Find Memory Or RAM And Swap Usage In Linux

RAM plays an important role in the performance of a system. So we should monitor this memory usage to troubleshoot system. free is the basic command to get details of RAM and swap usage. #freeExample :# free total used free shared buffers cachedMem: 3059872 2842016 217856 0 33936 2012684-/+ buffers/cache: 795396 2264476Swap: 2000052 67672 1932380(…)

How To Find And Remove Core Files In Linux?

What is a”Core file” ? Ans : A core file is created when a program is crashed/stoped abnormally due to some bug. This will be huge size which contains all the memory info, crash info which is used for programmers to debug the issue and find a solution or patch to that bug. Why we(…)

How To Kill Defunct Or Zombie Process?

A "defunct" processes is also known as a "zombie" processes. A Zombie process is referred as dead process which is receding on your system though its completed executing. In one shot we can say its a dead processes which is still in RAM. This process will be in your process table and consuming your memory.(…)

How To See Memory(RAM) Used By An Application Or Service?

Some times its required for us to know what is the RAM used by an application. Suppose in your machine Apache service or Mysql service is consuming up all your RAM. So how to check it? Is there any direct command to do this? The answer to this is no. We have to use two(…)

How To See What Processes Are Running On Your System?

Q. I know the subject is not quite what I want to know, but there is a command to list running processes and I can’t remember what it is? There are many commands to accomplish this. Here is the list. To see all the process running on a system#ps -AExample output : PID TTY TIME(…)