eG Monitoring
 

Measures reported by OVMMemoryTest

Excessive memory usage by the Oracle VM server and its VMs can significantly degrade the quality of a user’s experiencewith the server. Under such circumstances, administrator need to identify what is causing the memory bottleneck – is it the host? Or is the VMs on the host? Using the OVMMemoryTest test administrators can quickly understand how the VMs are using the memeory resources and can thus determine whether/not they are likely to cause a memory contention on the host.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
Total_memory Indicates the total amount of physical memory on the host. MB  
Usable_memory Indicates the amount of memory allocated to VMs for use. MB  
Memory_used Indicates the amount of physical memory used. MB A low value is desired for this measure.
Memory_used_per Indicates the percentage of total physical memory resources used. Percent A value close to 100% is indicative of excessive usage of physical memory on the host. This can significantly degrade the performance of the host operating system.
Vm_mem_consumed Indicates the amount of physical memory consumed by the VMs. MB Ideally, the value of this measure should be low. Using the detailed diagnosis of this measure, you can determine the amount of memory used by each VM.
Pct_free_memory Indicates the percentage of physical memory resources of the host that is currently unused. Percent A very low value for this measure indicates a shortage of memory resources. If more machine memory is not made available soon, then this could significantly degrade the performance of the host operating system and the VMs.