5 ms·

Just been going thru "Mac Kernel Task Hell" myself recently until I got a box of a cold gel packs [0] to act as my new "Macbook Pro Cooling Stand". Seriously,

by OzzyB 6y ago

Just been going thru "Mac Kernel Task Hell" myself recently until I got a box of a cold gel packs [0] to act as my new "Macbook Pro Cooling Stand". Seriously, I know my Mac is a little old (2015 pre-Touchbar) but that doesn't mean I need to suffer like this w/ kernel_task eating 1,324% of my available CPU just because it's getting a little hot. Other routes taken: - Get a Fan App to keep the fans running at max 24/7, meh - Take the risk of bricking my one and only dev machine by disabling the kernel_task process altogether, no thanks No, just one nice ice pack with a cute tea towel on top, makes for a nice stand that keeps the aluminum unibody thingy nice and cool, sigh [0] https://www.uline.com/BL_2158/Cold-Packs https://www.uline.com/BL_2158/Cold-Packs

danieldk 6y ago
Take the risk of bricking my one and only dev machine by disabling the kernel_task process altogether, no thanks It has PID 0 and is part of the kernel. AFAIK you can't disable it (unless you build your own kernel).
- saagarjha 6y ago
  You can't disable it at all; it is the kernel.
  - danieldk 6y ago
    ‘It’ refers to this specific functionality. If you recompile the XNU kernel you could disable the part that ‘reserves’ the CPU to cool the system. I am not sure whether is is still possible to replace the kernel, but IIRC some Hackintosh people replace it by custom builds (assuming that Apple released the relevant version already). Of course you probably do not want to do that, this is done for a reason.
- OzzyB 6y ago
  Understood, what I was refering to is this [0] which seems to disable the kernel_task profiler, not the kernel itself. Again, I haven't done this, too scared ;D [0] https://blog.viktorpetersson.com/2016/01/03/how-to-fix-kerneltask-cpu-usage-on-el-capitan.html https://blog.viktorpetersson.com/2016/01/03/how-to-fix-kerne...
mthoms 6y ago
Have you ever cleaned out the dust from the Macbook internals? If you've never done it, and your laptop is ~5 years old then dust is almost certainly part of your problem.
- OzzyB 6y ago
  You know what I might just try that.
  - mthoms 6y ago
    That would be the first thing I'd try honestly. You can Google lots of info/videos on how to do it. It's a pretty straightforward job if you're careful.

by OzzyB 6y ago

danieldk 6y ago

Take the risk of bricking my one and only dev machine by disabling the kernel_task process altogether, no thanks It has PID 0 and is part of the kernel. AFAIK you can't disable it (unless you build your own kernel).

saagarjha 6y ago
You can't disable it at all; it is the kernel.
- danieldk 6y ago
  ‘It’ refers to this specific functionality. If you recompile the XNU kernel you could disable the part that ‘reserves’ the CPU to cool the system. I am not sure whether is is still possible to replace the kernel, but IIRC some Hackintosh people replace it by custom builds (assuming that Apple released the relevant version already). Of course you probably do not want to do that, this is done for a reason.
OzzyB 6y ago
Understood, what I was refering to is this [0] which seems to disable the kernel_task profiler, not the kernel itself. Again, I haven't done this, too scared ;D [0] https://blog.viktorpetersson.com/2016/01/03/how-to-fix-kerneltask-cpu-usage-on-el-capitan.html https://blog.viktorpetersson.com/2016/01/03/how-to-fix-kerne...

mthoms 6y ago

Have you ever cleaned out the dust from the Macbook internals? If you've never done it, and your laptop is ~5 years old then dust is almost certainly part of your problem.

OzzyB 6y ago
You know what I might just try that.
- mthoms 6y ago
  That would be the first thing I'd try honestly. You can Google lots of info/videos on how to do it. It's a pretty straightforward job if you're careful.