| PMDARESCTRL(1) | General Commands Manual | PMDARESCTRL(1) |
pmdaresctrl - resctrl performance metrics domain agent (PMDA)
$PCP_PMDAS_DIR/pmdaresctrl [-d domain] [-l logfile]
pmdaresctrl is a resctrl Performance Metrics Domain Agent (PMDA) which exposes performance metrics values from the /sys/fs/resctrl interface to provide information on the last level cache.
Further details on linux support for last level cache metrics can be found at https://github.com/torvalds/linux/tree/master/Documentation/arch/x86/resctrl.rst.
If you want access to the names, help text and values for the resctrl performance metrics, do the following as root:
# cd $PCP_PMDAS_DIR/resctrl # ./Install
If you want to undo the installation (and remove both PMDAs), do the following as root:
# cd $PCP_PMDAS_DIR/resctrl # ./Remove
pmdaresctrl 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.
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). In particular, the $PCP_RESCTRL_DIR may be set to change the default directory from /sys/fs/resctrl.
PCPIntro(1), pmcd(1), pcp.conf(5), pcp.env(5) and resctrl(1).
| PCP | Performance Co-Pilot |