Write Permission error on /sys/devices/system/cpu/cpuidle/current_driver with root user.
Issue
- Write Permission error on /sys/devices/system/cpu/cpuidle/current_driver with root user.
- Not able to change cpuidle driver
# echo acpi_idle > /sys/devices/system/cpu/cpuidle/current_driver
-bash: /sys/devices/system/cpu/cpuidle/current_driver: Permission denied
- What is the difference in feature of
intel_idle
andacpi_idle
? - How can we change cpuidle driver and verify the changes?
Environment
- Red Hat Enterprise Linux
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