Analyze Overloaded Devices

Use the Device Resource Utilization dashboard to view the overloaded devices that consume most of CPU and Disk IO. Aternity informs you how many devices are overloaded out of the total amount of devices in your organization, as well as how your organization performs compared to other organizations. Awareness can reduce the disruptive impacts.

The dashboard is an integrated part of the Aternity Experience Insight. The Overloaded Devices Insight focuses on resource usage like CPU and Disk I/O (the number of waiting I/O requests to read or write to the hard disk or a logical disk at a given time). The Insight provides data for monitored devices, like Windows, Mac, Mobile, and virtual desktop devices.

You can access the dashboard by clicking on the insight title Overloaded Devices in Your Organization in your digest email. Alternatively, access it from the Dashboards Library.

Procedure

  1. Step 1 Open a browser and sign in to Aternity.
  2. Step 2 Open the Device Resource Utilization dashboard by one of the following ways:
    • Register for our periodic email digest and be notified. Learn more.

    • Alternatively, select Main Menu > Insights. If there are overloaded devices in your organization, you will see the Insight notification about the issue on the front page.

    • And another way to get this dashboard, select Main Menu > Library > All > Device Resource Utilization.

  3. Step 3 Select the timeframe within which you want to investigate the devices.
  4. Step 4 In the Quadrants tab, view the distribution of all devices on the graph (in four groups).

    Aternity shows how many devices in the organization suffer from high CPU consumption, how many from high Disk Queue Length, and the total amount of devices with normal resource utilization.

    Field Description
    High CPU consumption

    The more hours between excessive CPU usage peaks, the better device performance.

    High frequency of excessive CPU usage (small number of hours between events) causes employees low satisfaction.

    This group of devices is presented by the orange circle .

    High Disk IO consumption

    High Disk IO consumption means that a queue for the disk is bigger than 5.

    The more hours between excessive disk usage peaks, the better device performance. A consistent queue for the disk indicates a bottleneck in hard disk access, which significantly impacts on employees low satisfaction and system performance, either due to excess system demands on the disk, or it can be a hardware disk problem.

    This group of devices is presented by the yellow circle .

    High Both CPU and Disk IO

    Displays the combination of high CPU usage and high disk queue length.

    This group of devices is presented by the red circle .

    Normal Resource Consumption

    Displays the total amount of devices with normal resource consumption.

    This group of devices is presented by the green circle .

    Hover over the circle to view the tooltip with more information:
    Field Description
    Device Utilization

    Displays the type of resource utilization also symbolized by the color of the circle (High CPU Usage, High Disk Usage, Both CPU and Disk IO are high, or Normal).

    Avg Hours Between Excessive CPU Usage

    Displays the number of hours between the events. The more hours between excessive CPU usage peaks, the better device performance.

    Avg Hours Between Excessive Disk Usage

    Displays the number of hours between the events. The more hours between excessive disk usage peaks, the better device performance.

    # Devices

    Displays the number of devices with similar resource utilization.

  5. Step 5 In the Organizational View - Breakdown tab, view problematic devices by an available criteria, like Model, CPU Type, Disk Type, Manufacturer, or Memory Size.
    Tip

    The tabs Organizational View - Breakdown and Device Level Analysis display only problematic devices with high resource consumption that require further investigation. If all devices in organization perform normally, these tabs are empty.

    Device List is the default view of this tab. Next to each device name, see the color of the group to which the device currently belongs. The widgets display CPU Usage, Disk Usage and Performance Index for all devices together.

    1. a If the widget is empty, reduce the Minimal number of devices to show on the graph.
      Probably, there are less devices than predefined to show.
      Reduce the number of devices to show
    2. b In the Device List, select the device you want to deeper investigate.

      Once selected, the view in all widgets changes to display data for the selected device only. Performance index shows values only for the time periods when the device was in use, not for its idle state.

    3. c Select in the Show List By how you want to show the data.

      The list changes accordingly. For example, for Disk Type, see the group of all devices with the SSD disk, the group of devices with the HDD-5400, and so on. The colored icons show what kind of problem the devices with that disk experience, for example devices with HDD-5400 suffer from High Disk I/O.

      Field Description
      CPU Type Displays the core type of the processor, for example i7, E5, and so on.
      Memory Size

      Displays the size of a usable physical RAM of the device (also known as Total Physical Memory).

