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likwid-setFrequencies - Online in the Cloud

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This is the command likwid-setFrequencies that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



likwid-setFrequencies - print and manage the clock frequency of CPU cores


likwid-setFrequencies [-hpl] [-c <cpu_list,_socket_list_or_expression>] [-g <governor>]
[-f <frequency>]


likwid-setFrequencies is a command line application to set the clock frequency of CPU
cores. Since only priviledged users are allowed to change the frequency of CPU cores, the
application works in combination with a daemon likwid-setFreq. The daemon needs the suid
permission bit to be set in order to manipulate the sysfs entries. With likwid-
setFrequencies the clock of all cores inside a the cpu_list or affinity domain can be set
to a specific frequency or governor at once.


-h prints a help message to standard output, then exits.

-p prints the current frequencies for all CPU cores

-l prints all configurable frequencies

-c <cpu_list,_socket_list_or_expression>
set the affinity domain where to set the frequencies. Common are N (Node), SX
(Socket X), CX (Cache Group X) and MX (Memory Group X). For detailed information
about affinity domains see likwid-pin(1)

-g <governor>
set the governor of all CPU cores inside the affinity domain. Current governors are
ondemand, performance, turbo. Default is ondemand

-f <frequency>
set a fixed frequency at all CPU cores inside the affinity domain. Implicitly sets
userspace governor for the cores.

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