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I had a problem in Windows 8 where my hard-drive activity was reaching 100% all the time and the system was very slow. Now I've switched to Ubuntu Gnome and want to check if this is still a problem on Ubuntu. Is there a way to check this?

I am not looking for how much space I have on my HDD! I know how to find CPU and RAM usage as well. I am looking to find out the disk activity of my drive. For example, using Windows Task Manager it reports the disk activity as 0.04%. This is what I am looking for:

Disk Activity on Windows

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command df -h will show – 2707974 Mar 19 '14 at 12:38
also ls -s -h will display it – Olu Mar 19 '14 at 14:22
up vote 6 down vote accepted

You can try to use nmon — a command line program. Install it by running:

sudo apt-get install nmon

Then run it as nmon. You would get the following screen:

nmon mainscreen

Since you want to view disk activity, you need to press d to toggle the statistics for it. Upon pressing d, you would be presented with the following screen which shows your disk activity:

nmon disk activity

Press q to exit the program.

More information about this tool can be found at IBM developerWorks.

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thank you awsome app!! – sam Mar 19 '14 at 16:36
  • System Monitor Utility will give the exact results of your cpu and RAM usage.

  • Search for System Monitor in dash and run it.

    enter image description here


Run this command on terminal to install and run iotop which shows the disk usage,

sudo apt-get install iotop && sudo iotop
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Not looking for ram and cpu usage I know how to do this but it doesn't show you how much of the " hard-drive" is being used by Ubuntu – sam Mar 19 '14 at 13:19
On the system monitor, move to fiesystem tab. – Avinash Raj Mar 19 '14 at 13:20
again that shows how much of space in the hardrive. I am looking at how much the hardrive is being used at a given time depending on the load. this is an example in windows 8… it says "0.04%" is being used at that given time . – sam Mar 19 '14 at 13:32
Run this command on terminal, sudo apt-get install iotop && sudo iotop – Avinash Raj Mar 19 '14 at 13:53

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