To check the memory utilization and usage on a Linux system, you can use the free
command. This command displays information about the system's memory usage, including the total amount of physical and virtual memory, the amount of used and available memory, and the percentage of memory used.
To check the memory utilization and usage on a Linux system, open a terminal window and run the following command:
refer to:.iruttualcomfree -m
The free
command will display the memory usage in megabytes (MB). The -m
option specifies that the output should be displayed in MB.
For example, the output might look something like this:
total used free shared buff/cache available Mem: 7971 4379 1104 544 2486 3253 Swap: 4095 0 4095
In this example, the system has a total of 7971
MB of physical memory, with 4379
MB used and 3253
MB available. The system also has a swap partition with a total of 4095
MB.
To check the memory utilization and usage in real-time, you can use the free
command with the -s
option to specify a delay between updates.
For example, to check the memory utilization and usage every 5 seconds, you can use the following command:
free -s 5
This will display the memory utilization and usage every 5 seconds, allowing you to monitor changes in the memory usage over time.
It's worth noting that the free
command only displays information about the system's physical and virtual memory. It does not include information about other types of memory, such as shared memory or memory-mapped files. To get a more comprehensive view of the system's memory usage, you can use the vmstat
command or the /proc/meminfo
file.
To check the memory utilization and usage in more detail, you can use the vmstat
command. This command displays information about the system's memory, CPU, and I/O usage, including the amount of used and free memory, the number of memory pages swapped in and out, and the amount of CPU time spent in different states.
For example, to check the memory utilization and usage with the vmstat
command, you can use the following command:
vmstat -s