How to determine license utilization efficiency – KB4063
The License Utilization chart is a powerful tool for assessing the efficiency of license utilization in the organization. This is especially important for customers who are contemplating the purchase or renewal of a subscription license (e.g. Autodesk subscription licenses) or renewing license maintenance.
To view the license utilization of a specific feature or group of features:
- Click the EasyAdmin User Interface ‘Start’ → ‘Management’ → “License Utilization” menu item.
- Fill in the filter data (e.g. Feature name, Server name, etc)
- Select the date range. Note that long date ranges provide improved statistical utilization data
- Select whether to consider weekends and off-hours data, and
- Click ‘Apply’
The emitted report encompasses data regarding:
- Aggregated usage presentation: A clear license utilization cut-off indicator
- Quality of Service (QoS): License efficiency indicator
- Detection of abnormal usage patterns: Where did these licenses go?
Some technical background is required here to explain the aforementioned bullets:
If the “Show aggregated” box is checked, the chart will present the aggregated percentage of usage, i.e. each point (x,y) answers the question: “What is the percentage of usage time (y) that AT LEAST a given number of licenses (x) have been in contemporary use?”.
Referring to the example below, for a total number of 4 licenses:
- At least 0 licenses have been in contemporary use 100 % of the time.
- At least 1 license has been in contemporary use 8.73 % of the time
- At least 2 licenses have been in contemporary use 2.7 % of the time
- At least 3 licenses have been in contemporary use 0.01 % of the time
Figure 1: Aggregated usage
This form of presentation filters out temporary usage peaks and provides insight into the actual number of licenses required to support the current level of activity.
If the “Show aggregated” box is NOT checked, the utilization chart will present a histogram of license usage. That means, about the x & y chart axes, that each point (x,y) answers the question: “What is the percentage of usage time (y) that an EXACT number of licenses (x) have been in use at the same time?”.
Referring to the example depicted below:
- Exactly 0 licenses have been in contemporary use 91.27% of the time.
- Exactly 1 license has been in use 6.03% of the time
- Exactly 2 licenses have been in contemporary use 2.69% of the time
- Exactly 3 licenses have been in contemporary use 0.01% of the time …
Note that this algorithm produces a non-monotonous function (e.g. the value for 3 contemporary licenses is higher than the value for 2 contemporary licenses).
Figure 2: Non-aggregated usage
As mentioned above, the emitted report encompasses data regarding:
The aggregated presentation is of decreasing function, which presents the number of required licenses. About the example presented in figure 1, there have never been 4 licenses in contemporary use within the past 365 days.
The Quality of Service (QoS) parameter is the percentage of configurable required license availability, as defined by the license administrator.
Consider the example presented in figure 1:
To support 95% of license requests, the organization would only need 2 licenses. Having procured 4 licenses means that the organization owns 2 redundant licenses.
This information is crucial when considering license subscription renewal, additional license procurement, or license maintenance renewal.
By comparing the two formats presented in figures 1 & 2 (w/wo the “Show Aggregated” check box), one could notice ‘blips’ in the utilization chart (e.g. for the value of 3 licenses). These ‘blips’ may indicate abnormal usage patterns, such as long-forgotten active sessions, or offline (‘borrowed’) licenses.