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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
	     processes.

     -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

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