How to Perform Load Monitoring in Linux Using atop

1. How do I view atop files?
2. How do I monitor a process in Linux?
3. How do I monitor memory in Linux?
4. Is an interactive command line tool used in Linux to monitor running processes?
5. How do you use atop in a sentence?
6. How do I check disk IO utilization in Linux?
7. How do I list all processes in Linux?
8. What are the monitoring tools in Linux?
9. What is the use of top command in Linux?
10. How do you kill a process in Linux?
11. How do I free up memory on Linux?
12. Where is VCPU in Linux?

How do I view atop files?

To view a log fil, type 'atop -r /full/path/to/atop/log/file . Once you open a log file (eg. atop -r /var/log/atop/atop_20150617 ), use t to go forward in 10 minute intervals and T to go back. You can analyze specific times by pressing b then entering the time.

How do I monitor a process in Linux?

In Linux, Top command is utilized to monitor Linux Process which is used frequently used by many systems. It is available under many Linux, Unix like operating system. All the running and active real-time processes in ordered list is displayed and updates it regularly by this Top command.

How do I monitor memory in Linux?

Commands to Check Memory Use in Linux

1. cat Command to Show Linux Memory Information.
2. free Command to Display the Amount of Physical and Swap Memory.
3. vmstat Command to Report Virtual Memory Statistics.
4. top Command to Check Memory Use.
5. htop Command to Find Memory Load of Each Process.

Is an interactive command line tool used in Linux to monitor running processes?

' atop ' command or program is an interactive monitor to view the load on a Linux system. It shows the occupation of the most critical hardware resources (from a performance point of view) on system level, i.e. cpu, memory, disk and network.

How do you use atop in a sentence?

Atop sentence example

1. She placed her hand atop his, assessing him. ...
2. A milk glass vase with a spray of daffodils rested atop the table. ...
3. The woman sprawled atop him shook, her blood smearing his hands.

How do I check disk IO utilization in Linux?

Run the iotop command without any arguments, to see each process or threads about current I/O usage. To check which processes are actually utilizing the disk IO, run the iotop command with -o or –only option to visualize it. Details: IO: It shows Input/Output utilization of each process, which includes disk and swap.

How do I list all processes in Linux?

Check running process in Linux

1. Open the terminal window on Linux.
2. For remote Linux server use the ssh command for log in purpose.
3. Type the ps aux command to see all running process in Linux.
4. Alternatively, you can issue the top command or htop command to view running process in Linux.

What are the monitoring tools in Linux?

Nagios can monitor a variety of Linux and other operating systems, see some additional below:

• RHEL Monitoring.
• Ubuntu Monitoring.
• Debian Monitoring.
• CentOS Monitoring.
• Fedora Monitoring.
• SuSE Monitoring.
• UNIX Monitoring.
• Operating System Monitoring.

What is the use of top command in Linux?

top command is used to show the Linux processes. It provides a dynamic real-time view of the running system. Usually, this command shows the summary information of the system and the list of processes or threads which are currently managed by the Linux Kernel.

How do you kill a process in Linux?

1. What Processes Can You Kill in Linux?
2. Step 1: View Running Linux Processes.
3. Step 2: Locate the Process to Kill. Locate a Process with ps Command. Finding the PID with pgrep or pidof.
4. Step 3: Use Kill Command Options to Terminate a Process. killall Command. pkill Command. ...
5. Key Takeaways on Terminating a Linux Process.

How do I free up memory on Linux?

How to Clear RAM Memory Cache, Buffer and Swap Space on Linux

1. Clear PageCache only. # sync; echo 1 > /proc/sys/vm/drop_caches.
2. Clear dentries and inodes. # sync; echo 2 > /proc/sys/vm/drop_caches.
3. Clear PageCache, dentries and inodes. # sync; echo 3 > /proc/sys/vm/drop_caches. ...
4. sync will flush the file system buffer. Command Separated by “;” run sequentially.

Where is VCPU in Linux?

You can use one of the following command to find the number of physical CPU cores including all cores on Linux:

1. lscpu command.
2. cat /proc/cpuinfo.
3. top or htop command.
4. nproc command.
5. hwinfo command.
6. dmidecode -t processor command.
7. getconf _NPROCESSORS_ONLN command.