Hello everyone. I am newbie in manjaro. I like manjaro but i have a big problem. My problem is cpu using high frequency at cpu3 ( like cpu0, cpu1, cpu2 ). Firstly i shutdown computer, and open later, my cpu3 have %87 load (minimum) in htop. my cpu fan work harder. Others is normal ( cpu0,1,2).
if i restart my computer, it works fine. For example, I finished my works and shutdown machine. When i starting computer, cpu3 have %87 load again. and i restart it, all is well.
Why does my system work different. I could not solve this problem.
This is a laptop and i have i3 3210U (two core) 1.8 Ghz with HD4000 Graphics. I have 4 GiB Ram and I use manjaro i3 WM community edition. My kernel is 5.15. sorry i don’t know some codes about manjaro. i am still learning.
baloo enabled ? i guess and this terrible service freaks out any system. i recommend to disable this service first and check if it solves the problem. furthermore we need some basic information so please post the output of
How can i look for which program effected to one core? I look at htop for mlocate services. There is no service. it looks normal in htop except %87 using cpu.
Not automaticly. Opera was started when i take screenshot on htop. if i closed opera it doesn’t change too much. idle sysytem always use about %87 of core3.
I will share htop screen with you after reboot on my laptop. in screen, there is acceptable load on core3 as much as same programs are open.
@Olli , i studied a little about CPU frequency scaling, how to do. i tried something with cpupower-gui. I switched frequency up and down. it was looks high frequency all core’s particle at first time. All of them always working on 1.8 Ghz. my machine’s performance was changing with switched frequency. now, i think my problem can be directly connected with scaling drivers. it is not working well when i starting laptop. if i reboot laptop all is working fine. But what is it? How we can know it? i guess i should study much more.
@mithrial it was always happen when i start the computer except reboot. if i start with the reboot, i have no problem with cpu frequency.
The color red means that a kernel thread is responsible for that CPU usage, htop does not show those by default. Press Shift+K to display them. Maybe that will tell us more.
Since htop displays it in red, it have to be a kernel task, a module etc. Probably something in direction of encryption and entropy plus the spectre/meltdown mitigation can procedure higher cpu usage on specific task.
It is not a Linux only problem, but also affect Windows 11 for example when you use a really old cpu as a research showed me.
When you encounter this next time then run this:
watch -n0.5 cat /proc/interrupts
and look for a process that increases very fast. Then you should know what kind of kernel task it is.
Apparently it’s either related to USB or the realtek wifi adapter. Are there USB devices connected? Does the problem go away if you disconnect them? Or does it go away if you turn off wifi in the settings?
When i turned off wifi, the problem is solved. Thanks to all.
So, how can i create a bash that is firstly disconnect wifi and then connect again automaticly when i started computer? So, i can put to i3 config as a start application.
