ubuntu memory usage monitor

To display the memory usage, we use the Ubuntu command line, the Terminal application.
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This article explains how to use the following 5 commands to check the available memory:

1. The free command.
2. The vmstat command.
3. The /proc/meminfo command.
4. The top command.
5. The htop command.

1. How do I monitor RAM usage on Linux?
2. How can I monitor my RAM usage?
3. How do I check my CPU and memory utilization on Linux?
4. How do I free up memory on Linux?
5. How do I check memory percentage in Linux?
6. How do you check if added RAM is working?
7. How much RAM usage is normal?
8. How do I check my RAM frequency physically?
9. How do I find the top 10 memory consuming process in Linux?
10. Which Linux command is used for monitoring network utilization?
11. Why is Linux CPU usage so high?
12. How do I clean up Linux?
13. Why is buff cache so high?
14. How do you clear RAM space?

How do I monitor RAM usage on Linux?

5 commands to check memory usage on Linux

1. free command. The free command is the most simple and easy to use command to check memory usage on linux. ...
2. 2. /proc/meminfo. The next way to check memory usage is to read the /proc/meminfo file. ...
3. vmstat. The vmstat command with the s option, lays out the memory usage statistics much like the proc command. ...
4. top command. ...
5. htop.

How can I monitor my RAM usage?

Right-click your taskbar and select “Task Manager” or press Ctrl+Shift+Esc to open it. Click the “Performance” tab and select “Memory” in the left pane. If you don't see any tabs, click “More Details” first. The total amount of RAM you have installed is displayed here.

How do I check my CPU and memory utilization on 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 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.

How do I check memory percentage in Linux?

Details are follow:

1. free: free is a standard command to check memory utilization in Linux.
2. awk: awk is a powerful command which is specialized for textual data manipulation.
3. FNR == 2: It gives the total number of records for each input file. ...
4. NR == 2: It gives the total number of records processed.

How do you check if added RAM is working?

How to Test RAM With Windows Memory Diagnostic Tool

1. Search for "Windows Memory Diagnostic" in your start menu, and run the application. ...
2. Select "Restart now and check for problems." Windows will automatically restart, run the test and reboot back into Windows. ...
3. Once restarted, wait for the result message.

How much RAM usage is normal?

As a general rule, 4GB is starting to become "not enough," while 8GB is fine for most general-use PCs (with high-end gaming and workstation PCs going up to 16GB or more). But this can vary from person to person, so there's a more precise way to see if you actually need more RAM: the Task Manager.

How do I check my RAM frequency physically?

If you're using a windows PC with windows 8 or above, then go to task manager> performance, then select RAM/Memory and this will show up the information about form factor, frequency, how many slots are available and occupied etc.

How do I find the top 10 memory consuming process in Linux?

Press SHIFT+M ---> This will give you a process which takes more memory in descending order. This will give the top 10 processes by memory usage. Also you can use vmstat utility to find the RAM usage at same time not for history.

Which Linux command is used for monitoring network utilization?

nload Displays Network Usage

nload is a command-line utility to monitor network traffic. This tool only reports in-traffic and out-traffic. It displays a graph, which is helpful for a quick overview of network traffic. However, nload has a disadvantage as it does not display traffic by PID or by socket.

Why is Linux CPU usage so high?

Common causes for high CPU utilization

Resource issue – Any of the system resources like RAM, Disk, Apache etc. can cause high CPU usage. System configuration – Certain default settings or other misconfigurations can lead to utilization issues. Bug in the code – An application bug can lead to memory leak etc.

How do I clean up Linux?

Another way to clean up Linux is using a powertool called Deborphan.
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Terminal commands

1. sudo apt-get autoclean. This terminal command deletes all . ...
2. sudo apt-get clean. This terminal command is used to free up the disk space by cleaning up downloaded . ...
3. sudo apt-get autoremove.

Why is buff cache so high?

The cache is actually written to storage in the background as fast as possible. In your case the storage seems dramatically slow and you accumulate the unwritten cache until it drains all of your RAM and starts pushing everything out to swap. Kernel will never write cache to swap partition.

How do you clear RAM space?

How to Make the Most of Your RAM

1. Restart Your Computer. The first thing you can try to free up RAM is restarting your computer. ...
2. Update Your Software. ...
3. Try a Different Browser. ...
4. Clear Your Cache. ...
5. Remove Browser Extensions. ...
6. Track Memory and Clean Up Processes. ...
7. Disable Startup Programs You Don't Need. ...
8. Stop Running Background Apps.