Memory Details - Chrome OS Test

A contention for memory resources on the devices can affect the memory allocation to applications, which in turn can adversely impact the performance of the applications operating on the them. It is therefore imperative that you closely observe how the devices use the physical memory available to it, so that you can proactively determine a potential memory crunch. This can be achieved with the help of the Memory Details - Chrome OS test.

This test periodically monitors the devices in the target Google Chromebooks Group, and reports the memory usage of each device, checks whether adequate free memory is available to each device, and if not, promptly alerts users to the same. In the process, the test also reveals the amount of data consumed when the page faults had occurred on each device.

Target of the Test : Google Chromebooks Group

Agent deploying the test: A remote agent

Output of the test: One set of results each device in the target Google Chromebooks Group

Configurable parameters for the test
Parameters	Description
Test Period	How often should the test be executed. By default, this is set to 5 minutes.
Host	The host for which the test is to be configured.
Customer ID	To enable the eG agent to communicate to the devices managed by the target Google Chromebooks Group within the Google Workspace console and make REST API calls to collect metrics, the tests should be configured with the customer ID. To know how to obtain the customer ID mapped to the organization to which the target Google Chromebooks Group is mapped fron the Google Workspace console, refer to How does eG Enterprise Monitor Google Chromebooks Group? topic.
Private Keyfile Name	To connect to the Google Chromebooks Group, the eG agent requires a private key of a service account with Compute Viewer, Monitoring Viewer, and Cloud Asset Viewer roles in the target project. If a service account pre-exists in the project, then you can download the private key as a JSON file. Save this JSON file in the <eG_Install_Dir>/agent/lib folder and provide the name of that file against this parameter. However, if no such service account pre-exists, you will have to create one for monitoring the project. To know how to create a service account and download its private key, refer to How does eG Enterprise Monitor Google Chromebooks Group? topic.
Proxy Host and Proxy Port	In some environments, all communication with the Google Chromebooks Group be routed through a proxy server. In such environments, you should make sure that the eG agent connects to the devices in the group via the proxy server and collects metrics. To enable metrics collection via a proxy, specify the IP address of the proxy server and the port at which the server listens against the Proxy Host and Proxy Port parameters. By default, these parameters are set to none, indicating that the eG agent is not configured to communicate via a proxy, by default.
Proxy Username, Proxy Password and Confirm Password	If the proxy server requires authentication, then, specify a valid proxy user name and password in the Proxy Username and Proxy Password parameters, respectively. Then, confirm the password by retyping it in the Confirm Password text box.
Detailed Diagnosis	To make diagnosis more efficient and accurate, the eG Enterprise embeds an optional detailed diagnostic capability. With this capability, the eG agents can be configured to run detailed, more elaborate tests as and when specific problems are detected. To enable the detailed diagnosis capability of this test for a particular server, choose the On option. To disable the capability, click on the Off option. The option to selectively enable/disable the detailed diagnosis capability will be available only if the following conditions are fulfilled: The eG manager license should allow the detailed diagnosis capability Both the normal and abnormal frequencies configured for the detailed diagnosis measures should not be 0.

Measures made by the test
Measurement	Description	Measurement Unit	Interpretation
Total memory	Indicates the total amount of memory allocated for this device.	MB
Used memory	Indicates the amount of memory utilized by this device.	MB	A low value is desired for this measure.
Free memory	Indicates the amount of memory that is currently available for use.	MB	A sudden decrease in this value could indicate an unexpected/sporadic spike in the memory utilization of the Chromebook. A consistent decrease however could indicate a gradual, yet steady erosion of memory resources, and is hence a cause for concern.
Memory utilization	Indicates the percentage of memory that is utilized by this device.	Percent	A value close to 100 indicates that the memory utilization is at its peak. Administrators may therefore be required to add additional memory resources to the Chromebook.
Page faults	Indicates the amount of data that a program tried to access from the memory block that is not a part of the RAM of this device.	MB	A page fault is an exception that occurs when a program attempts to access a memory block that is not currently stored in the physical memory (RAM) of the system. Page faults can significantly slow down a program because accessing data from disk is much slower than accessing data from the physical memory.