clr-power-tweaks.conf

Manual section

5

SYNOPSIS

clr-power-tweaks.conf is an optional configuration file for the clr_power(1) utility.

/etc/clr-power-tweaks.conf

DESCRIPTION

clr-power-tweaks.conf is an optional configuration file for the clr_power(1) utility. The configuration file contains kernel and device parameter values used by the clr_power(1) utility.

Configuration parameter values placed in clr-power-tweaks.conf will supersede the built-in defaults configured by clr_power(1). New parameters can be added to the configuration to supplement the built-in values. Built-in parameters can be changed by defining them in clr-power-tweaks.conf with a different value. Parameters can be excluded from being modified by clr_power(1) by adding them in clr-power-tweaks.conf without a value.

FILE FORMAT

clr-power-tweaks.conf uses a key-value pairs to define parameter values.

Each line contains one parameter-value pair, delimited by a space character.

Parameters are paths from the proc(5) filesystem. Parameters paths can include glob(n) wildcards to match multiple paths.

Acceptable values are determined by the parameter being set. Any parameter listed in the configuration file without a value will be excluded by clr_power(1) and the parameter will inherit the kernel’s built-in default parameter value.

EXAMPLES

  1. clr-power-tweaks.conf entry to override the default value in clr_power(1) for CPU governor with powersave. All other values built-in to clr_power(1) would still get applied.

Note the globbing used with * to target all CPU cores.

/sys/devices/system/cpu/cpu*/cpufreq/scaling_governor powersave

  1. clr-power-tweaks.conf entry to exclude a parameter causing it to use the kernel’s built-in default value (60). All other values built-in to clr_power(1) would still get applied.

    Note the omission of a value.

    /proc/sys/vm/swappiness
    
  2. clr-power-tweaks.conf entry to add two new parameters to increase UDP buffers All other values built-in to clr_power(1) would still get applied.

/proc/sys/net/ipv4/udp_rmem_min 8192    /proc/sys/net/ipv4/udp_wmem_min 8192

BUGS

The default clr-power-tweaks.conf(5) aims to have reasonable defaults for achieving power and performance efficiency. Default values may not be optimal for all systems and environments.

See GitHub Issues: https://github.com/clearlinux/clr-power-tweaks/issues

SEE ALSO

clr_power.conf(5), proc(5), sysctl(2)

For parameters understood by the kernel, please see https://www.kernel.org/doc/html/latest/admin-guide/kernel-parameters.html