pmdazswap - zswap (compressed swap) PMDA

pmdazswap  is a Performance Metrics Domain Agent (PMDA) which exports metric values about compressed swap
       operation, as tracked by the zswap Linux kernel module.

       Zswap is a lightweight compressed cache for swap pages.  It takes pages that are in the process of  being
       swapped  out  and  attempts  to  compress them into a dynamically allocated RAM-based memory pool.  Zswap
       trades CPU cycles for potentially reduced swap I/O.  This tradeoff  can  also  result  in  a  performance
       improvement if reads from the compressed cache are faster than reads from a swap device.

       This  PMDA  exports metrics about pool size, number of pages stored, and various counters for the reasons
       pages are rejected.

$PCP_PMDAS_DIR/zswap/Install
           installation script for the pmdazswap agent

       $PCP_PMDAS_DIR/zswap/Remove
           undo installation script for the pmdazswap agent

       $PCP_LOG_DIR/pmcd/zswap.log
           default log file for error messages from pmdazswap

       Install the zswap PMDA by using the Install script as root:

           #cd$PCP_PMDAS_DIR/zswap#./Install

       To uninstall, do the following as root:

           #cd$PCP_PMDAS_DIR/zswap#./Removepmdazswap 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.

pmdazswap - zswap (compressed swap) PMDA

       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).

PCPIntro(1) and pmcd(1).

Performance Co-Pilot                                   PCP                                          PMDAZSWAP(1)