      Model (device)

      Displays the name and the model number of the device, like iPhone 6s, GalaxyTab8, MacBook Pro 12.1, Dell Latitude D620.

      Disk Type
      (Windows only, Agent 9.0.3 or later) Displays the type of hard disk containing the operating system. Possible values are:
      • HDD for a traditional spinning hard disk drive

      • SSD for a solid state drive

      • Virtual if this is not a physical device.

      Manufacturer

      Displays the name of the vendor which created this device, like Samsung, Apple, Dell, Lenovo, and so on.

    4. d Select a group from the list. All graphs change accordingly to show the data for the selected group of devices.

      For example, select the SSD disk type from the list to view the used applications, CPU Usage, Disk Usage, and Performance Index for that group, for all devices in your organization with the SSD disk.

  6. Step 6 Go to the Device Level Analysis tab to view how a certain device performs and to investigate its excessive usage.

    The default breakdown view is by device. In the Device Type List, you can see to which group the device belongs because there is a colored icon next to the device name.

    1. a In the Show List By, select how you want to see the devices list.

      The selection groups the list by device, or model, or manufacturer. The icons next to each group indicate that there are devices in this group with high CPU or High Disk IO or both.

      Field Description
      Model (device)

      Displays the name and the model number of the device, like iPhone 6s, GalaxyTab8, MacBook Pro 12.1, Dell Latitude D620.

      CPU Model

      (Windows on Intel only) Displays the model and speed of the Intel processor, as displayed in the System control panel. For example Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz or Intel(R) Xeon(R) CPU E5620 @ 2.40GHz.

      Disk Type
      (Windows only, Agent 9.0.3 or later) Displays the type of hard disk containing the operating system. Possible values are:
      • HDD for a traditional spinning hard disk drive

      • SSD for a solid state drive

      • Virtual if this is not a physical device.

      Manufacturer

      Displays the name of the vendor which created this device, like Samsung, Apple, Dell, Lenovo, and so on.

      Device (name)

      Displays the name of a device.

    2. b Select a device from the list and view what applications it used and for how long, view its Performance Index, CPU Usage and Disk Usage.

      If necessary, adjust the timeframe and investigate the usage during a different time period.

      Performance Index is displayed only for those hours when the device was in use.

    3. c In any of the timeline widgets, select a bar to isolate this event from all the rest and correlate its CPU Usage, Disk Usage and Performance Index.
      Field Description
      Device Usage

      Displays whether the device is in use or idle.

      When idle, the resource consumption may be high because of antivirus operations or automatic Windows updates.

      CPU Usage Timeline

      Display the trend of CPU usage for the group of devices or for the selected device during the dashboard timeframe.

      Average of Max CPU Utilization

      Displays average number of hours for all devices with events where CPU was higher than 90%.

      Disk Usage Timeline

      Display the trend of Disk Queue Length for the group of devices or for the selected device during the dashboard timeframe.

      Average of Max Disk Queue Length

      Displays average number of hours for all devices with events where disk queue length was longer than 5.

      A consistent queue for the disk indicates a bottleneck in hard disk access, which significantly impacts on system performance, either due to excess system demands on the disk, or it can be a hardware disk problem. To check if the problem is hardware, view if the speed (rate of reads and writes to the disk) is low

      Performance Index Timeline

      Display the trend of Performance Index for the group of devices or for the selected device during the dashboard timeframe.

      Performance Index

      The performance index is a value (0-5) which measures an application's responsiveness. If users must wait frequently or for long periods for an application to respond, its performance index is lower. It is calculated from the usage time and wait time.

      Definition of performance index

      This index is an absolute (not relative) measurement, since it does not use baselines which may vary between applications or locations. However, it is cumulative, not a spot measurement, as each reading relies on and contains those which came beforehand. Absolute measures allow Aternity to accurately use a single consistent dimension across several attributes. For example, it can display this index for a single user on a single application, or many users on a single application, or many users on many applications.

      Time

      The graph displays resource utilization for the selected device or group of devices for each hour on the timeline within the timeframe of the dashboard.

  7. Step 7 In the About tab, read about the dashboard purpose, learn how to register to the Aternity Insights Digest, and see the contact email for further questions.