Analyzing Linux Server Performance with “atop”

Analyzing Linux server performance with atop

1. Shows resource usage of all processes, even those that are closed or completed. ...
2. Monitors threads within processes and ignores processes that are unused.
3. Accumulates resource usage for all processes and users with the same name.
4. Highlights critical resources using colors (red).

1. What is atop command in Linux?
2. How do I monitor Unix server performance?
3. How do you turn on atop?
4. How do I see performance in Linux?
5. How do you use the ATOP command?
6. How do I check my atop?
7. Is Windows 10 better than Linux?
8. How do I know if my Unix server is running?
9. How do I check health on Linux server?
10. How do I install atop in rhel7?
11. How do I install atop in Suse?
12. How do I resolve performance issues in Linux?
13. How do I check CPU and memory utilization on Linux?
14. How do you kill a process in Linux?

What is atop command in Linux?

The atop command is a tool for monitoring system resources in Linux. It displays tons of information related to the amount of load on the system's resources at the process level. ... This command has the ability to display multiple confidential information related to the system.

How do I monitor Unix server performance?

1. Top – Linux Process Monitoring. ...
2. VmStat – Virtual Memory Statistics. ...
3. Lsof – List Open Files. ...
4. Tcpdump – Network Packet Analyzer. ...
5. Netstat – Network Statistics. ...
6. Htop – Linux Process Monitoring. ...
7. Iotop – Monitor Linux Disk I/O. ...
8. Iostat – Input/Output Statistics.

How do you turn on atop?

RHEL and CentOS

1. Install the EPEL release package for RHEL 8: sudo dnf -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm -y.
2. Install the monitoring tools: sudo dnf -y install sysstat atop --enablerepo=epel.
3. Change the log collection interval: ...
4. Enable and restart services:

How do I see performance in Linux?

1. How To Check CPU Usage from Linux Command Line. top Command to View Linux CPU Load. mpstat Command to Display CPU Activity. sar Command to Show CPU Utilization. iostat Command for Average Usage.
2. Other Options to Monitor CPU Performance. Nmon Monitoring Tool. Graphical Utility Option.

How do you use the ATOP command?

Once you open a log file (e.g., atop -r /var/log/atop/atop_20140813 ), then use t to go forward in 10-minute intervals, and T to go back. You can analyze specific times by pressing b and then entering the time. The above shortcut keys also work in this mode: a , c , d , m , and n .

How do I check my atop?

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.

Is Windows 10 better than Linux?

Linux has good performance. It is much quicker, fast and smooth even on the older hardware's. Windows 10 is slow compared to Linux because of running batches at the back end, requiring good hardware to run. Linux updates are easily available and can be updated/modified quickly.

How do I know if my Unix server is running?

First, open the terminal window and then type:

1. uptime command – Tell how long the Linux system has been running.
2. w command – Show who is logged on and what they are doing including the uptime of a Linux box.
3. top command – Display Linux server processes and display system Uptime in Linux too.

How do I check health on Linux server?

10 Linux Commands To Monitor Your System's Health

1. Top.
2. HTOP.
3. Free.
4. Nethogs.
5. MyTOP.
6. IOStat.
7. SAR.
8. LSOF.

How do I install atop in rhel7?

On RHEL/CentOS/Fedora

First you will need to enable epel repository under RHEL/CentOS/ systems, in order to install atop monitoring tool. After you've enabled epel repository, you can simple use the yum package manager to install atop package as shown below.

How do I install atop in Suse?

Add repository and install manually

1. For openSUSE Leap 15.3 run the following as root: ...
2. For SLE 15 SP3 run the following as root: ...
3. For SLE 15 SP2 run the following as root: ...
4. For SLE 15 SP1 run the following as root: ...
5. For SLE 15 run the following as root: ...
6. For SLE 12 SP5 run the following as root:

How do I resolve performance issues in Linux?

Performance problems are caused by bottlenecks in one or more hardware subsystems, depending on the profile of resource usage on your system. Some elements to consider (in roughly sorted order): buggy software.

How do I check CPU and memory utilization on Linux?

How to find out CPU utilization in Linux?

1. The "sar" command. To display CPU utilization using "sar", use following command: $ sar -u 2 5t. ...
2. The "iostat" command. The iostat command reports Central Processing Unit (CPU) statistics and input/output statistics for devices and partitions. ...
3. GUI Tools.

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.