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1. #What is kernel task on macbook pro activity monitor install#
2. #What is kernel task on macbook pro activity monitor simulator#
3. #What is kernel task on macbook pro activity monitor windows#

I was dealing with a textbook example of thermal throttling. When a system overheats, macOS takes CPU cycles upon itself by creating a bogus load manifesting itself as a CPU-heavy “kernel task” process. Strictly speaking, “kernel tasks” is not a process (although Apple themselves call it a “process”). It does that by taking CPU cycles away from the process which uses a lot of it and giving them to “kernel tasks” process which effectively does nothing. Then it curbs the CPU usage to cool the system down. Once CPU load goes up and CPU heats up beyond a dangerous level, the system thinks that the CPU is overheating. In my case, most likely, it is due to misbehaving thermal management. There may be a variety of reasons for that. It has been described before by Kris Wouk. These days applications can demand a switch to desecrate graphics and there’s nothing you user can do about that.Īfter some time I found that I am was dealing with a known problem. In the past, there was a way to tell macOS which GPU it should use. I didn’t play demanding 3D games on that laptop. In my case, everything was fine while the Intel GPU was in charge. Radeon Pro 455 which kicks in when a powerful 3D graphics unit is required.Intel HD 530 which is used for applications not requiring complex 3D graphics.My MacBook Pro 2016 has 2 built-in graphic chips: To be precise, the load to the discrete GPU. Anything that required even a moderate load from the GPU led to my laptop becoming comatose. The problem was not isolated to playing 3D games. I ran out of ideas and went back to research.

#What is kernel task on macbook pro activity monitor windows#

I was wrong :-( I had exactly the same CPU throttling problem when I tried to play Velocidrone on Windows under Bootcamp. I was hoping that the performance problems I was having won’t happen under Windows.

#What is kernel task on macbook pro activity monitor install#

Upgraded to macOS Catalina hoping that would make the problem go away.I checked my SSD for filesystem errors, found a few and had them repaired.Over the next few days I tried a few different things to fix that: However, I couldn’t find any correlation with any of the above. One of my friends suggested that the slowdown was caused by a heavy memory or I/O activity. One thing was clear - something was hogging my CPU. What was that mysterious “kernel task”? The search on the internet didn’t bring clarity. No matter how much I tried, I wasn’t able to find a reason for that behaviour. The CPU was consumed by “kernel_task” whatever that wasĪnd this is what it looked like when it came back to normal: When I looked at the CPU load chart it looked like this: Then everything sped back up, only to go back down in another 20 seconds. Once I started the game, the CPU went to 100% and the frame rate dropped from above 40FPS to one frame per few seconds. However, this time it was a different story. Although MacBook Pro doesn’t have enough power to run it in 4K resolution, it works reasonably well in 1280x1024.

#What is kernel task on macbook pro activity monitor simulator#

I occasionally play Velocidrone FPV racing simulator on it. Recently I started experiencing a weird issue with my 2016 MacBook Pro. How I fixed kernel_task consuming 100% of my MacBook’s CPU