The Machine statistics page provides a comprehensive view of resource consumption and session experience on the selected machine during the last 24 hours. This information helps administrators correlate occurrences of high CPU or memory usage with session failures and experience across the machines in their Virtual Apps and Desktops environment.
Accessing the Machine statistics page
Click the machine name link from the Self-service view for Machines.
Using the Machine statistics page
The Machine Statistics page displays the machine and session performance statistics in the same view. This view helps analyze machine resources, their usage pattern, and understand if machine resources might have been the bottleneck for poor performance.
The Machine Statistics page displays data for the last 24 hours, by default. However, data is available for the last 14 days. To choose a different 24 hour period, use the calendar. Data is displayed for the last 24 hours from the time you choose.
Key machine attributes are displayed.
- Delivery Group and Site the machine belongs to,
- OS type, OS of the machine,
Downtime represents the period during which the machine was in
Powered offstate in the last 24 hours.
Machine Performance statistics
Key metrics that define the machine performance are displayed.
- CPU Peak represents the maximum CPU utilization in the machine in the last 24 hrs.
- Sustained CPU Spikes represents the number of times CPU utilization crossed the CPU threshold of 80% and sustained for 5 minutes or more.
- Memory Peak represents the maximum memory consumption in the last 24 hrs.
- Sustained Memory Spikes represents the number of times memory consumption crossed the memory threshold of 80% and sustained for 5 minutes or more.
- The Machine Performance trend for a default 4 hour window in the last 24 hours shows CPU utilization and memory consumption plotted at 5 min granularity.
Session Performance Statistics
Key session performance related metrics are displayed.
- Session Failures that occurred on the machine over the last 24 hours.
- Session Failure trend displays the session failures count plotted for a default 4 hour window in the last 24 hours.
- Peak Concurrent Sessions represents the maximum number of concurrent sessions that were established on the machine over the past 24 hours.
- The User Session Performance trend shows the classification of sessions based on session experience as Excellent, Fair, or Poor, plotted for a default 4-hour window in the last 24 hours.
Time navigation bar
Machine and User Session Performance trends are plotted for a default 4-hour window. To view data corresponding to any other window in the 24-hour range, move the time navigation bars and choose a different time range. You can zoom in or out in a 2–8 hour window, to view the events corresponding to the selected time range.
- Machine downtime might cause disrupted plotting of the Machine Performance trend.
- If machines in your on-premises Virtual Apps and Desktops environment were added to the machine catalog before the site was onboarded to Performance Analytics, the OS information of the machine might not be available in the Machine Statistics view. As a workaround, add the machines to the machine catalog after the onboarding the site.
- Statistics of machines in your on-premises Virtual Apps and Desktops environment are available (up to) 24 hours after the onboarding to Performance Analytics has been initiated.
- The Machine Performance trend is not available for the duration when the machine was in
Powered offstatus, or if it was deleted from the Delivery Group. Statistics are available only for the period when the machine was available.
Typical Use case
The Machine statistics view provides information to troubleshoot a machine comprehensively. Let’s understand the usage of this view with a typical use case starting from the User Experience Dashboard. The Failure insights panel on the User Experience Dashboard, provides a list of black hole machines that resulted in three or more consecutive session failures.
Clicking the black hole machines link leads you to the Machines based self-service view. This view lists all the metrics related to the black hole machines such as the downtime, peak CPU, and peak memory.
Click a machine name in the self-service view for Machines to display the Machine statistics page. This page displays the machine and the session performance parameters plotted for the same time range. You can use this information to compare resource usage at the time of session failures and get insights on the possibility of resource crunch being a cause for failures.