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
val1 is the CPU percentage of the process taken at time 1
val2 is the CPU percentage of the process taken at time 1
The memory percentage for every process is calculated using the below formula:
ProcessMemory% = ((WorkingSetSize of the process) * 100) / (TotalVisibleMemorySize of the entire machine * 1024)
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 Eg: 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 ...
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 + ...
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, ...
Can I view the CPU and memory used by each process running in my server?
Yes, the CPU and memory used by each process in the server can be viewed to find out the root cause of the bottleneck and enable faster troubleshooting. Please follow the steps below: Log in to Site24x7 and go to Server > Server Monitor > Servers. ...
How are the metrics calculated in agentless server monitoring?
SNMP server monitoring Metrics such as CPU, Memory, and Disk utilization are collected via SNMP using the OIDs given below: Attribute OID CPU .22.214.171.124.126.96.36.199.3.1.2 Memory .188.8.131.52.184.108.40.206.1.1.2 Disk .220.127.116.11.18.104.22.168.3.1.6 Free Disk Space (MB) ...