How is the total CPU usage calculated for a Linux server monitor?
CPU Utilization is calculated using the 'top' command.
CPU Utilization = 100 - idle time
idle value = 93.1
CPU Utilization = ( 100 - 93.1 ) = 6.9%
If the server is an AWS instance, CPU usage is calculated using the formula:
CPU Utilization = 100 - idle_time - steal_time
How is the memory and CPU percentage for every process calculated for a Linux server monitor?
The CPU percentage for every process is calculated using the formula given below: ProcessCPU% = (((val2 - val1) / (time2 - time1)) * 100) / NumberOfLogicalProcessors where, val1 is the CPU percentage of the process taken at time 1 val2 is the CPU ...
How is the total memory utilization calculated for a Linux server monitor?
Memory utilization is calculated using the "free" command. The output of this command varies according to the Linux distribution used. Case 1: Memory Utilized = ( (Total - Free Memory) / Total * 100 ) where, Free Memory = ( Total - Used + Buffer + ...
How is the metric 'CPU Utilization by Cores' calculated in Site24x7 Linux Monitoring?
The metric 'CPU Utilization by Cores' can be viewed under the CPU tab ( Server > Server Monitor > Servers > click on a monitor > CPU ) for a Linux server monitor in Site24x7. Command Executed: Sample Output: Explanation: corename -- UserModeTime -- ...
What metrics do I get per Linux server monitor?
For a single Linux server monitor, you will be able to monitor the following metrics to ensure its continued performance: Load average CPU utilization - overall CPU usage, CPU usage by cores, interrupts and context switches, CPU idle time, nice time, ...
How is the total memory utilization calculated for a Windows server monitor?
Memory utilization for Windows is calculated using WMI queries. The Total, Free, and Used Memory is calculated using Select FreePhysicalMemory,TotalVisibleMemorySize from Win32_OperatingSystem WMI query. The Swap Memory value is calculated using ...