My mac:
About a couple of times a day, one thing odd occurs with my mac:
- My wifi behaves like it might’t discuss to my router.
- A
kernel_tasktakes up 80-90% of my first core.
I’ve use MenuMeters and Sizzling to try to work out what’s taking place. My first guess was that the laptop computer was overheating. I put my laptop computer on a Wii stability board I’ve rigged up as a cooling pad and I assumed that will repair it but it surely stored taking place. After putting in MenuMeters and Sizzling, I can see that temperature doesn’t appear to correlate with my wifi points.
This was taken throughout a disconnect. Of word within the picture is MenuMeter indicating that wifi appears disconnected (the grey community indicators that say “0B/s” to the far proper of the menu bar). Not pictured, if I click on on the wifi icon I can see that it is nonetheless linked to my dwelling wifi with out a warning, as if the whole lot was positive. Additionally word that MenuMeters exhibits my first CPU is working actually arduous (inexperienced is consumer area, purple is kernel). Sizzling claims my CPU is 76C however not throttled (“throttled to 100%” i.e. no throttling). I’ve seen my CPU hit 85C with no influence to wifi. If I wait it out with out restarting, it’s going to stay disconnected for 10-30 minutes in the beginning appears to kind itself out. It will reconnect on it is personal at full velocity.
That is a picture of sudo htop sorted by CPU %. kernel_task is all the time consuming up a variety of a single core’s processing energy each time I disconnect. As quickly as I start a community motion that begins to take a very long time (and finally by no means connects), I can reliably lookup at MenuMeters and see the primary core is working arduous in kernel area. The pie chart between Sizzling and the CPU meters is my reminiscence. In different conditions the place I had a reminiscence leak, I’ve seen a slice of that pie develop till it takes up the entire circle. That does NOT occur throughout these disconnects. My wifi is working proper now and the pie chart in my menu bar seems precisely just like the one pictured mid-disconnect.
There’s dozens of gadgets on my community. Telephones, different folks working, sport consoles, TVs, no matter. All of them proceed to switch over the community unaffected by no matter my laptop computer is coping with. Turning the wifi off and again on appears to do nothing. Giving my laptop computer extra air does not appear to vary something. I’ve 3 issues plugged into my laptop computer: a charging cable, and a dongle that has an HDMI cable plugged in in addition to a USB headset. The dongle is plugged in on the left aspect of the laptop computer and the charger is plugged in on the precise (recommendation I noticed on a web page claiming the difficulty was thermal cooling) however I’ve not observed a change in conduct after altering my setup on this means.
I am a backend developer so I’ve issues like docker and kubernetes put in however the community disconnects do not appear correlated with any consumer actions in any respect.
I am out of concepts. I’ve no clue what course of owns the kernel job or what it is making an attempt to do. Any assist debugging this might be drastically appreciated!
