I'm having some issue with Ubuntu. I am learning web developing and decided to use Ubuntu as my OS (on a different drive I have W10). I tried both Ubuntu 16.04 LTS and Ubuntu 17.04 (although I just got an update).

My problem is that running 3 tabs in Chrome, 2 terminals doing nothing and VSCode running a create-react-app development server would do this:


Slowing down my computer to the point that I can't do anything. (I believe that 4GB of RAM is more than enough for what I need)

On W10 I can run a lot of more applications and Chrome Tabs without any issue but with Ubuntu for some reason I can't.

My PC specs:


As of writing this, this is what System Monitor shows me:


Maybe one of this "Additional Drivers" is causing this issue(?):


I hope someone has an idea of why this is going on, because I really want to use Ubuntu.


  • 2
    Looks like your preferred setup needs about 1.5-2 more gig of RAM to prevent swapping. Use the top command to see which applications are using your memory. If you discover a memory leak, please file a bug report. If you believe that a specific app is using too much memory, feel free to contact the app's development team and explain.
    – user535733
    Nov 11, 2017 at 22:40
  • What's the output of free -m?
    – Kaz Wolfe
    Nov 12, 2017 at 6:27
  • So what seems to help is upgrading to 17.10 and using Firefox instead of Chrome. Huge improvement. Thanks all for the help.
    – Sebastian
    Nov 12, 2017 at 11:05

2 Answers 2


It looks like one or more applications have a memory leak. This bug may have been fixed already. Try

sudo apt-get update && sudo apt-get upgrade

Something that I encountered with using Ubuntu is that when I killed Firefox from htop, it kept the tabs that were open in RAM (not cache), so that "free" would show about 2.8G RAM usage. When I reopened Firefox the two tabs opened right back up and I was surprised that they stayed around. Once I closed down Firefox properly, the RAM was freed and I was back down to my usual 1.8G.

(Adding as an answer since I can't comment)

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