Memory Performance Chart

In this article

    The Memory chart displays historical statistics on memory utilization for the selected infrastructure object.

    Memory Performance Chart

    Host

    The following table provides information on predefined views and counters that apply to hosts.

    Chart View

    Counter

    Measurement Unit

    Description

    Memory Usage

    Memory Active

    GB

    Sum of all active memory metrics for all powered-on VMs and vSphere services (such as COS, vpxa) on a host, as estimated by VMkernel based on recently touched memory pages.

    Memory Consumed

    GB

    Amount of physical memory used on a host, including memory used by the Service Console, VMkernel, vSphere services and total memory consumed by running VMs.

    Memory Pressure

    Percent

    Potential memory demand that is based on total allocated memory for running VMs, memory overhead, effects of memory Transparent Page Sharing and total available memory.

    Memory Usage

    Percent

    Memory usage as percentage of available machine memory.

    Memory Swap Rate

    Memory Swap Used

    B

    Amount of memory swapped to disk: sum of memory swapped for all powered on VMs and vSphere services on a host.

    Swap In Rate

    B/s

    Rate at which memory is swapped from disk into host active memory during the current interval.

    Swap Out Rate

    B/s

    Rate at which memory is swapped from host active memory to disk during the current interval.

    Memory Management

    Memory Balloon

    B

    Amount of memory allocated by the VM memory control driver (vmmemctl).

    Memory Compressed

    B

    Amount of RAM pages memory compressed by a host instead of swapping to disk.

    Memory Overhead

    B

    Total amount of memory overhead metrics for all powered-on VMs, plus memory overhead of running vSphere services on a host.

    Memory Sharing

    Memory Shared

    MB

    Sum of memory shared metrics for all powered-on VMs, and memory consumed by vSphere services on a host.

    Memory Shared Common

    MB

    Amount of memory shared by all powered-on VMs and vSphere services on a host.

    Memory Latency

    Memory Latency

    Percent

    Percentage of time a VM is waiting to access swapped or compressed memory.

    Virtual Machine

    The following table provides information on predefined views and counters that apply to VMs.

    Chart View

    Counter

    Measurement Unit

    Description

    Memory Usage

    Memory Active

    GB

    Amount of guest physical memory actively used, as estimated by VMkernel based on recently touched memory pages.

    Memory Consumed

    GB

    Amount of guest physical memory consumed by a VM. The value includes the shared and memory that might be reserved but not actually used; overhead memory is not taken into account.

    Memory Entitlement

    GB

    Amount of host physical memory a VM is entitled to, as determined by the ESXi scheduler.

    Memory Usage

    Percent

    Memory usage as percentage of configured physical memory for a VM.

    Memory Swap Rate

    Memory Swapped

    B

    Amount of guest physical memory swapped out to the VM swap file by the VMkernel. The metrics refers to VMkernel swapping, not to guest OS swapping.

    Swap In Rate

    B/s

    Rate at which memory is swapped from disk into active memory during the current interval.

    Swap Out Rate

    B/s

    Rate at which memory is swapped from active memory to disk during the current interval.

    Memory Management

    Memory Balloon

    MB

    Amount of memory allocated by the VM memory control driver (vmmemctl).

    Memory Compressed

    MB

    Amount of RAM pages compressed by a host instead of swapping to disk.

    Memory Overhead

    MB

    Amount of machine memory used by VMkernel to run a VM.

    Memory Saved by Zipping

    MB

    Amount of memory saved by memory zipping.

    Memory Sharing

    Memory Shared

    B

    Amount of guest physical memory that a VM shares with other virtual machines (through VMkernel Transparent Page Sharing and RAM deduplication).

    Memory Latency

    Memory Latency

    Percent

    Percentage of time a VM is waiting to access swapped or compressed memory.

    For objects that are parent to ESXi hosts and VMs, Veeam ONE Client displays rollup values.
    Charts for folders, clusters, datacenters, vCenter Servers display rollup values for all hosts in the container. Chart for a resource pool displays rollup values for all VMs in the resource pool.