How to use the `vmstat` command to check memory usage in Linux. In Linux
vmstat vmstat command is used to display virtual memory statistics of the system. This command reports data about the memory, paging, disk, and CPU activities, etc. The first use of this command returns the data averages since the last reboot. Further users return the data based on sampling periods of long delays.
vmstat
To view disk statics
vmstat -d
Displays the amount of memory used and available.
vmstat -s
Tracing memory usage in Linux
Memory is a critical resource in computing because its usage affects the performance and stability of a system. It’s necessary to trace the memory usage of the system in order to determine the program that consumes all CPU resources or the program that is responsible for slowing down the activities of the CPU.
Tracing memory usage also becomes necessary to determine the load on the server. Parsing the usage data enables the servers to be able to balance the load and serve the user’s request without slowing down the system. In Linux, there are several ways to trace memory usage, and we are going to discuss them.