The following example will output the highest memory process in batch mode. We can use top batch mode to capture the process info. press the up or down arrow until the %MEM choice is highlighted.Sort By memory Usage per-process in the top command interactive menu Tip: A leading ‘+’ will force sorting high to low, whereas a ‘-” will ensure a low to high ordering. This will sort the process by memory usage. This will display the information about the current running processes on your system. The best way to sort the top command by memory usage is by pressing shift+m after running the top command. The output requires a little knowledge to interpret, but we’ll cover that below. sort mem usage per process in the interactive menu. The free Linux command provides a very quick and easy way to see a system’s current memory utilization.press shift+m after running the top command.3 Ways to Sort Top Command by memory usage The top command is a useful tool for understanding what processes are running on your system and how they’re using resources. The vmstat command reports information about processes, memory, paging, block IO, traps, and cpu activity. Showing memory usage in Linux by process and user There are several commands for checking up on memory usage in a Linux system, and here are some of the better ones. The free command displays the total amount of free and used physical and swap memory in the system, as well as the buffers used by the kernel. It can also be used to see the PID, username, and command line for each process. Linux comes with different set of commands to check memory usage. The top command can be used to see the CPU usage, memory usage, and swap usage for each process. CONTAINER- 7827fe8127eb CPU - 0.00 MEM USAGE / LIMIT - 67.1MiB / 7.666GiB MEM - 0.85 NET I/O - 76.4kB / 6.19kB BLOCK I/O - 42.7MB / 0B From above stats I know, the memory used by my container is 67. The top command in Linux is used to display information about the current running processes on your system. Below we collect 3 ways to sort processes by memory. And to sort by pid, from low to high, again we remove the '-' from our argument: ps aux -sort pid. First, to sort by pid, in order from highest PID to lowest, we'd use this ps command: ps aux -sort -pid. The default sorting key is %CPU on Linux. To sort the output of the ps command by pid, we'd issue one of the following two commands. Use any of the following commands to display top 10 processes (including child processes) that use the most memory on your Linux machine.Top is a very powerful command to periodically display a sorted list of system processes. I’ve successfully used these commands on: Linux Mint, Ubuntu, Debian, CentOS, RHEL. In this small note you’ll find two similar commands that can find out and sort top processes by memory usage on your Linux system. It is quite a common situation when your server is out of memory and you want to check what processes are using all the RAM and swap.
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