the local values for these variables. The $PCP_CONF variable may be used to specify an alternative configuration file, as described in pcp.conf(5).

See Also

PCPIntro(1), pmcd(1) and kvm(1).

Info

PCP Performance Co-Pilot