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pmdalinux(1) [centos man page]

KERNEL 
PMDAS(1) General Commands Manual KERNEL PMDAS(1) NAME
pmdaaix, pmdadarwin, pmdafreebsd, pmdalinux, pmdanetbsd, pmdasolaris, pmdawindows - operating system kernel performance metrics domain agents SYNOPSIS
$PCP_PMDAS_DIR/aix/pmdaaix [-d domain] [-l logfile] [-U username] $PCP_PMDAS_DIR/darwin/pmdadarwin [-d domain] [-l logfile] [-U username] $PCP_PMDAS_DIR/freebsd/pmdafreebsd [-d domain] [-l logfile] [-U username] $PCP_PMDAS_DIR/linux/pmdalinux [-d domain] [-l logfile] [-U username] $PCP_PMDAS_DIR/netbsd/pmdanetbsd [-d domain] [-l logfile] [-U username] $PCP_PMDAS_DIR/solaris/pmdasolaris [-d domain] [-l logfile] [-U username] $PCP_PMDAS_DIR/windows/pmdawindows [-d domain] [-l logfile] [-U username] DESCRIPTION
Each supported platform has a kernel Performance Metrics Domain Agent (PMDA) which extracts performance metrics from the kernel of that platfrom. A variety of platform-specific metrics are available, with an equally varied set of access mechanisms - typically this involves special system calls, or reading from files in kernel virtual filesystems such as the Linux sysfs and procfs filesystems. The platform kernel PMDA is one of the most critical components of the PCP installation, and must be as efficient and reliable as possible. In all installations the default kernel PMDA will be installed as a shared library and thus executes directly within the pmcd(1) process. This slightly reduces overheads associated with querying the metadata and values associated with these metrics (no message passing is required). Unlike many other PMDAs, the kernel PMDA exports a number of metric namespace subtrees, such as kernel, network, swap, mem, ipc, filesys, nfs, disk and hinv (hardware inventory). Despite usually running as shared libraries, most installations also include a stand-alone executable for the kernel PMDA. This is to aid profiling and debugging activities, with dbpmda(1) for example. In this case (but not for shared libraries), the following command line options are available: -d It is absolutely crucial that the performance metrics domain number specified here is unique and consistent. That is, domain should be different for every PMDA on the one host, and the same domain number should be used for the same PMDA on all hosts. -l Location of the log file. By default, a log file named [platform].log is written in the current directory of pmcd(1) when pmda[plat- form] is started, i.e. $PCP_LOG_DIR/pmcd. If the log file cannot be created or is not writable, output is written to the standard error instead. -U User account under which to run the agent. The default is the unprivileged "pcp" account in current versions of PCP, but in older versions the superuser account ("root") was used by default. INSTALLATION
Access to the names, help text and values for the kernel performance metrics is available by default - unlike most other agents, no action is required to enable them and they should not be removed. FILES
$PCP_PMDAS_DIR/[platform]/help default help text file for the the kernel metrics $PCP_LOG_DIR/pmcd/pmcd.log default log file for error messages and other information from the kernel PMDA. 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 configura- tion file, as described in pcp.conf(5). SEE ALSO
PCPIntro(1), dbpmda(1) pmcd(1), pcp.conf(5) and pcp.env(5). Performance Co-Pilot PCP KERNEL PMDAS(1)

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PMDALMSENSORS(1)					      General Commands Manual						  PMDALMSENSORS(1)

NAME
pmdalmsensors - Linux hardware monitoring performance metrics domain agent (PMDA) SYNOPSIS
$PCP_PMDAS_DIR/lmsensors/pmdalmsensors [-d domain] [-l logfile] [-U username] DESCRIPTION
pmdalmsensors is a Performance Metrics Domain Agent (PMDA) which extracts performance metrics describing the state of hardware using the lm-sensors on compatible motherboards. The lmsensors PMDA exports metrics that measure fan speeds, core temperatures and voltage levels. A brief description of the pmdalmsensors command line options follows: -d It is absolutely crucial that the performance metrics domain number specified here is unique and consistent. That is, domain should be different for every PMDA on the one host, and the same domain number should be used for the same PMDA on all hosts. -l Location of the log file. By default, a log file named lmsensors.log is written in the current directory of pmcd(1) when pmdalmsen- sors is started, i.e. $PCP_LOG_DIR/pmcd . If the log file cannot be created or is not writable, output is written to the standard error instead. -U User account under which to run the agent. The default is the unprivileged "pcp" account in current versions of PCP, but in older versions the superuser account ("root") was used by default. INSTALLATION
If you want access to the names, help text and values for the lmsensors performance metrics, do the following as root: # cd $PCP_PMDAS_DIR/lmsensors # ./Install If you want to undo the installation, do the following as root: # cd $PCP_PMDAS_DIR/lmsensors # ./Remove pmdalmsensors 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_PMCDCONF_PATH command line options used to launch pmdalmsensors $PCP_PMDAS_DIR/lmsensors/help default help text file for the lmsensors metrics $PCP_PMDAS_DIR/lmsensors/Install installation script for the pmdalmsensors agent $PCP_PMDAS_DIR/lmsensors/Remove undo installation script for the pmdalmsensors agent $PCP_LOG_DIR/pmcd/lmsensors.log default log file for error messages and other information from pmdalmsensors 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 configura- tion file, as described in pcp.conf(5). SEE ALSO
PCPIntro(1), pmcd(1), pcp.conf(5) and pcp.env(5). Performance Co-Pilot PCP PMDALMSENSORS(1)
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