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pmdaib(1) [centos man page]

PMDAIB(1)						      General Commands Manual							 PMDAIB(1)

NAME
pmdaib - Infiniband performance metrics domain agent (PMDA) SYNOPSYS
$PCP_PMDAS_DIR/infiniband/pmdaib [-c configFile] [-D debug] [-d domain] [-l logfile] [-w] DESCRIPTION
pmdaib is a Performance Metrics Domain Agent (PMDA) which exports information and performance metrics about local Infiniband HCAs and local or remote Infiniband GUIDs. A brief description of the pmdaib command line options follows: -c Location of the config file. By default, the config file is named $PCP_PMDAS_DIR/infiniband/config. See CONFIG FILE for more infor- mation. -D A debug values, as specified by pmdbg (1) -d Specify an alternate performance metrics domain number. Almost never necessary. -l Location of the log file. By default, a log file named ib.log is written to $PCP_LOG_DIR/pmcd. If the log file cannot be created or is not writable, output is written to the standard error instead. -w Write out the default config file to $PCP_PMDAS_DIRS/infiniband and exit immediately. The written config file will contain the local HCA ports. It will not overwrite an existing file. This argument should only be used to create the template config file and should never appear in pmcd.conf. See CONFIG FILE for more information on the file format and on monitoring remote GUIDs. CONFIG FILE
By default, the PMDA will operate without using a config file. In this mode of operation the local HCA ports will be monitored. Note that if a new HCA is added to the machine that instance domain naming may change because it will always be based on the kernel's naming. In cases where this is not acceptable, or in the case where monitoring remote Infiniband ports is required, a config file must be created. A "template" file can be created by running the pmdaib daemon with the -w argument. This will create a config file with the local ports and GUIDs. If the config file is executable then it will be run and the output will be used as the config file. The config file is composed of line-based records. Blank lines and everything after the hash (#) character are ignored. Each line has 6 fields: [instName] [portGUID] [portNum] via [localPortName]:[localPortNum] The first field is used to give a static instance name to the Infiniband port that has a specific GUID. All of the other fields must be properly specified in order to monitor a particular port. For example, to monitor port 1 of the local HCA called 'mthca0' a possible config file line would be: myPort1 0xdeadbeef01234567 1 via mthca0:1 Remote ports can be easily monitored by specifying the GUID of the HCA or switch and specifying the remote port number. The localPort- Name:localPortNum tuple specifies which local HCA and port to use as the "first hop" in contacting the remote GUID. E.g., to monitor port 13 of a remote switch which is connected to the fabric on the first port of the second HCA: switch13 0xfeeffeefabcdabcd 13 via mthca1:1 LOCAL CONTEXT
The Infiniband pmda also supports accessing the metrics via PM_CONTEXT_LOCAL when using the PMAPI interface. In order to use the Infini- band pmda in this way, set the environment variable PMDA_LOCAL_IB prior to calling pmNewContext(3). SEE ALSO
pmcd(1), PMAPI(3), pmContextNew(3), ibnetdiscover(8). Performance Co-Pilot PCP PMDAIB(1)

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PMDAXFS(1)						      General Commands Manual							PMDAXFS(1)

NAME
pmdaxfs - XFS filesystem performance metrics domain agent (PMDA) SYNOPSIS
$PCP_PMDAS_DIR/xfs/pmdaxfs [-d domain] [-l logfile] DESCRIPTION
pmdaxfs is a Performance Metrics Domain Agent (PMDA) which extracts performance metrics describing the state of the XFS filesystem from the Linux kernel. The xfs PMDA exports metrics that measure information about metadata buffer usage, the journal, btree operations, inode operations, extended attributes, directories, quotas, read and write operation counts and of course throughput. The PMDA provides a facility to reset the values of all counters to zero using pmstore(1) with the xfs.control.reset metric. A brief description of the pmdaxfs 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 xfs.log is written in the current directory of pmcd(1) when pmdaxfs 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. INSTALLATION
The xfs PMDA is installed and available by default on Linux. If you want to undo the installation, do the following as root: # cd $PCP_PMDAS_DIR/xfs # ./Remove If you want to establish access to the names, help text and values for the XFS performance metrics once more, after removal, do the follow- ing as root: # cd $PCP_PMDAS_DIR/xfs # ./Install pmdaxfs 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 pmdaxfs $PCP_PMDAS_DIR/xfs/help default help text file for the xfs metrics $PCP_PMDAS_DIR/xfs/Install installation script for the pmdaxfs agent $PCP_PMDAS_DIR/xfs/Remove undo installation script for the pmdaxfs agent $PCP_LOG_DIR/pmcd/xfs.log default log file for error messages and other information from pmdaxfs 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), pmstore(1), pcp.conf(5) and pcp.env(5). Performance Co-Pilot PCP PMDAXFS(1)

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