vhostmd/vhostmd.conf

<?xml version="1.0" ?>
<!DOCTYPE vhostmd SYSTEM "vhostmd.dtd">

<!--

Configuration file for virtual host metrics daemon (vhostmd).

A better, less noisy, more minimal configuration file
which doesn't depend on Xen.

Supported metric types are: int32, uint32, int64, uint64, real32,
real64, and string.

A metric's value is set to the output produced by executing its action.

'action' can include the special token NAME, in which case the name of
the vm currently under inspection is substituted for NAME.  Only useful
within the vm element.

-->

<vhostmd>
  <globals>
    <disk>
      <name>host-metrics-disk</name>
      <path>/dev/shm/vhostmd0</path>
      <!-- must be between [128 KB, 256 MB] in size -->
      <size unit="k">256</size>
    </disk>
    <update_period>60</update_period>
    <path>/bin:/sbin:/usr/bin:/usr/sbin:/usr/share/vhostmd/scripts</path>
    <transport>vbd</transport>
    <!-- <transport>xenstore</transport> -->
  </globals>
  <metrics>
    <metric type="string" context="host">
      <name>HostName</name>
      <action>hostname</action>
    </metric>
    <metric type="uint64" context="host">
      <name>Time</name>
      <action>date +%s</action>
    </metric>
    <metric type="string" context="host">
      <name>VirtualizationVendor</name>
      <action>
        rpm -qi libvirt| grep Vendor:   \
          | gawk '{print substr($0, index($0,$5)) }'
      </action>
    </metric>
    <!-- SAP "CIM"  -->
    <metric type="string" context="host">
      <name>VirtProductInfo</name>
      <action>
        virsh -r CONNECT version | grep API   \
          | gawk -F': ' '{print $2}'
      </action>
    </metric>
    <!-- SAP "CIM"  -->
    <metric type="string" context="host">
      <name>HostSystemInfo</name>
      <action>hostname -s</action>
    </metric>
    <!-- SAP "CIM"  -->
    <metric type="uint32" context="host">
      <name>NumberOfPhysicalCPUsUtilized</name>
      <action>
        virsh -r CONNECT nodeinfo | grep 'CPU(s):'    \
          | gawk -F': +' '{print $2}'
      </action>
    </metric>
    <!-- SAP "CIM"  -->
    <metric type="uint64" context="host">
      <name>MemoryAllocatedToVirtualServers</name>
      <action>
        virsh -r CONNECT nodeinfo | grep 'Memory size:'   \
          | gawk -F' +' '{ printf "%d\n", $3/1024 }'
      </action>
    </metric>
    <!-- SAP "CIM"  -->
    <metric type="uint64" context="host">
      <name>FreePhysicalMemory</name>
      <action>
        free|egrep -i '^[[:space:]]*(Mem:)'   \
          | gawk 'BEGIN { sum = 0; }
              { sum += $4; }
              END { printf "%d\n", sum/1024; }'
      </action>
    </metric>
    <metric type="uint64" context="host">
      <name>UsedPhysicalMemory</name>
      <action>
        free|egrep -i '^[[:space:]]*(Mem:)'   \
          | gawk 'BEGIN { sum = 0; }
              { sum += $3; }
              END { printf "%d\n", sum/1024; }'
      </action>
    </metric>
    <!-- SAP "CIM"  -->
    <metric type="uint64" context="host">
      <name>FreeVirtualMemory</name>
      <action>
        free|egrep -i '^[[:space:]]*(Mem:|Swap:)'   \
          | gawk 'BEGIN { sum = 0; }
              { sum += $4; }
              END { printf "%d\n", sum/1024; }'
      </action>
    </metric>
    <!-- SAP "CIM"  -->
    <metric type="uint64" context="host">
      <name>UsedVirtualMemory</name>
      <action>
        free|egrep -i '^[[:space:]]*(Mem:|Swap:)'   \
          | gawk 'BEGIN { sum = 0; }
              { sum += $3; }
              END { printf "%d\n", sum/1024; }'
      </action>
    </metric>
    <metric type="uint64" context="host">
      <name>PagedInMemory</name>
      <action>
        vmstat -s | gawk 'BEGIN {
                        cmd = "getconf PAGESIZE";
                        cmd | getline pagesize;
                        close(cmd);
                      }
                      /pages swapped in/ {
                        printf "%d\n", $1 / 1024 * pagesize / 1024;
                      }'
      </action>
    </metric>
    <!-- SAP "CIM"  -->
    <metric type="uint64" context="host">
      <name>PagedOutMemory</name>
      <action>
        vmstat -s | gawk 'BEGIN {
                        cmd = "getconf PAGESIZE";
                        cmd | getline pagesize;
                        close(cmd);
                      }
                      /pages swapped out/ {
                        printf "%d\n", $1 / 1024 * pagesize / 1024;
                      }'
      </action>
    </metric>
    <metric type="group" context="host">
      <name>PageRates</name>
      <action>pagerate.pl</action>
      <!-- SAP "CIM"  -->
      <variable name="PageInRate" type="uint64"/>
      <variable name="PageFaultRate" type="uint64"/>
    </metric>
    <metric type="real64" context="host">
      <name>TotalCPUTime</name>
      <action>
        gawk 'BEGIN {
          getline &lt; "/proc/uptime";
          idle_sec  = $2;
          while ( 0 &lt;= (getline &lt; "/proc/stat") )
          {
            if ( "cpu" == $1 )
            {
              USER_HZ = $5/idle_sec;
              #printf "USER_HZ = %f\n", USER_HZ | "cat 1&gt;&amp;2"
              TotalCPUTime = ($2 + $3 + $4)/USER_HZ;
              printf "%f\n", TotalCPUTime;

              break;
            }
          }
          #close("cat 1&gt;&amp;2");
        }'
      </action>
    </metric>
    <!-- SAP "CIM"  -->
    <metric type="real64" context="vm">
      <name>TotalCPUTime</name>
      <action>
        virsh -r CONNECT dominfo NAME | sed 's/: */:/'    \
          | gawk -F: '/CPU time/ {print $2;}'
      </action>
    </metric>
    <metric type="uint32" context="vm">
      <name>NumberOfAssignedPhysicalCPUs</name>
      <action>
        virsh -r CONNECT dominfo NAME | grep 'CPU(s):'    \
          | gawk -F': +' '{print $2}'
      </action>
    </metric>
    <!-- SAP "CIM"  -->
    <metric type="uint64" context="vm">
      <name>PhysicalMemoryAllocatedToVirtualSystem</name>
      <action>
        virsh -r CONNECT dominfo NAME | grep 'Max memory:'    \
          | gawk -F' +' '{printf "%d\n", $3/1024}'
      </action>
    </metric>
    <!-- will only be supported by Fedora -->
    <!-- <metric type="uint64" context="vm">
      <name>UsedMem</name>
      <action>
        virsh -r CONNECT dominfo NAME | grep 'Used memory:'   \
          | gawk -F' +' '{printf "%d\n", $3/1024}'
      </action>
    </metric> -->
  </metrics>
</vhostmd>
<!--
  vi:ts=2:sw=2:expandtab:ignorecase:nu:ruler
-->
<!-- EOF -->