eG Monitoring
 

Measures reported by SarCpuTest

The "sar" command on Unix can be used to trigger the operating system to periodically collect and log CPU metrics. This test (run by an internal agent) exports metrics collected by sar into eG Enterprise. While SystemTest samples the system periodically to collect CPU metrics, the outputs of this SarCpuTest are more reliable as sar collects resource usage metrics continuously. The outputs of this test can be used for effective capacity planning.

 The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
User_cpu Indicates the percentage of CPU time spent on user processes. Percent A high value of this measure could indicate that users are executing one/more CPU-intensive processes.
System_cpu Indicates the percentage of CPU time spent on system-level processing. Percent An unusually high value indicates a problem and may be due to too many system-level tasks executing simultaneously.
Wait_cpu Indicates the percentage of CPU time spent waiting for I/O. Percent An unusually high value could indicate an I/O bottleneck.
Idle_cpu Indicates the percentage of time for which the CPU resources were idle. Percent  
Total_cpu Indicates the percentage of total CPU resources in use currently. Percent A consistent increase in the value could indicate a gradual erosion of CPU resources, which could result in too many processes contending for limited CPU resources. CPU contention can severely degrade the performance of a host.