xenial (1) likwid-setFrequencies.1.gz

NAME

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

SYNOPSIS

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

DESCRIPTION

       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.

OPTIONS

       -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.

AUTHOR

       Written by Thomas Roehl <thomas.roehl@gmail.com>.

BUGS

       Report Bugs on <http://code.google.com/p/likwid/issues/list>.

SEE ALSO

       likwid-perfctr(1), likwid-features(1), likwid-pin(1), likwid-powermeter(1), likwid-topology(1),