kernel_task cpu usage 300% plus long press power button to start Mac Air
I'm having Mac Air 13inch 2014 having 4 gb memory and 120 gb Hard disk , from the few days i have been facing a problem that kernel_task is taking 300% of my cpu and my mac is running very slow and also it doesn't starts up until i press the power button for 30 seconds .
Things i have tried :
- Fresh Installation of OS X Yosemite
- Reset The SMC
- Reset The PRAM
All in vain the kernel_task is still appearing and i also run the apple hardware test but it shows no Errors in Hardware .
What should i do?
mac kernel osx-yosemite cpu-usage
edited Feb 12 at 12:53
Attie
11.9k32945
asked Aug 23 '15 at 18:29
abhi freakabhi freak
33
add a comment |
I'm having Mac Air 13inch 2014 having 4 gb memory and 120 gb Hard disk , from the few days i have been facing a problem that kernel_task is taking 300% of my cpu and my mac is running very slow and also it doesn't starts up until i press the power button for 30 seconds .
Things i have tried :
- Fresh Installation of OS X Yosemite
- Reset The SMC
- Reset The PRAM
All in vain the kernel_task is still appearing and i also run the apple hardware test but it shows no Errors in Hardware .
What should i do?
mac kernel osx-yosemite cpu-usage
edited Feb 12 at 12:53
Attie
11.9k32945
asked Aug 23 '15 at 18:29
abhi freakabhi freak
33
add a comment |
I'm having Mac Air 13inch 2014 having 4 gb memory and 120 gb Hard disk , from the few days i have been facing a problem that kernel_task is taking 300% of my cpu and my mac is running very slow and also it doesn't starts up until i press the power button for 30 seconds .
Things i have tried :
- Fresh Installation of OS X Yosemite
- Reset The SMC
- Reset The PRAM
All in vain the kernel_task is still appearing and i also run the apple hardware test but it shows no Errors in Hardware .
What should i do?
mac kernel osx-yosemite cpu-usage
edited Feb 12 at 12:53
Attie
11.9k32945
asked Aug 23 '15 at 18:29
abhi freakabhi freak
33
I'm having Mac Air 13inch 2014 having 4 gb memory and 120 gb Hard disk , from the few days i have been facing a problem that kernel_task is taking 300% of my cpu and my mac is running very slow and also it doesn't starts up until i press the power button for 30 seconds .
Things i have tried :
- Fresh Installation of OS X Yosemite
- Reset The SMC
- Reset The PRAM
All in vain the kernel_task is still appearing and i also run the apple hardware test but it shows no Errors in Hardware .
What should i do?
mac kernel osx-yosemite cpu-usage
mac kernel osx-yosemite cpu-usage
edited Feb 12 at 12:53
Attie
11.9k32945
asked Aug 23 '15 at 18:29
abhi freakabhi freak
33
edited Feb 12 at 12:53
Attie
11.9k32945
asked Aug 23 '15 at 18:29
abhi freakabhi freak
33
edited Feb 12 at 12:53
Attie
11.9k32945
edited Feb 12 at 12:53
Attie
11.9k32945
edited Feb 12 at 12:53
Attie
11.9k32945
11.9k32945
asked Aug 23 '15 at 18:29
abhi freakabhi freak
33
asked Aug 23 '15 at 18:29
abhi freakabhi freak
33
asked Aug 23 '15 at 18:29
abhi freakabhi freak
33
33
add a comment |
add a comment |
1 Answer
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oldest
votes
This is Yosemite's way of cooling your machine.
Activity Monitor may show that a process named kernel_task is using a large percentage of your CPU, and during this time you may notice a lot of fan activity. This process helps manage temperature by making the CPU less available to processes that are using the CPU intensely. In other words, kernel_task responds to conditions that cause your CPU to become too hot. When the temperature decreases, kernel_task automatically reduces its activity.
https://support.apple.com/en-us/HT203184
The underlying issue may be another process, or even that the airflow is blocked, causing overheat.
answered Aug 24 '15 at 5:58
TetsujinTetsujin
15.9k53462
Yeesh... nothing like an elegant solution, like DVFS for example...
– Attie
Feb 12 at 12:55
add a comment |
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1 Answer
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1 Answer
1
active
oldest
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active
oldest
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active
oldest
votes
This is Yosemite's way of cooling your machine.
Activity Monitor may show that a process named kernel_task is using a large percentage of your CPU, and during this time you may notice a lot of fan activity. This process helps manage temperature by making the CPU less available to processes that are using the CPU intensely. In other words, kernel_task responds to conditions that cause your CPU to become too hot. When the temperature decreases, kernel_task automatically reduces its activity.
https://support.apple.com/en-us/HT203184
The underlying issue may be another process, or even that the airflow is blocked, causing overheat.
answered Aug 24 '15 at 5:58
TetsujinTetsujin
15.9k53462
Yeesh... nothing like an elegant solution, like DVFS for example...
– Attie
Feb 12 at 12:55
add a comment |
This is Yosemite's way of cooling your machine.
Activity Monitor may show that a process named kernel_task is using a large percentage of your CPU, and during this time you may notice a lot of fan activity. This process helps manage temperature by making the CPU less available to processes that are using the CPU intensely. In other words, kernel_task responds to conditions that cause your CPU to become too hot. When the temperature decreases, kernel_task automatically reduces its activity.
https://support.apple.com/en-us/HT203184
The underlying issue may be another process, or even that the airflow is blocked, causing overheat.
answered Aug 24 '15 at 5:58
TetsujinTetsujin
15.9k53462
Yeesh... nothing like an elegant solution, like DVFS for example...
– Attie
Feb 12 at 12:55
add a comment |
This is Yosemite's way of cooling your machine.
Activity Monitor may show that a process named kernel_task is using a large percentage of your CPU, and during this time you may notice a lot of fan activity. This process helps manage temperature by making the CPU less available to processes that are using the CPU intensely. In other words, kernel_task responds to conditions that cause your CPU to become too hot. When the temperature decreases, kernel_task automatically reduces its activity.
https://support.apple.com/en-us/HT203184
The underlying issue may be another process, or even that the airflow is blocked, causing overheat.
answered Aug 24 '15 at 5:58
TetsujinTetsujin
15.9k53462
This is Yosemite's way of cooling your machine.
Activity Monitor may show that a process named kernel_task is using a large percentage of your CPU, and during this time you may notice a lot of fan activity. This process helps manage temperature by making the CPU less available to processes that are using the CPU intensely. In other words, kernel_task responds to conditions that cause your CPU to become too hot. When the temperature decreases, kernel_task automatically reduces its activity.
https://support.apple.com/en-us/HT203184
The underlying issue may be another process, or even that the airflow is blocked, causing overheat.
answered Aug 24 '15 at 5:58
TetsujinTetsujin
15.9k53462
answered Aug 24 '15 at 5:58
TetsujinTetsujin
15.9k53462
answered Aug 24 '15 at 5:58
TetsujinTetsujin
15.9k53462
answered Aug 24 '15 at 5:58
TetsujinTetsujin
15.9k53462
15.9k53462
Yeesh... nothing like an elegant solution, like DVFS for example...
– Attie
Feb 12 at 12:55
add a comment |
Yeesh... nothing like an elegant solution, like DVFS for example...
– Attie
Feb 12 at 12:55
Yeesh... nothing like an elegant solution, like DVFS for example...
– Attie
Feb 12 at 12:55
Yeesh... nothing like an elegant solution, like DVFS for example...
– Attie
Feb 12 at 12:55
add a comment |
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