Viewing performance metrics
Depending on the information that you want to see, you can view performance metrics from the Flex Appliance Console or the Flex Appliance Shell.
You can view performance metrics of the nodes and the application instances from the Home page on the Flex Appliance Console. Locate the Performance section and use the tabs to switch between the nodes and the instances.
Note the following information about how the node and the instance data relate to each other:
The percent of CPU that all instances use should add up to approximately the same percent of CPU that the nodes use. If it does not, there may be an issue with the appliance.
The Available memory graph for the nodes shows how much memory is available, whereas the Memory utilization graph for the instances shows how much memory is used.
The Network throughput graph for the nodes shows how much data is transferred and received per network interface. If an interface is shared with multiple instances, it shows the cumulative throughput across those instances. The Network throughput graph for the instances shows how much data is transferred and received per interface on that instance only.
You can view live performance metrics of all of the instances on your appliance from the support shell command view in the Flex Appliance Shell.
To view instance performance metrics from the Flex Appliance Shell
- Log in to the Flex Appliance Shell on the node that you want to view performance metrics for.
To view metrics for all instances, enter the following commands:
support shell
podman stats --no-stream
To view metrics for a specific instance, enter the following commands:
support shell
podman stats --no-stream <instance name>
The following information displays for each of the instances on the node, including the Flex Appliance infrastructure instances:
CID: An instance identifier
CPU: The CPU usage of the instance
MEM: The memory usage of the instance
NET RX/TX: The amount of data that is being transmitted and received
IO R/W: The amount of data that is being read from and written to the instance storage disk(s)
PIDS: The total number of processes that are running on the instance
- When you are done reviewing the information, enter q to return to the main Flex Appliance Shell view.