0
TIME+ COMMAND
------------------
73:39.09 gnome-shell                             
6:39.58 kswapd0                                 
7:20.54 kcompactd0                              
46:26.92 Xorg                                    
2579449 roadrov+
17:18.61 chrome

My laptop is very slow these days and almost every time I type "top" I can see these processes in it. All have extremely high TIME+, seems stuck.

Outputs from free -h:

               total        used        free      shared  buff/cache   available
Mem:           7.3Gi       4.7Gi       352Mi       2.0Gi       2.3Gi       344Mi
Swap:             0B          0B          0B

A few days before I tried to increase my swap size to 8GB using instructions here, all steps seemed successful, untill the last step failed as it prompted swapon: /swapfile: skipping - it appears to have holes. This is, I guess, the reason of 0 swap size.

How slow my OS is? -- I only have Chrome, Text Editor, Calendar open, and Chrome have 4 tabs, when I highlight and rightclick on something then click on search for xxx in Google, there is a chance that my whole OS freezes, can't even move cursor. After a few seconds everything will be okay, no app would be force quitted by systemd-oomd, which used to happen a lot to me before attempting modifying swap size.

Willow Lu
  • 1
  • 1
  • 2
    Please don't post images of text. Copy the text here and use code formatting: https://askubuntu.com/editing-help#code – muru Aug 09 '22 at 03:05
  • @muru Hi, it says that I need >=10 reputation to post image as image – Willow Lu Aug 09 '22 at 03:16
  • 1
    Yes, that's one more reason why you should post it as *text*. – muru Aug 09 '22 at 03:17
  • The presence of kswapd0 suggests that you may be low on RAM and your system is swapping memory pages to disk, a common cause of sluggish desktop behavior. Please edit your question to include the complete output of free -h – user535733 Aug 09 '22 at 03:29
  • @user535733 Hi I've added it and a lot other details in the question – Willow Lu Aug 09 '22 at 03:40
  • You added that your swap is broken and unusable, and that you have a teeny 0.35G RAM available to use. To me, that suggests that your problem is still RAM. The immediate solution is to open fewer Chrome tabs (web browsers are notoriously RAM-hungry). The later-today solution is to fix your swap. – user535733 Aug 09 '22 at 03:54
  • @user535733 Thanks. I will try to solve my RAM & swap problems – Willow Lu Aug 09 '22 at 04:04
  • 2
    @WillowLu fix your swapfile ... before doing anything else. If the system says that the swapfile "has holes" you didn't follow the guide correctly. – Soren A Aug 09 '22 at 04:07
  • You did not mentioned about your hardware. Are you using SSD or HDD, and how many of them. What kind of CPU do you have? – FedKad Aug 09 '22 at 05:42
  • @SorenA I've fixed Swap. Thanks – Willow Lu Aug 09 '22 at 12:31
  • 1
    @FedKad SSD, and 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz. But I've creaed the swap partition successfully, and i think the system won't be as slow as before – Willow Lu Aug 09 '22 at 12:37

0 Answers0