Agents Administration - Tests
 

Default Parameters for VmgPageFileTest

When the load imposed by applications and services running on a server nears the amount of installed RAM, additional storage is necessary. The page file serves as the temporary store on disk for memory that cannot be accommodated in the physical RAM. Since it is frequently accessed for storing and retrieving data that is needed for virtual memory access by application, the location and sizing of the page files can have a critical impact on server's performance. Ideally, the server operating system and the page file should be available on different drives for optimal performance. Splitting the page file across different drives can improve performance further.

A rule of thumb in sizing the page file is to set the maximum size of the page file to 1.5 times the available RAM. While this works well for systems with smaller physical memory, for other systems, the optimal page file size has to be determined based on experience using the system and studying the typical workload.This test tracks the usage of each of the page files on a physical desktop.

This page depicts the default parameters that need to be configured for the VmgPageFileTest.

  • The TEST PERIOD list box helps the user to decide how often this test needs to be executed.

  • To obtain the ‘inside view’ of performance of the desktops - i.e., to measure the internal performance of the physical desktops - this test uses a light-weight eG VM Agent software deployed on each of the desktops. Accordingly, INSIDE VIEW USING parameter is by default set to eG VM Agent.

  • The REPORT POWERED OS is relevant only for those tests that are mapped to the Physical Desktops Details layer. If this flag is set to Yes (which is the default setting), then the 'inside view' tests will report measures for even those physical desktops that do not have any users logged in currently. Such desktops will be identified by their name and not by the username_on_physicalmachinename. On the other hand, if this flag is set to No, then this test will not report measures for those physical desktops to which no users are logged in currently.

  • REPORT BY USER flag is set to Yes by default. This implies that the physical machines 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_physicalmachinename.

  • IS CLOUD VMs flag is set to Yes by default. This implies that the physical machines 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_physicalmachinename.

  • Set REPORT TOTAL flag to Yes if you want the test to report total page file usage - i.e., the aggregate usage across multiple page files. In this case therefore, a Total descriptor will newly appear for this test in the eG monitoring console.

  • If both the Report Total and Report Total Only flags are set to Yes, then the test will report only the aggregate usage across multiple page files - in other words, the test will report values for the Total descriptor only. Likewise, if the Report Total flag is set to No, and the REPORT TOTAL ONLY flag is set to Yes, then again, the test will report current usage for the Total descriptor only. However, if both the Report Total and Report Total Only flags are set to No, then the test will report individual usages only. Also, if the Report Total flag is set to Yes and the Report Total Only flag is set to No, then both the individual and Total usages will be reported.

  • The 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.

  • Once the necessary values have been provided, clicking on the UPDATE button will register the changes made.

When changing default configurations of tests, the values with “$” indicate variables that will be replaced by the eG system according to the specific server being managed - for instance, $hostName is the host/nickname of the target host, $port is the port number of the server being monitored. E.g., for a server xyz:80, $hostName will be changed automatically by the eG manager to “xyz*” and $port will be changed to “80” when configuring a test.