PSRSET(8) BSD System Manager's Manual PSRSET(8)
NAME
psrset -- control processor sets
SYNOPSIS
psrset [setid ...]
psrset -a setid cpuid ...
psrset -b setid pid ...
psrset -c [cpuid ...]
psrset -d setid
psrset -e setid command
psrset -i [setid ...]
psrset -p
psrset -r cpuid ...
psrset -u pid ...
DESCRIPTION
The psrset command can be used to control and inspect processor sets.
The system always contains at least one processor set: the default set. The default set must contain at least one online processor (CPU) at
all times.
Available options:
-a Assign one or more processors (CPUs) to the set setid. In the current implementation, a CPU may only be present in one set. CPU IDs
are as reported and used by the cpuctl(8) command.
-b Bind one or more processes to the set setid. All LWPs within the processes will be affected. Bindings are inherited when new LWPs
or processes are forked. However, setting a new binding on a parent process does not affect the bindings of its existing child pro-
cesses.
-c Create a new processor set. If successful, the ID of the new set will be printed. If a list of CPU IDs is provided, those CPUs will
be assigned to the set upon creation. Otherwise, the set will be created empty.
-d Delete the processor set specified by setid. Any LWPs bound to the set will be re-bound to the default processor set.
-e Execute a command within the processor set specified by setid.
-i List all processor sets. For each set, print the member CPUs. If psrset is run without any options, it behaves as if -i were given.
-p List all CPUs. For each CPU, print the associated processor set.
-r Remove a CPU from its current set, and return it back to the default processor set.
-u Bind the specified processes to the system default processor set.
SEE ALSO
pset(3), cpuctl(8), schedctl(8)
HISTORY
The psrset command first appeared in NetBSD 5.0.
BSD
September 23, 2008 BSD
