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techsun
Beginner
2,108 Views

TURBO Boost

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I am using Linux OS and I am trying to off turbo boost with this command "echo "1" | sudo tee /sys/devices/system/cpu/intel_pstate/no_turbo". But when I checked for validation from this command "grep MHz /proc/cpuinfo". It showed me different frequency. Can anyone please suggest me a command for off Turbo boost without an intervening BIOS setting.

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HadiBrais
New Contributor III
2,096 Views

By how much does the frequency vary? Note that disabling Turbo Boost only guarantees that the frequency of a core to never exceed the base core frequency, but it may become smaller depending on the frequency scaling governor and possibly also the BIOS settings.

If you disabled no_turbo and the core frequency still exceeds the base core frequency, then try to disable Turbo in the BIOS.

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HadiBrais
New Contributor III
2,097 Views

By how much does the frequency vary? Note that disabling Turbo Boost only guarantees that the frequency of a core to never exceed the base core frequency, but it may become smaller depending on the frequency scaling governor and possibly also the BIOS settings.

If you disabled no_turbo and the core frequency still exceeds the base core frequency, then try to disable Turbo in the BIOS.

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Bernard
Black Belt
2,076 Views

@techsun 

Beside what Hadi wrote, you may also take into account the notion of  the "best core". If you are investigating the highest boost rate CPU-wide (per every core) of course.

 

-- Bernard

 

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