eG Monitoring
 

Measures reported by CSLSystemTest

The Control Domain test discussed above reports the CPU and memory usage of the control domain. While this can indicate a contention for resources on the control domain, it cannot lead admiistrators to the exact process(es) executing on the domain that could be causing the contention. To enable administrators to accurately diagnose the root-cause of CPU or memory contentions experienced by the control domain, and to facilitate effective analysis of its impact on other parameters such as run queue length and swap memory usage, eG Enterprise offers the specialized CSLSystemTest test.

This test reports the physical CPU usage of the Oracle VM Server and points to that VM that is hogging the resources.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
Cpu_util This measurement indicates the percentage of utilization of the CPU time of the control domain. Percent A high value could signify a CPU bottleneck. The CPU utilization may be high because a few processes are consuming a lot of CPU, or because there are too many processes contending for a limited resource. The detailed diagnosis of this test reveals the top-10 CPU-intensive processes on the control domain.
System_cpu_util Indicates the percentage of CPU time spent for system-level processing. Percent An unusually high value indicates a problem and may be due to too many system-level tasks executing simultaneously.
Run_queue_length Indicates the instantaneous length of the queue in which threads are waiting for the processor cycle. This length does not include the threads that are currently being executed. Number A value consistently greater than 2 indicates that many processes could be simultaneously contending for the processor.
Num_blocked_procs Indicates the number of processes blocked for I/O, paging, etc. Number A high value could indicate an I/O problem on the console (e.g., a slow disk).
Swap_memory Denotes the committed amount of virtual memory. This corresponds to the space reserved for virtual memory on disk paging file(s). MB An unusually high value for the swap usage can indicate a memory bottleneck. Check the memory utilization of individual processes to figure out the process(es) that has (have) maximum memory consumption and look to tune their memory usages and allocations accordingly.
Free_memory Indicates the free memory available. MB A very low value of free memory is also an indication of high memory utilization. The detailed diagnosis of this measure lists the top 10 processes responsible for maximum memory consumption on the control domain.