Linked Questions

1
vote
0answers
80 views

Kernel_Task using too much RAM [duplicate]

ever since updating my mac to high sierra my kernel_task has been using way too much RAM up to 1gb (i have 4 gb of RAM). Any solutions on how to resolve this?
243
votes
3answers
158k views

What is the “rootless” feature in El Capitan, really?

I have just learned about the "Rootless" feature in El Capitan, and I am hearing things like "There is no root user", "Nothing can modify /System" and "The world will end because we can't get root". ...
42
votes
11answers
54k views

How do I debug an out-of-control “kernel_task” process?

Just recently I noticed my battery life having a pretty significant drop and the "kernel_task" process using quite a bit of CPU (a constant 1-6% on my 2.8ghz dual-core i7, 2010 MBP). Obviously I think ...
16
votes
7answers
300k views

“Your system has run out of application memory.” How is that possible?

(Translation it->en: Your system has run out of application memory. To avoid problems with your computer, quit any applications you are not using.) How is that possible if there are only few open ...
20
votes
3answers
30k views

How do you get system diagnostic files from macOS?

I am trying to debug a crashed (or hanging) app. How do I get the diagnostic files from the crash?
3
votes
3answers
7k views

MacBookAir kernel_task at 300% and rising [duplicate]

I have a MacBookAir5,1 connected to a Thunderbolt Display. When it gets very hot, PID 0 "kernel_task" uses ever more CPU until reaching 340% and slowing the Mac down sufficiently to make me restart ...
6
votes
1answer
4k views

“Your system has run out of application memory”, but memory pressure is not even at 50%?

The system has 16GB of memory, and the memory pressure looks well below even 50%. This doesn't make any sense. Usually the message starts popping after about 10 days without restarting. Any light to ...
3
votes
1answer
3k views

How to find out which process eats up memory?

My MacBook Pro has 8G RAM. Recently memory leak offen happened. Page outs and swap used kept increasing. The last time it used ~8G swap space. But in Activity Monitor, I can't find any process has a ...
1
vote
1answer
4k views

Free up unused memory from kernel_task

I am a web developer, and sometimes I encounter software bugs that has runaway threads or used up available memory in a browser process. Terminating the offending Chrome process will free up the ...
2
votes
0answers
1k views

kernel_task high CPU consumption and slow Mac

It's not a new problem, I'm facing it for sometime now. My MacBook runs fine all the time but this kernel_task issue occurs whenever it awakes from sleep. No issues with DisplaySleep. I can't put the ...
2
votes
0answers
486 views

Unidentified connections driving up load and kernel_task cpu usage

Well, I don't know exactly what I should ask, but I'm trying to fix that I've had kernel_task at 100-500% of CPU for most of the past week, bringing everything to a halt. I've looked at this thread: ...