![]() i) It could be spotlight indexing my drives. So I went down the list of possibilities. My hunch is that it appears to be doing some kind of indexing and that it is time activated. Along with taking up excessive CPU kernal_task writes 450GB or larger files to the hard drive. As though something behind it expects the computer to be idle. However this excessive kernel_task seems to be activated late at night. The processor can be happy all day going to and from that kind of temperature and it goes for several days without activating the excessive kernel_task. At other times when the kernel_task is not activated it can run as high as 100 when I've been doing intensive video editing work and it has not triggered the kernel_task. I found over several days and events like this that it's usually running between 40 and 60 when this excessive kernel_task is activated. ![]() So I downloaded Intel power gadget and monitored the processor temp. I presumed that I was asking too much of a the processor editing video for hours on end on a laptop. Seems obvious that that could be my problem. I'm on a MacBook Pro trying to edit in Final Cut Pro. Looking at admittedly old threads here (3-5 years old) as well as in Apple Support posts that turn up when searching "kernel_task" it seems that there has been a problem with excessive processor temperature and that kernel_task was activated to stop the processor overheating. It's often running around 1-2% of CPU, the problem I'm trying to solve is why it suddenly goes up to 800% and brings the computer to a grind. I understand the kernel_task is a group of system processes that run the computer. A very slow computer with the activity monitor telling me that kernel_task is taking up 800% of my CPU. Kernel task running at 800% and slowing my Mac Book Pro to a grind I recently upgraded to 10.14.4 and I've been getting the dreaded 'kernel_task' issue. I appreciate any insights, suggestions, or experiences the community can share to help resolve this issue and restore optimal performance to my MacBook Pro. Given the circumstances, I would like to inquire whether it would be advisable to perform a Hardware Check at an Apple Store. However, it is worth noting that this high CPU usage by the kernel_task process can also occur when I am not performing any heavy tasks, leading to system lag without the Mac going completely black or becoming excessively hot. Sometimes it even goes black, as if entering a forced sleep mode, when the CPU temperature reaches 100 degrees Celsius. Firstly, when the system usage spikes too much, my Mac becomes unusable. ![]() I suspect that this indexing operation might be causing the high CPU usage.Ĭonsidering the severity of the problem, there are two scenarios I would like to mention. It was mentioned that Backblaze's "bzfilelist" sub-process indexes changing files once per hour, and unfortunately, this process cannot be disabled. Typically, my user CPU usage remains well below 20%, even with multiple applications running simultaneously.ĭuring my investigation, I came across information suggesting that Backblaze, a backup software that runs scheduled backups, could potentially contribute to this issue. However, I only found the extension associated with my Elgato Thunderbolt 3 Dock in the /Library/Extensions directory, along with the default extensions installed by Apple.Īdditionally, I often have multiple software applications running simultaneously, but previous monitoring with iStatMenus (and Sensei in the past) has shown that my hardware is more than capable of handling these applications efficiently. While researching possible causes for this high CPU usage, I have thoroughly checked for any malicious kernel extensions. I want to mention that I am a Computer Science and Engineering student and consider myself a "power user." Therefore, I am willing and capable of performing advanced software operations if necessary, without any concerns. This issue occurs regardless of whether I am connected to my Elgato Thunderbolt 3 Dock with two external displays or using my MacBook alone on a table. The problem I am encountering is related to the kernel_task process, which consistently exhibits extremely high CPU usage, often reaching up to 1000% utilization. My MacBook Pro is equipped with an i9-9980HK processor, 32GB RAM, and an AMD Radeon Pro 5600M graphics card. ![]() I have been facing a persistent issue with my powerful MacBook Pro (16-inch, 2019) for quite some time now, and I am seeking assistance from the Apple community. ![]()
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