vRealize Operations Manager collects CPU use, disk, memory, network, and summary metrics for objects in the vSphere world.

Capacity metrics can be calculated for vSphere world objects. See Capacity and Project-Based Metrics.

CPU Usage Metrics

CPU usage metrics provide information about CPU use.

Table 1. CPU Usage Metrics

Metric Key

Metric Name

Description

cpu|capacity_usagepct_average

Capacity Usage

CPU usages as a percent during the interval.

cpu|capacity_contentionPct

CPU Contention

Percent of time the virtual machine is unable to run because it is contending for access to the physical CPU(s).

cpu|demandPct

Demand (%)

CPU resource entitlement to CPU demand ratio (in percents).

cpu|demandmhz

Demand (MHz)

The amount of CPU resources a virtual machine would use if there were no CPU contention or CPU limit.

cpu|demand_average

Demand

CPU demand in megahertz.

cpu|iowait

IO Wait

IO wait (ms).

cpu|numpackages

Number of CPU Sockets

Number of CPU sockets.

cpu|capacity_contention

Overall CPU Contention

Overall CPU contention in milliseconds.

cpu|capacity_provisioned

Provisioned Capacity (MHz)

capacity in MHz of the physical CPU cores.

cpu|corecount_provisioned

Provisioned vCPU(s)

Number of provisioned CPU cores.

cpu|reservedCapacity_average

Reserved Capacity (MHz)

Total CPU capacity reserved by virtual machines.

cpu|usagemhz_average

Usage (MHz)

CPU usages, as measured in megahertz, during the interval.

  • VM - Amount of actively used virtual CPU. This is the host's view of the CPU usage, not the guest operating system view.

  • Host - Sum of the actively used CPU of all powered on virtual machines on a host. The maximum possible value is the frequency of the two processors multiplied by the number of processors. For example, if you have a host with four 2 GHz CPUs running a virtual machine that is using 4000 MHz, the host is using two CPUs completely: 400 / (4 2000) = 0.50

cpu|wait

Wait

Total CPU time spent in wait state. The wait total includes time spent in the CPU Idle, CPU Swap Wait, and CPU I/O Wait states.

cpu|workload

Workload (%)

Percent of workload

Memory Metrics

Memory metrics provide information about memory use and allocation.

Table 2. Memory Metrics

Metric Key

Metric Name

Description

mem|host_contentionPct

Contention

Percent host memory contention.

mem|host_demand

Machine Demand (KB)

Host memory demand in kilobytes.

mem|host_provisioned

Provisioned Memory

Provisioned host memory in kilobytes.

mem|reservedCapacity_average

Reserved Capacity (KB)

Total amount of memory reservation used by powered-on virtual machines and vSphere services on the host.

mem|host_usable

Usable Memory (KB)

Usable host memory in kilobytes.

mem|host_usage

Host Usage (KB)

Host memory use in kilobytes.

mem|host_usagePct

Usage/Usable (%)

Memory usage as percentage of total configured or available memory.

mem|workload

Workload (%)

Percent of workload.

Network Metrics

Network metrics provide information about network performance.

Table 3. Network Metrics

Metric Key

Metric Name

Description

net|droppedPct

Packets Dropped (%)

Percent network packets dropped.

net|usage_average

Usage Rate (KB per second)

Sum of the data transmitted and received for all of the NIC instances of the host or virtual machine.

net|workload

Workload (%)

Percent of workload.

Disk Metrics

Disk metrics provide information about disk use.

Table 4. Disk Metrics

Metric Key

Metric Name

Description

disk|commandsAveraged_average

Commands per second

Average number of commands issued per second during the collection cycle.

disk|usage_average

Usage Rate (KB per second)

Average of the sum of the data read and written for all of the disk instances of the host or virtual machine.

disk|workload

Workload (%)

Percent of workload.

Summary Metrics

Summary metrics provide information about overall performance.

Table 5. Summary Metrics

Metric Key

Metric Name

Description

summary|number_running_hosts

Number of Running Hosts

Number of running hosts.

summary|number_running_vms

Number of Running VMs

Number of running virtual machines.

summary|total_number_clusters

Total Number of Clusters

Total number of clusters.

summary|total_number_datastores

Total Number of Datastores

Total number of datastores.

summary|total_number_hosts

Total Number of Hosts

Total number of hosts.

summary|total_number_vms

Total Number of VMs

Total number of virtual machines.

summary|total_number_datacenters

Total Number of Datacenters

Total number of data centers.

summary|number_running_vcpus

Number VCPUs on Powered on VMs

Number of virtual CPUs on powered-on virtual machines.

summary|avg_vm_density

Average Running VM Count per Running Host

Average running virtual machine count per running host.