Q. How do I find out what process are eating up all my memory. Is it possible to find out how long that memory has been allocated to particular process? How do I kill that process to free up memory?
A. You need to use the top command which provides a dynamic real-time view of a running system. It can display system summary information as well as a list of tasks currently being managed by the Linux kernel.
Simply type top command:
# top
top command will tell you the percentage of physical memory a particular process is using at any given time. As far as I know, there is no easy way that can tell how long that memory has been allocated.
You can also use ps command to get more information about process.
# ps aux | less
To kill process use kill command under Linux. Read man page of top and ls for more information.
Featured Articles:
- 20 Linux System Monitoring Tools Every SysAdmin Should Know
- 20 Linux Server Hardening Security Tips
- My 10 UNIX Command Line Mistakes
- Linux: 20 Iptables Examples For New SysAdmins
- 25 PHP Security Best Practices For Sys Admins
- The Novice Guide To Buying A Linux Laptop
- 10 Greatest Open Source Software Of 2009
- Top 5 Email Client For Linux, Mac OS X, and Windows Users
- Top 20 OpenSSH Server Best Security Practices
- Top 10 Open Source Web-Based Project Management Software
- Top 5 Linux Video Editor Software
Facebook it - Tweet it - Print it -
{ 4 comments… read them below or add one }
i want to find the process execution time in LINUX???
time(command) | grep user|cut -f 2
I recommend using `htop’ instead of top to monitor processes. It’s much friendlier and easy to use, and allows you to do more. (It’s colorized too!)
It’s in the ubuntu repositories, I imagine you can install it easily for debian as well.
I prefer using atop.. which gives all the option network activity, disk activity and many more you can check in the man page of it
I dont know abt redhat and fedora but its there in ubuntu and debian repo