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I am using a dell laptop, CPU i7, GPU NVIDIA, RAM 8GB.

I bought an ssd and put it in a caddy and put in the dvd bay. Then I installed ubuntu-gnome 16.04 onto this ssd. This ssd is the second drive on the system, the primary hdd is still there.

I can see that there is a kworker process which is consistently using 20% of cpu even when system is idle. Normally system uses only 1% of cpu when idle.

Searching internet for this issue, I found this thread Kworker, what is it and why is it hogging so much CPU? which suggests to do 

echo 1 > /proc/sysrq-trigger

and then check 

dmesg

where I can see the following..

[   19.363697] vgaarb: this pci device is not a vga device
[   25.172294] vgaarb: this pci device is not a vga device

Interestingly, the system is able to boot from the ssd and in general is working fine other than the kworker hogging cpu and heating much more (~70°C) than normal (~40°C).

So, how do I configure the system to use the ssd properly? I do not want my poor cpu to be overworking all the time and heating up.

Any suggestions will be appreciated. I can provide any info/logs that you guys require.

saqi
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  • Whether it's a SSD or HDD or whatever, in a caddy or anywhere else, has nothing to do with "overheating" or CPU hogs. Most of your question is just "noise". Here's what I think is the main factor: Not using the proprietary Nvidia drivers. PS - 70C is warmer than the usual idle temps but it's perfectly within the acceptable range. –  Dec 27 '17 at 01:48
  • Thanks Michael for taking time to write this. However, I am using proprietary nvidia driver ('additional drivers' in 'software and update').

    Also, the heating/hogging issue does not occur when I remove the ssd and boot from the fixed hdd.

    Anyways, thanks again.

     – saqi Dec 27 '17 at 12:21
  • Do you have a swap partition in use for the SSD? – mchid Dec 29 '17 at 22:45

1 Answers1

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Please read this article. Load average is high after adding second drive

I solved my problem just by switching the button (like this on the pic)

AssyK
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