Memory Exhaustion - OS Test

Memory exhaustion in cloud PCs occurs when the allocated memory resources of a PC are completely consumed, causing the system to become slow, unresponsive, or crash. Memory exhaustion can lead to significant performance degradation and potential application failures. When memory resources are depleted, applications inside the PC may experience significant slowdowns. In the process of managing memory pressures, the system may experience high CPU utilization. Memory being over-utilized may cause the PC to swap out to disk, which may be indicated by increased swapping or disk I/O. The operating system may display OOM errors that result from processes being killed to free up memory. Memory-reliant applications like databases, in-memory caches, or web servers may experience crashes or hangs due to memory shortages. Some applications may start throwing memory allocation errors or failing to start. The PC can experience sluggishness or unresponsiveness, resulting in slow input or network communication. If memory exhaustion is severe, the whole PC may freeze or require a restart. All the above mentioned issues points towards the importance of monitoring memory usage and proactive identification and remediation of memory exhaustion.

This test monitors every cloud PC and notifies the administrators if there is any memory exhaustion happened, if the PC commit charge approaches system commit limit, when paged pool and non paged pool usage is unusually high, or if the PC is using high physical memory. This way the administrators can reduce the risk of memory exhaustion by identifying resource-intensive processes or applications, memory leakage, etc. long before it affects the performance of the system. This in turn helps to improve system stability, and ensure more efficient resource utilization.

Target of the test : A Windows 365 Cloud PCs Group

Agent deploying the test : A remote agent

Outputs of the test :One set of results will be reported for every cloud PC

Configurable parameters for the test

Parameter	Description
Test Period	How often should the test be executed.
Host	The nick name of the Windows 365 Cloud PCs Group component for which this test is to be configured.
Port	Refers to the port at which the specified host listens to. By default, this is NULL.
Report Powered OS	If this flag is set to Yes (which is the default setting), then the 'inside view' tests will report measures for even those Cloud PCs that do not have any users logged in currently. Such PCs will be identified by their name and not by the username_on_CloudPCName. On the other hand, if this flag is set to No, then this test will not report measures for those Cloud PCs to which no users are logged in currently.
Report By User	This flag is set to Yes by default. The value of this flag cannot be changed. This implies that the Cloud PCs in environments will always be identified using the login name of the user. In other words, this test will, by default, report measures for every username_on_CloudPCName.
DD Frequency	Refers to the frequency with which detailed diagnosis measures are to be generated for this test. The default is 1:1. This indicates that, by default, detailed measures will be generated every time this test runs, and also every time the test detects a problem. You can modify this frequency, if you so desire. Also, if you intend to disable the detailed diagnosis capability for this test, you can do so by specifying none against DD frequency.
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.

Measurements made by the test

Measurement	Description	Measurement Unit	Interpretation
Has memory exhaustion happened?	Indicates whether or not any memory exhaustion happened on this cloud PC.		The values that this measure can report and their corresponding numeric values are discussed in the table above: Measure value Numeric value No 0 Yes 1 Note: By default, this measure reports the above-mentioned Measure Values while indicating whether memory exhaustion happened or not. However, in the graph of this measure, states will be represented using the corresponding numeric equivalents only.
System commit limit	Indicates the maximum amount of virtual memory that can be committed without extending the paging file(s) on this cloud PC.	GB
System commit charge	Indicates the the total amount of virtual memory that all processes have requested and that the system has committed to providing on this cloud PC.	GB	If commit charge approach the commit limit, it could lead to performance issues.
Process commit charge	Indicates the total amount of virtual memory that a specific process has requested and that the system has committed to providing on this cloud PC.	GB	This measure helps in identifying processes that consume excessive virtual memory.
Paged pool usage	Indicates the amount of paged pool used by this cloud PC.	GB	If paged pool usage is unusually high, it may indicate a memory leak or inefficient memory usage by certain drivers or system components. In such cases, consider updating device drivers, especially network drivers, as they are often associated with memory leaks in the paged pool.
Non paged pool usage	Indicates the amount of non paged pool used by this cloud PC.	GB	If non-paged pool usage is unusually high, it may indicate a memory leak or inefficient memory usage by certain drivers or system components.
Total memory available	Indicates the total amount of physical memory available for use in this cloud PC.	GB
Memory usage	Indicates the amount of physical memory used by this cloud PC.	GB	This measure helps in identifying resource-intensive applications and potential memory leaks, ensuring your system operates efficiently.
Total processes	Indicates the total number of processes currently running in this cloud PC.	Number